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ANTEC '90 draws 4800 to Dallas, focuses on environmental issues.

ANTEC '90 Draws 4800 To Dallas, Focuses on Environmental Issues

The Society of Plastics Engineers' 48th Annual Technical Conference attracted 4807 industry professionals to Dallas on May 7-11. Conference headquarters was the Loews Anatole Hotel, which was, luckily, unaffected by the floods plaguing the city at the time. Attendees were treated to plenary speeches, technical papers, exhibits, and a Super Session concentrating on the theme of the Conference, "Plastics in the Environment: Yesterday, Today, and Tomorrow."

Dr. Leonard H. Drexler assumed the Presidency of the Society, accepting the mantle of leadership from outgoing President Vivian E. Malpass.

Some 500 technical papers were delivered at ANTEC '90; 330 people took part in SPE seminars; and 150 exhibitors, in 184 booths, occupied almost 16,000 [ft.sup.2] of exhibit space.

Business Meeting Highlights

Presenting his review of the past year at the business meeting and luncheon on Monday, May 7, outgoing SPE President Vivian E. Malpass emphasized his leadership in helping to establish an intersociety Polymer and Plastics Education Task Force to address the shortage of professionals, and in sustaining Society membership growth both in the U.S. and internationally. Other accomplishments in educational programs noted by Dr. Malpass included strengthening of the SPE seminar program, a $50,000 commitment to production of the film Careers in Plastics, and establishment of an SPE Scholarship Fund. (Full details are available in the Society's Annual Report, published in the May PE.)

Dr. Leonard H. Drexler, the incoming SPE President, chose "Vision" as his theme for 1990-1991. Defining vision as a look into the future as we want it to be, Dr. Drexle foresees year-by-year improvement in the Society. He stated his theme of "Vision" for the next year as "To do the best for our members, for our profession, for our Society, for the public." (See page 3 of this issue.)

Super Session

The ANTEC '90 Super Session, "Dealing With the Solid Waste Crisis," was true to its title. For over nine hours, a diverse slate of experts from industry and government provided insights into complex issues.

The bottom line was a conviction that the plastic industry can deal effectively with the problems by utilizing major existing and potential resources within government, industry, and the public. The Super Session affirmed that the plastics industry is on the edge of an environmental precipice, and can either fall towards increasing legislation or avoid this fate by becoming a greater part of the solution. Ted Byers, vice president, Research International, said, "Americans have a love/hate relationship with their plastic consumer products. Plastics'safety, durability, and convenience are widely valued, but the perceived environmental effects are increasingly feared and resented." Byers noted that two thirds of the population believes environmental risks outweigh the benefits of plastic. He recalled that in 1986, polls showed that 31% felt the risks outweighed the benefits; in 1988, the figure had jumped to 57%. Further, "plastic is becoming, in the mind of the American consumer, a symbol of the nation's overindulgence - the ever-present, tangible embodiment of man-made excesses and wastefulness. "The marathon Super Session, however, counterbalanced this view with an upbeat current and near-future agenda

Of 42 packaging tax proposals introduced last year in 14states, none became law, Keith Atkins, director, new business, Union Carbide Corp., disclosed. Sixty-six proposals banning polystyrene products were introduced at the state level Sixty did not pass. Of those passed, three required polystyrene to reach specific recycling rates or else be banned; the others were administrative actions aimed at limiting use of polystyrene by government facilities and concessions. Also, last year, there were 108 proposals at the local level that focused on banning or limiting the use of polystyrene products.

These activities have not gone unchallenged. SPI's Council for Solid Waste Solutions (CSWS), formed two years ago, has been an aggressive and effective proponent of the plastics industry on the government, industry, and community levels. The CSWS's government relations team, with its programs of education, has done much to set the record straight and has had a significant impact in slowing down legislative initiatives. But much hinges on the future accomplishments. Otherwise, increased legislative activity at the state and local levels is predicated. As Atkins said, in many states, the heat is on the plastics industry to recycle or be banned-if not by the legislatures, then by referendum. Such initiatives already are on November ballots in Massachusetts and Oregon. "The only way to prevent initiatives from being placed on the ballot," said Atkins, "is by convincing the American public and their elected officials that we are implementing plastics recycling, and that our industry is doing its fair share to solve the waste management problem."

Frank N. Aronhalt, director, environmental affairs, Du Pont Co., sees politicians and opinion leaders becoming better informed and developing a more rational, rather than a "quick fix," approach to legislative initiatives. He foresees growing demands for increased business investment in long-term solutions for solid waste disposal; for designing for environmentally sound disposability of products; and for making it easier for communities to participate in recycling programs.

According to Jeffery Denit, deputy director of the Environmental Protection Agency's Office of Solid Waste Management, 76% of municipal solid waste currently is landfilled. It is estimated, however, that 70% of municipal landfills will close within 15 years. At the same time, a 22% growth in waste volume is anticipated by the year 2000. In 1980, for example, paper contributed 32.5% of the total waste stream, and this load is expected to rise to 39.1% by the year 2000; plastics, at 7% in 1980, is projected to increase to 9.2%. With NIMBY (Not in My Back Yard) protestors in local communities as strong as ever against new incineration plants, recycling has moved front and center as a practical and also politically expedient solution. Denit said that in order of preference, EPA ranks source reduction, recycling, and disposal as the optimum solutions for the growing solid waste crisis.

Don Shea, executive vice president, CSWS, said that consumers are overwhelmingly in favor of recycling over other methods, but that success will depend on their participation. The goal of a CSWS National Plastics Recycling Blueprint is to make plastics the most recycled material by year 2000.

Many types of recycling and other solid waste management ventures are taking place across the U.S. Industry is assuming increasing responsibility for providing solutions. For example, Mobil Chemical has a compaction unit to densify polystyrene foam into easily handled blocks for recycling. Procter and Gamble has a closed-loop system for recycling plastics bottles into new ones for second-generation packaging.

Du Pont, which joined with Waste Management Corp. last spring, will have plants in Philadelphia and Chicago. Each will handle 40 million lbs/yr of recycled material. In Illinois, the company also is developing road construction projects.

A Union Carbide facility in Piscataway, N.J., will recycle plastic film and HDPE bottles.

BFGoodrich will recycle drainage pipe, and an Amoco Chemical facility in Brooklyn, N.Y., will recycle foam containers into new products.

Eight leading polystyrene producers have formed a coalition, with the goal of recycling 25% of their material.

Rubbermaid says it will takes as much recycled polystyrene as it can get, and McDonald's will buy building materials from recycled materials for seats, tabletops, and insulation, and also is recycling foam products. The company is hoping to create the largest market for recycled products in the U.S

As part of the Chicago Park District Project, a perimeter wall was made of recycled milk jugs and 2-and 3-liter plastic soda bottles. Hammer's Plastic Recycling Corp. used about 80% industrial plastic waste for the project.

In addition to its comprehensive educational programs, CSWS will fund three pilot projects in Hennepin County, Minn., designed to develop the most efficient recycling methods for medium-sized towns. The efforts includes developing a spirit of cooperation between local government bodies and communities. CSWS is trying not only to develop collection mechanisms, but also to encourage fabricators to use recycled products.

SPE President Leonard H. Drexler captured the mood of the speakers and the audience at the Super Session with a challenge that the membership make solid waste management a way of life, as leaders at home and in their professional capacities. The Super Session thus documented many current and future activities aimed at turning an atmosphere of concern into one of achievement.

Management Forum

The participants in the ANTEC '90 Management Forum on "Feedstock Challenges for the Plastics Industry in the 1990s" did not foresee any problems in either raw material or resin supplies. The answers to the commonly posed question as to the effect of recycling on a particular resin were also surprisingly unanimous. Recycling is a "wild card" and as such unpredictable, but after a period in which use of recycled resins may depress virgin resin production, it will help clear the environmental cloud hanging over the industry and lead to a surge in the production of all resins.

The symposium was organized by SPE Past Presidents Bruce A. Petersen and William C. Kuhlke, the latter of whom also moderated. Dr. Vivian E. Malpass, 1989-1990 SPE President, gave an opening address.

Ronald H. Yocum, president, USI Div., Quantum Chemical Corp., concluded from his review of price/capacity trends of ethylene and propylene feedstocks and polyethylene and polypropylene in the 1970s and 1980s that higher margins usually drive capacity expansions. He predicted more of the same for the 1990s - periods of higher resin and feedstock prices followed by periods of lower prices, due to over capacity, when Dr. Yocum said, "at times, you may not always like the prices. Then again, at other times, neither will the producers."

Mark A. Bruner, executive vice president, Huntsman Chemical Corp., and Frederick A. Sacks, director of marketing, Occidental Chemical Corp., reporting on polystyrene and polyvinyl chloride, respectively, predicted high operating rates - nearing 90% of capacity - and no capacity shortages for resin producers for most of the 1990s. Because of its low cost and easy processability, PS is popular in Eastern Europe and less-developed countries, and world capacity will depend on how soon they are able to bring their own plants onstream - probably in cooperation with global producers such as Huntsman. China is a true "wild card" in this analysis.

U.S. PVC producers, dependent upon the currently flat construction industry for 65% of their output, and facing a lowdown in growth in vynil window and siding use, are benefiting from a rise in exports,totaling 10% of production. Sacks noted that the 1980s saw a shakeout in PVC producers, and production is now dominated by eight large integrated producers who can weather short-term periods of overcapacity.

Dennis H.Reilley,director of Titanium Dioxide Operations at Du Pont Co., predicted that with capacity increases p.2] will be in oversupply by 1995 if demand returns to its 3%/yr historical rate of increase. Mr. Reilley did qualify his rosy outlook by noting that high quality ore is now in short supply, forcing the use of higher cost, low quality ores, and that environmental regulations may inhibit production after the mid-'90s.

Robert J. Ockun, vice president, sales and marketing, Himont U.S.A., Inc., focused on growth opportunities for polypropylene made possible by Himont's gas-phase technology. This technology has transformed polypropylene into a family of materials (see "Technical Program," below, for some details) with new grades for every plastic market. Mr. Ockun predicted growth in the 1990s will come from material replacement. "As we at Himont view the long term, one of the dominant themes for the future of our industry is internal competition that pits plastic against plastic on a global scale." He foresees that the high level of performance of the new polypropylenes, coupled with their inherent economic advantages - low raw material cost, low density, and easy processability - will enable propylene-based materials to replace other resins, both commodity and engineering types.

William R. Donberg, business director, Engineering Thermoplastics, Dow Chemical U.S.A., predicted modest growth for ABS and an operating rate of 80% of capacity, which he deemed "comfortable" for a highly fragmented, 1.25 billion-lb/yr U.S. market. Mr. Donberg sees growth for ABS involving new blends and alloys, and polymers modified for UV, ignition, and heat resistance, mainly for the automotive and business machine markets. Blends well advanced in the development stage are ABS/nylon and ABS/PVC. They will supplement ABS/polycarbonate in the above markets and find applications in the appliance and electrical areas.

M. Neil Checker, principal, Chem Systems, Inc.,wound up the Forum with his outlook for engineering resins in the 1990s - a 6% growth rate, half that of the 1970s and 1980s; further, high R&D costs and slow market penetration associated with new engineering resins will lead to the introduction of more blends and alloys. The resins historic high gross return on sales and overcapacity have led to strong competition, as evidenced by a multitude of product lines and a 15% to 20%/yr applications turnover rate. Dr. Checker predicted that even more product lines will emerge and that strong competition from Japan and Western Europe will reduce margins.

A Quality Approach

Three of the four plenary sessions were devoted to the theme of ANTEC '90 - "Plastics in the Environment: Yesterday, Today, and Tomorrow," Monday's speaker, John R. Webb, president, Polymer Business Group, Exxon Chemical Co., linked the management of solid waste to his company's Total Quality Program. Since customers define quality, and since they now require use of materials and processes perceived by the public to be environmentally acceptable, Mr. Webb called for suppliers to develop technologies and markets for plastics that permit both source reduction and recycling. He noted, "This is where I believe the plastics industry can, and must, contribute real leadership. Through recycling we aim to establish plastics as preferred materials, not only for value and performance, but also for their environmental benefit."

Call to Action

Tuesday's plenary speaker, J.Roger Hirl, president and chief operating officer of the Occidental Chemical Corp., covered the growing political and social pressures on the plastics industry and the industry's response: education of the public through the programs of SPI's Council for Solid Waste Solutions (CSWS) and innovative programs for source and waste reduction and recycling. In suggesting specific responses, Mr. Hirl noted his company's accomplishments - internally, in a program with annual goals for reductions in solid wastes and air and water pollutants, and externally, in buying back PVC bottles for recycling and sponsoring Vermont Republic Industries' efforts in recycling HDPE ice cream pails. He said that the lesson OxyChem has learned is, "There are times we need to lead with actions, and if need be, create our own markets and opportunities. As an industry, our wisest course is to lead with actions and not just words."

Progress Report

Thursday's first speaker, Archie W. Dunham, group vice president, polymer products, Du Pont Co., reviewed the garbage problem particularly from the viewpoint of public officials who must site new landfills while faced with regulatory, public, and budgetary pressures. He also discussed public misconceptions about the role of plastics. Noting that "the industry m7st show progress toward solid waste management solutions," Mr. Dunham cited actions taken by individual companies in recycling efforts and emphasized the goals and accomplishments of the CSWS - in effective lobbying at the state and local levels, in generating credible data on the recycling and waste-to-energy conversion of plastics, and in correcting misinformation by publishing high quality, credible materials.

A Recycler's Perspective

The recycler's viewpoint was presented by Thursday's second speaker, Donald A. Wallgren, vice president, recycling, development, and environment, Waste Management of North America, Inc. Wallgren noted that while collection programs are expanding rapidly, separation should not be confused with recycling, and he called for the plastics industry to develop markets for recycled resins. He also asked the industry to make collectibles recyclable by better material selection and to aid in the mechanization of sorting through adoption of a bar-code or laserscanning labeling method.

International Award

Address

Wednesday's plenary speech, titled "A Visit to UNIPOL World," was a thorough review of a low-pressure, gas-phase process for polyolefin polymerization, presented by the principal investigator and inventor, Dr. Frederick J. Karol of Union Carbide, winner of the 1990 SPE International Award. Dr. Karol emphasized the development of the process, especially catalyst requirements and research, its economic advantages over the high-pressure processes, and new products - from LLDPE to Flexomer copolymers. The large audience was apparently in total accord with Dr. Karol's assessment that "the impact of Unipol technology on the plastics industry is awesome."

The excellent environmental record of the Unipol process was shown to be a product of its relative simplicity with mild operating conditions, no water or metal disposal problems, and no solvents (with their potential for accidental air emissions or leakages). "Unipol University," where company and licensee employees are thoroughly trained in safe operation, was also described. Dr. Karol sees that "the potential of catalyst technology to provide dramatic new improvements in the Unipol process and product areas remains high. "He predicts that the 1990s will see the introduction of polyolefins with better stereochemistry and tailored molecular-weight distributions and copolymers with polarity and unsaturation in the polymer chain.

Technical Program

Developments in plastics materials received a lot of attention in the ANTEC '90 technical program. Researchers from Himont U.S.A. Inc., introduced three members of their "family" polypropylenes that were recently created through the company's gas phase polymerization processes: * In "High Melt Strength Polypropylene for Melt-Phase Thermoforming," K.E. McHugh and K. Ogale compare the properties and processing behaviors of new and conventional 0.35-dg/min melt flow rate polypropylenes. They show that only the new polymer has both the high molecular weight and high extensional viscosity necessary to obtain the requisite sag resistance for successful forming on conventional equipment. Increasing the processing temperature to 190 [Degrees] C to achieve true melt-phase thermoforming is shown to dramatically improve the thickness uniformity and stiffness of thermoformed containers. * High extensional viscosity is also shown to be the key property in "Novel Foamable Polypropylene Polymers," by M.R. Bradley and E.M. Phillips. Foam was successfully made with a high melt strength, 7.0-dg/min melt flow rate polypropylene using CFC-114 blowing agent on laboratory equipment modified to simulate a conventional tandem system for polystyrene or low-density polyethylene foam production. A 170 [Degrees] C melt temperature was used; the foam had a density of 90 [kg/m.sup.3] and an average cell diameter of 0.9mm. Attempts to produce foam with a conventional 3.5-dg/min melt flow rate polypropylene failed because of rupture of the cell walls, leading to total collapse of the structure. * In "Lower Cost Alternatives to Glass Reinforced Nylons," J.D. Cowperthwait and R.M. Baughman present guidelines for the use in engineering plastic applications of new 30% and 40% glass-filled polypropylenes that are easy to mold because of improved rheological properties. The polypropylene composites are shown to compare quite favorably with the nylons in chemical resistance, high temperature flexural modulus, and electrical and mechanical property retention after heat aging. Use of the polypropylenes in applications requiring high creep resistance, high tensile strength, or high toughness should be carefully evaluated.

Innovative thermoplastic elastomers (TPEs) continue to be developed at a rapid rate, and several of these were described at ANTEC: * Polyamides grafted to acrylic rubbers are the first products from Du Pont's new proprietary grafting technology, which combines functionalized engineering thermoplastics with rubbers so that the plastic remains the continuous phase even when it is the minority component. In "New Flexible Thermoplastic Alloys," J.D. Katsaros and D.G Grimes list the alloys' outstanding properties as high temperature heat-aging performance, low temperature toughness, and flexibility without the use of plasticizer. Materials covering a wide range of molding and extrusion processes have been developed. * K. Venkataswamy and M.T. Payne characterize TPE-4000, made by Monsanto's dynamic vulcanization process, in "A New High Temperature Thermoplastic Alloy." Hot air aging performance (at 177 [Degrees] C and 200 [Degrees] C) second only to silicone rubber is demonstrated for the TPE, as well as good performance in several hydrocarbon fluids. * Sarlink 2000 is "A New Family of Low Permeability, Weather- and Heat-Resistant Thermoplastic Elastomers" from Polysar Ltd. According to authors A.L. Ayub, M.A. Lebel, and K.J. Robinson, the especially useful properties of the TPEs are their low rebound, impermeability, good damping, and broad temperature range. The materials exhibit both shear thinning and melt freezing, enabling short injection molding cycle times. * Butadiene-acrylonitrile rubber (NBR) polyvinyl chloride compounds are not new, but in "Thermoplastic Elastomers from NBR and Polyvinyl Chloride," M.K. Stockdale of The Goodyear Tire and Rubber Co. focuses on new blends with relatively low NBR concentrations,approximately 20%. NBR addition, particularly the crosslinked rubber designed for PVC modification, is shown to improve a wide variety of rubber-like properties and greatly limit plasticizer loss. Choice of NBR, PVC molecular weight, plasticizer, and antioxidant are also shown to affect physical properties. While NBR addition improves low temperature properties, the service range of NBR/PVC alloys is still limited compared with competitive TPEs.

Among the many alloys and blends introduced were: * "Polyurethane/Novolak Foams" and "Polyurethane/Polyvinyl Chloride Foams" were produced by S. Boukobbal, S. Fellahi, and A. Mourghad at the Algerian Institute of Petroleum by reaction injection molding. The phenol-formaldehyde novolak or PVC and appropriate additives were added to the polyol, the mixture was heated to 80 [Degrees] C or 60 [Degrees] C, respectively, to achieve a 4-poise viscosity, and the foams were prepared by the one-shot, free-rise method. Novolak and PVC concentrations ranged up to 20%. Testing of post cured foams showed that in both cases polymer addition decreased mean cell size, increased apparent density, increased compressive strength, decreased water absorption, and dramatically reduced the burning rate. The technique therefore offers foam reinforcement while obviating the need for flame retardants. * The "New Heat Resistant Styrenic Copolymers Having Unique Properties for Blends and Composites" are styreneacrylic acid copolymers (SAA) that achieve their improved heat distortion through thermally reversible interchain hydrogen bonding rather than chain stiffening and are, therefore, easy to injection mold. The carboxyl functionality improves adhesion to glass fibers and compatibility with polar polymers. D.B. Priddy and D.E. Henton of Dow Chemical Co. report that addition of the copolymers to polycarbonate/ABS or acrylate rubber blends increases their heat distortion temperatures, and SAA/polycarbonate blends are tough, heat-resistant alloys. A 20% glass-filled SAA composite is shown to retain much more of its tensile strength after exposure to boiling water than a similar polystyrene composite.

Processes and processing modifications were not neglected at ANTEC. Some of the more innovative included the following: * A new technique that promises to lower the price of advanced composites is described in "Flexible Towpreg by Powder Fusion Coating of Filaments," by J. Muzzy, B. Varughese, and P.H. Yang of Georgia Tech. The tow is first spread so that every filament is exposed, and then polymer powder is applied in an electrostatic fluidized bed coater in which the filaments are grounded and the powder is charged. After melt fusing in an oven, the tow is cooled and wound on a bobbin. Laminate consolidation techniques are not established. Currently, unidirectional samples are made by winding the tow on a lozenge-shaped mandrel with large flat areas and, after sufficient tow is built up, spot welding near the edges of the flat sections and then compression molding. Polymers used include PEEK, a thermoplastic polyimide, and an epoxy. Various carbon fibers and an S-2 glass fiber were used. The process offers the advantages of complete coating of each filament and comparatively rapid production of a flexible product. Thermoplastics or thermosets can be used, and either conducting or nonconducting fibers. * R.F.Dray, who heads his own company, described his patented invention in "Optimizing the Extrusion Process." Called "The Controller," the device is an adjustable dam mechanism that when placed at strategic locations along the extruder screw, optimizes internal pressure profiles. Its mounting allows micrometer adjustment by either mechanical or hydraulic means. The stable operation thus attained is said to allow optimal operation for wide ranges of viscosities and different resins. Indeed, on one of the examples given, high rates with stable operation were achieved on one screw for three different materials - a polypropylene, a nylon, and a HDPE. * Successful pilot plant production of profiles and blowmolded bottles from the continuous synthesis of nylon 6 in an extruder coupled to immediate post-processors is reported by U. Berghaus and W. Michaeli, of the Institut fur Kunststoffverarbeitung, in "Reactive Extrusion of Nylon 6 - Aspects of Industrial Use." A standard commercial monomer casting system was used. Two separate monomer melt flows, mixed with activator or catalyst in a linked-up streamline proportion system, were injected into a co-rotating, intermeshing, twin-screw extruder for polymerization and subsequent removal of residual monomer. The profiles were shaped in a suitable die attached to the extruder output and cooled by spray cooling. The slow cooling of the bar determined the rate of the process, and not the polymerization in the extruder; throughput may be improved by used of a multiple-orifice die. For bottle production, the polymer was conveyed directly into the accumulator head of an extrusion blowmolding machine in which parison formation is automatically triggered when sufficient volume is reached. With catalyst inhibition, residual monomer levels can be reduced below 2%. The careful control of polymerization conditions possible in reactive extrusion allows a wide range of molecular weights to be produced, a higher molecular weight at lower raw material cost compared to that of hydrolytic nylon 6 was achieved. Profile properties were similar to those of a standard nylon 6 extrusion grade. The diffusion resistance of the nylon 6 bottles was similar to that of trifluoroethylenecoated polyethylene bottles.

The full conference proceedings are available from the SPE Publications Department. Member price is $110; nonmember, individual $135; corporate library, $160.

Exhibitors

The following is an overview of the equipment and materials either shown or illustrated by ANTEC exhibitors.

Actual Plastics Technology Corp. offers a measuring and control device. Profitec 01, which is said to allow the recognition and correction of proportional changes that occur during extrusion. Modulated infrared light is sent through the device's glass fiber measuring head to a measuring and reference plain. The measuring head is affixed so as to allow one edge of the extruded material to be immersed in the infrared light between the transmitting and receiving plain, an LCD display shows the material's immersion depth in bar form. Changes in material accumulation are registered immediately through changes in material immersion in the infrared light. Registered changes can then be corrected by changing the haul-off speed or extruder rotation. Extrusion Technology, Actual Plastics Technology Corp., 510 Heron Dr., Unit 206, P.O. Box 400, Bridgeport, NJ08014; (609) 467-4900; Fax (609) 467-5099.

Adell Plastics, Inc., fielded inquiries concerning its custom compounding services. The firm's systems include twin-screw compounding extruders that are said to provide optimal control over the mixing process - individual screw sections can be modified to accommodate the exact mixing and shear conditions required for processing a particular formulation. Adell's quality control system includes statistical process control and statistical quality control. The firm also distributed information concerning its proprietary pelletized silicone concentrates, which are said to reduce molded-in stresses, minimize part warpage, and improve the flow characteristics of most polymers. Adell Plastics, Inc., 4530 Annapolis Rd., Baltimore, MD 21227; (301) 789-7780; (800) 638-5218; Fax (301) 780-2804.

Advanced CAE Technology, Inc., illustrated its C-MOLD package of integrated CAE software, which is specifically designed to increase production efficiency and improve part quality in injection molding of plastics. The software package, which uses material data from an extensive polymer database to perform simulations, comprises the following: C-FLOW, an injection mold filling process simulator, which provides transient analysis of runner and cavity filling and which can be used on IBM's RS/6000 workstation; C-PACK, which simulates the post-filling process and products part shrinkage and dimensional stability through transient analysis; and C-COOL, which simulates the heat transfer between the cavity and the cooling channels and runners and helps determine optimal cooling channel placement in mold design. Advanced CAE Technology, Inc., Warren Road Business Park, 31 Dutch Mill Rd., Ithaca, NY 14850; (607) 257-4280; Fax (607) 257-6355.

Ajinomoto USA, Inc.'s Scopeman, a fiber optic microscope and video display system, features multiple magnifications for greatest flexibility; fully enclosed fiber optics, which offer even illumination and improved monitor viewing; image processing software for optimizing picture quality; and modularity, which permits expandability of the system. Two models are available: the MS-501, a self-contained, portable microscope system with a built-in control unit, VTR, and TV monitor; and the MS-503, a desktop-style model that can be connected to additional peripherals. Ajinomoto also offers a line of latent curing agents and accelerators for epoxy resin systems. Ajinomoto USA, Inc., Glenpointe Centre West, 500 Frank W. Burr Blvd., Teaneck, NJ 07666-6894; (201) 488-1212; Telex 275425 (AJNJ); Fax (201) 488-6282/6472.

AluChem Inc. illustrated a range of nontoxic, flame-retardant, smoke-suppressant fillers. Its refined chemical and mineral fillers include unground, coarse grind, intermediate grind, fine grind, and superfine grind hydrated aluminas.

AluChem's AC-99 Tabular Alumina fillers are high density, fully shrunk, coarse crystalline alpha aluminas that have been converted to the corundum form. Tabular Alumina's high heat capacity and thermal conductivity reportedly aid in preventing the excessive temperature rise and exotherm problems that are frequently associated with epoxy curing and promotion. AluChem Inc., One Landy Lane, Reading, OH 45215; (513) 733-8519; Fax (513) 733-0608.

American Barmag Corp.'s exhibit illustrated the firm's line of discharge gear pumps, gear pumps for extrusion equipment, and nonstop long-life filters. The discharge gear pumps feature a refined design that offers benefits such as lower consumption of power, a low delta T, and gentle treatment of the melt.

Barmag's extrusion gear pumps have rheologically designed inlet and outlet areas that are said to ensure safe filling of the tooth spaces and optimal polymer flow conditions. The pumps promise increased throughput by means of improved melt temperature control and minimized pressure fluctuations, shorter start-up and setup times, and gentle treatment of the melt and reduced stress within the extruder. American Barmag Corp., 1101 Westinghouse Blvd., P.O. Box 7064, Charlotte, NC 28241; (704) 588-0072; Telex 8106210485; Fax (704) 554-0141.

Applied Color Systems, Inc., offered information on its Chroma-Calc Color Control software package, advanced features of which include pre-grouping of pigments in color sectors and end-use modules to speed color matching; colorant search for retrieval of existing formulas to match new colors; and multiple match queuing for automated matching of a large number of color standards. The ACS 2018 Color Control System uses Chroma-Vue software to provide high fidelity reproduction of object colors on the system's video display. It also includes the ACS Chroma Sensor CS-5, which is a dual beam, direct-sample-imaging (DSI) spectrophotometer. Applied Color Systems, Inc., P.O. Box 5800, Princeton, NJ 08543; (609) 924-2189; Telex 178276; Fax (609) 896-3804.

Applied Test Systems, Inc., featured its recently introduced Series 1400 computer controlled Universal Testing Machine. Series 1400 UTM offers closed-loop digital control, compatibility with a wide range of peripherals, and a modular design. ATS also offered information on its line of lab/test ovens and furnaces, Series 1800 pressure testing systems, grips and fixtures, a data acquisition materials testing system, and many other testing machines. Applied Test Systems, Inc., 384 New Castle Rd., P.O. Box 1529, Butler, PA 16003; (412) 283-1212; Telex 86-6727 ATS Butler; Fax (412) 283-6570.

Arizona Instrument Corp. displayed its Computrac TMX moisture analyzer. The instrument determines the concentration of moisture by heating samples at a constant programmable temperature and sweeping the evolved volatiles into an analysis cell, which selectively traps the moisture from the volatile stream. A built-in balance measures the water that is collected in the cell and computes the percentage of moisture. The firm also has a Computrac MAX-series of moisture analyzers, for determining moisture levels in powder, liquid, and semisolid samples. Arizona Instrument Corp., P.O. Box 1930, 1100 East University Dr., Tempe, AZ 85280; (602) 731-3400; (800) 528-7411; Telex 910-950-0134; Fax (602) 731-3434.

Art Information Services, Inc., provided information concerning its monthly newsletter, which addresses various issues of interest to art collectors. The newsletter covers such topics as art law, collectors' rights, and reasonably priced available artworks. Art Information Services, Inc., 2000 South Dairy Ashford, Suite 330, Houston, TX 77077; (713) 531-6000; Fax (713) 531-6096.

Asoma Instruments, Inc., demonstrated its Model 652-D PVC Bottle Sorter, an electromechanical system for separating PVC containers from mixed streams of plastic containers. It is designed to sort up to 10 bottles/sec. Asoma also has a line of X-ray fluorescence elemental analyzers. Its 600-Series modular on-stream analyzers monitor additions to feedstock streams by means of a feedback control loop said to provide tight, continuous QC. Asoma Instruments, Inc., 12212-H Technology Blvd., Austin, TX 78727; (512) 258-6608; Fax (512) 331-9123.

Atlan Plastics, Inc., a distributor of thermoplastic resins, described its materials analysis and technical services. The firm offers special packaging, custom color and compounding, and custom grinding. Its [10,000-ft.sup.2] facility in Dallas houses 3 million lbs of engineering resins, wide spec, and regrind, including polyester, polyethylene, polypropylene, polysulfone, PVC, acetal, and acrylic. Atlan ships from warehouse in locations such as El Paso, Tex.; St. Louis; Indianapolis; and Memphis, Tenn. The firm's brokerage department uses an extensive database to help locate materials for customers. Atlan Plastics, Inc., Thermoplastic Resin, 13911 Distribution Way, Dallas, TX 75234; (214) 484-1661; (800) 527-0445; Fax (214) 484-1726; TWX (910) 350-7307.

Atlas Electric Devices Co. featured a CS-245 Melt Elasticity Indexer from one of its divisions, Custom Scientific Instruments. Atlas's line of environmental and materials testing instrumentation also includes the Ci35A Xenon Weather-Ometer and Fade-Ometer for weathering and lightfastness testing. Both are said to reproduce the natural elements of light, heat, and moisture with precision, and to achieve faster rates of acceleration because of their high irradiance capabilities and expanded temperature/humidity ranges. Atlas Electric Devices Co., 4114 N. Ravenswood Ave., Chicago, IL 60613; (312) 327-4520; Telex 24-4328; Fax (312) 327-5787.

Automatik Machinery Corp. displayed its recently released IROS 100 FTIR Process Control System. A computer-aided system that features an FTIR spectrometer, the IROS 100 determines the infrared spectrum of a polymer on a minute-to-minute basis during production. The firm also has an ASG-series of strand pelletizers and an ATG 150 E automatic dry pelletizer. Automatik Machinery Corp., 9724-A Southern Pine Blvd., Charlotte, NC 28217; (704) 523-7921; Telex 387056; Fax (704) 527-8271.

Berstorff Corp. illustrated the ZE 180 twin-screw extruder for high-volume compounding, conversion, and reaction applications; the ZE 40, a "new generation twin-screw extruder with side-feed capability for filler and fiber addition"; the ZE 130 twin-screw extruder for applications requiring high volume compounding, continuous reaction, and devolatilization; the Water Ring Pelletizer WRG for energy efficient pelletizing from 50 to 16,000 lbs/hr; the KE single-screw extruder, which has systems to 600 MM for high capacity conversion and specialty applications; and the 5-Roll Polishing Stack Calendar, which is used for direct extrusion of LD/HD-PE boards and has a nominal output of 5000 lbs/hr.

The ZE 40 is said to be unique in featuring high torque, co-rotating intermeshing, and standard and high volume modular design. It is fully wired and piped, and can be economically supplied with feeders, vacuum systems, injections pumps, and the latest in microprocessor controls. Contact Dan Pearce, Berstorff Corp., 8200-A Arrowridge Blvd., P.O. Box 240357, Charlotte, NC 28224; (704) 523-2614; Fax (704) 523-4353; Telex 800 512.

Bohlin Reologi, Inc., introduced its CS-M Controlled Stress Rheometer for polymer melts. The CS-M is specifically designed to measure the viscoelastic properties of molten polymers, and its flexible, PC-compatible software enables the user to make measurements of creep and recovery, oscillation, and stress ramp. The firm also offers File Convert Software, an analytical tool used to convert internal data files from Bohlin instruments to standard ASCII files readable directly from DOS. Bohlin Reologi, Inc., 2540 Route 130, Suite 105, Cranbury, NJ 08512; (609) 655-4447; Fax (609) 655-1475.

BP Performance Polymers, Inc., detailed its Polybond line of extrudable, chemically modified polyolefin additives. Offered in pellet form, Polybond is used as a chemical coupling agent for filled thermoplastic composites; as a nucleating agent for TPO compounds and for film and sheet; as a polymer alloy compatibilizer; and as an adhesive agent for metals and polar substrates. BP Performance Polymers Inc., Newburg Rd., P.O. Box 400, Hackettstown, NJ 07840; (201) 850-7237; (201) 852-1100; TWX (510) 235-2736; Fax (201) 850-7282.

Bran & Luebbe, Inc., illustrated its systems approach to the integration of liquid process modules in various plant environments. The firm designs and builds automated systems that are said to satisfy needs ranging from the metering of a single liquid to the accurate blending of dozens of fluids under complex continuous processing conditions. The Model NJ32 Metering and Blending System, featuring a pulsation dampener, static mixer, and tank, was displayed. Bran & Luebbe, Inc., 1025 Busch Pkwy., Buffalo Grove, IL 60089-4504 (708) 520-0700; Fax (708) 520-0855; cable Branlubbe.

C.W. Brabender Instruments, Inc., exhibited a variety of instruments for measuring, recording, and controlling viscosity, consistency, plasticity, moisture, temperature, and grindability. Its Rheotron-Comp is a universal rheometer that uses steady shear, oscillating shear, and normal stress measurement to measure the rheological properties of many liquid or pasty materials. The firm also offers a line of laboratory mixer/measuring heads and 3/4-in laboratory extruders, a conical twin-screw extruder, a tabletop extruder, and a modular computerized torque rheometer known as the PL-2000. C.W. Brabender Instruments, Inc., 50 E. Wesley St., P.O. Box 2127., S. Hackensack, NJ 07606; (201) 343-8425; Telex 13-4466 Fax (201) 343-0608.

L.J. Broutman & Associates, Ltd., is a materials technology and chemistry consulting firm specializing in polymers, composites, adhesives, construction materials, and chemicals. The firm detailed its broad range of testing and analytical services. Its Polymer Section provides services in the areas of stress analysis and product design, process selection and development, product performance evaluation, failure analysis, and the design of QC programs. The firm also has a composites and adhesives section and a piping products section. L.J. Broutman & Associates, Ltd., Consulting and Testing Services, 3424 South State St., Chicago, IL 60616; (312) 842-4100; Fax (312) 842-3583.

Bunting Magnetics Co. displayed its new Plastics Separation Catalog # 1105, which illustrates the firm's line of magnetic separators, low-profile conveyors, and magnetic hot-stamp bases. The firm now offers a magnetic drawer filter, said to provide better filtering of tramp metal from plastic materials. The product features newly redesigned power balanced magnetic cartridges and an appropriate balance of magnetic reach-out and surface holding power. Bunting Magnetics Co., P.O. Box 468, Newton, KS 67114; (316) 284-2020; Telex 437264; Fax (316) 283-4975.

Buss America, Inc., exhibited its BussKneader Model MDK/E 140B, which alloys and blends a wide range of highly filled, heat sensitive engineering thermoplastics. The kneader, which features multiple feed ports, reportedly can inject liquid directly into the melt mass anywhere in the system and measure temperature along the entire processing length. It has found increasing application in semiconductive formulation for insulation grades of power transmission cable. Buss America, Inc., 2411 United Lane, Elk Grove Village, IL 60007; (708) 595-7474; Fax (708) 350-2717.

Butterworth Publishers displayed issues of its journals Polymer, Composites Manufacturing, High Temperature Technology, and International Journal of Adhesion and Adhesives. Also displayed were reference texts such as Constitutive Equations for Polymer Melts, Materials in Action: Principles and Practice, and NDE Handbook. Butterworth Publishers, 80 Montvale Ave., Stoneham, MA 02180; (617) 438-8464.

BYK-Gardner, Inc., exhibited it micro-gloss series of portable glossmeters, which includes a three-angle reflectometer known as the micro-tri gloss. The micro-glass instruments function as single-angle reflectometers for 20 [degrees], 60 [degrees], or 85 [degrees] specular gloss measurement. They offer a sample measuring mode, which permits single measurements, and a statistic mode, which permits a series of measurements. The firm also offers a Color Machine spectrophotometer that measures gloss and color simultaneously on the same sampling area. The machine can average, store, and recall gloss readings in the same data files used for color values. Also on display were a Spectrogard II spectrophotometer and an XL-211 Hazegard Hazemeter. BYK-Gardner Inc., 2435 Linden Lane, Silver Spring, MD 20910; (301) 495-7150; Fax (301) 585-4067.

Cabot Corp. presented a series of technical reports and other literature concerning properties and applications of its line of Special Carbon Blacks. Technical Report S134 summarizes the principles involved in selecting a suitable grade of Special Black, based on its properties, for a particular end-use. Cabot Corp., Special Black's Division, 950 Winter St., P.O. Box 9073, Waltham, MA 02254; (617) 890-0200; Telex 6817525; Fax (617) 890-7920.

Carolina Color Corp. detailed its color concentrates, dry color products, liquid colorants, and computerized color matching and QC systems. The dry color products are said to allow complete and even dispersion, as well as precise duplication of the original color. The firm's liquid colorants allow automatic metering of colorants, and can be used at a lower letdown ratio than that of conventional colorants. Carolina Color Corp., 913 East Pleasant Run Rd., P.O. Box 425, Lancaster, TX 75146; (214) 227-7986; Fax (214) 227-9261.

CEAST U.S.A., Inc., illustrated its extensive line of physical, chemical, and electrical testing equipment, including the Modular Flow Index (MFI) and the Automatic Fractovis. The MFI measures the melt flow index of thermoplastic materials; its optional moduli allow calculation and statistical evaluation of results from successive measurements. The Automatic Fractovis performs falling-mass impact tests on plate specimens and performs mathematical calculation of data. CEAST U.S.A., P.O. Box 3072, Fort Mill, SC 29715; (803) 548-6093; Fax (803) 548-6092.

Chemineer, Inc., displayed its Kenics Thermogenizer Extrusion Melt Blender, a post-extrusion mixing device designed to provide distributive mixing of additives in the melt stream and to eliminate radial temperature gradients. To accomplish, mixing, a series of stationary helical blades induce flow divisions in the melt stream. The flow splitting combines with axial rotation of the stream to assure continuous transfer of material from the wall to the center of the stream and vice versa. The firm also showed its Kenics Static Mixer Heat Exchangers, said to offer maximum transfer rates even with highly viscous, difficult-to-process materials. Chemineer, Inc., 125 Flagship Dr., North Andover, MA 01845; (508) 687-0101; Fax (508) 687-8500.

CIQA, the Applied Chemistry Researh Center of Saltillo, Mexico, illustrated its Complete Extrusion Simulation (Extrusor) software. Used for simulating the extrusion of a semicrystalline polymer, Extrusor computes pressure and melting profiles and reportedly can interact with the flow curve of a single filament die up to the point of convergence. The system reportedly can develop databases concerning resin properties, extruder geometries, single filament die geometries, operating conditions. Other computational software developed by CIQA includes Extrusion Process Training (Trainex). For more information, contact M.C. Ernesto Lopez De Rivera H., Centro de Investigacion en Quimica Aplicada, Blvd., Enrique Reyna S/N, Saltillo, Coahia, Mexico 25100; (841) 5-30-30 Ext. 191; Fax (841) 5-31-69; Telex 381163.

Cove Four-Slide and Stamping Corp. produces wire-formed components for the injection molding industry. Among the products displayed were bails for plastic containers, hooks for plastic I-V bottles, and stock and custom hanger hooks for garments. The firm also produces wire forms, such as axles, cranks, rods, and linkages, that are used in the manufacture of toys. Cove Four-Slide & Stamping Corp., 195 East Merrick Rd., P.O. Box 272, Freeport, NY 11520; (516) 379-4232; FAx (516) 379-4563.

Cyprus Industrial Minerals illustrated applications for two of its industrial mineral products, a 10% ultrafine talc and Stellar 410, which is a platy talc with high dry brightness and excellent color characteristics for plastic compounds. Adding the Cyprus talc to blends of PET and HDPE is said to exert a compatibilizing effect on the blends, eliminating processing problems and significantly improving tensile modulus and stiffness without adversely affecting other mechanical properties. Stellar 410 is said to provide excellent long-term oven aging properties, and is recommended for plastics applications where good color and brightness are required. Cyprus Industrial Minerals, 9100 East Mineral Circle, Englewood, CO 80112; (800) 525-8252.

D&L Inc., a supplier of mold and die components, outlined a new software tool for designers of plastic injection molds. C/K Mold works directly with CADKEY to automate the design process of plastic injection molds. Reportedly, it can instantly create standard and custom moldbases, and can call up standard mold components from an extensive pattern library. The firm also displayed a series of high tolerance side locks and guide locks that are said to ensure positive guidance between cavities and cores. D&L Inc., 1000 North Rand Rd., Unit 104B, Wauconda, IL 60084; (708) 487-1000; Fax (708) 487-1003.

Data Technical Research, Inc., exhibited its Plastics Management System, said to be fully integrated manufacturing and financial management software system for plastics processors. The system creates parts quotations, bills of materials, and purchase orders, and provides production scheduling, planning of materials requirements, and manufacturing cost analysis. Data Technical Research, Inc., 10601 Theresa Dr., Jacksonville, FL 32216-9990; (904) 641-9433

J.H. Day Co. demonstrated a model of its Taylor-Stiles Bale and Bulk Material Guillotine Cutter, capable of cutting up to 6000 lbs/hr of baled, bundled, or bulk materials. Along with the firm's Taylor-Satiles Guillotine Slab Cutter for cutting plastic slabs, these guillotine cutters can function as part of a continuous scrap reclamation system in which waste is cut, recut, and granulated into uniform particles. The firm also detailed an extensive line of mixing and other size- reduction equipment, including the Day Mark II Processor, ribbon blenders, double-arm mixers, and rotary cutters, slitters, and dicers. J.H. Day Co., 4932 Beech St., Cincinnati, OH 45212-2397; (513) 841-3600; Telex 21 4392; international telex 21 2069; Fax (513) 841-9206.

Delta Manufacturing Co. Inc. showed is line of industrial heating elements, including Mica-Insulated Drum and Pail Heaters, Ceramic-Insulated Band Heaters, and Channel Strip Heaters. The mica-insulated drum and pail heaters, which fit standard 55-gal drums, permit viscous material to flow in cold temperatures. The ceramic band heaters reportedly can be made in large widths and one-piece construction, thus permitting easy installation and eliminating heat losses between narrow bands. Delta Manufacturing Co. Inc., P.O. Box 9889, Tulsa, OK 74157; (800) 223-4328 or (918) 224-6755; Fax (918) 244-6866.

Draiswerke, Inc., highlighted its Gelimat System, a machine said to provide ultrahigh speed thermokinetic mixing, compounding, and fluxing. The Gelimat consists of a horizontally positioned mixing and compounding chamber with a central rotating shaft and staggered mixing blades mounted at various angles. Extremely high blade-tip speeds bring polymers close to their melting points within seconds, resulting in shorter production cycles. The firm also offers a Horizontal Turbulent Mixer and a Perl Mill System for wet grinding and dispersing. Draiswerke, Inc., 3 Pearl Court, Allendale, NJ 07401; (201) 327-3151; Fax (201) 327-9464.

R. Dray Mfg. Inc. exhibited a historical representation of technological advances in the field of extruder screw design. The exhibit featured drawings of designs invented by R.F. Dray, including the first design to establish the melt film in the auxiliary channel independent of the primary channel; the first design to utilize reverse flow to improve heat transfer and residence time; and the first design to internally adjust pressure through a movable restrictor in the screw channel. The display also outlined the firm's services in the areas of screw design, manufacturing, repair process evaluation, and laboratory testing. The firm says it manufactures extrusion screws to any configuration and can test customers' materials on its extruding, drying, and pelletizing equipment. R. Dray Mfg., Inc., of Texas, 1121 108th St., Arlington, TX 76011; (817) 649-2247; (817) 649-2248; Fax (817) 633-2140.

Du Pont Co. featured its Thermal Analyst 2000/2100 System. The Thermal Analyst 2000 is based on the IBM Personal System/2, Model 50Z computer. It offers a large software library for thermal analysis, and can run an experiment and collect data while processing data from a previous experiment. The 2100 can run up to four modules simultaneously from a single controller. Both the 2000 and the 2100 can be combined with a wide range of Du Pont materials characterization modules, including several DSCs, TMAs, and DEAs. Du Pont Co., Instrument Systems, Concord Plaza, Quillen Building, Wilmington, DE 19898; (302) 695-5488; (302) 695-5500; Telex 6503386604; Fax (302) 695-5463.

Dynatup/General Research Corp. showed its Model 8250 Drop Weight Impact Test Machine, which can be used to evaluate material composition and processing, as well as finished component design, of polymers and composites. The model performs up to 100 impact tests per hour. The firm also showed its new Autoloader, an automated impact test machine that incorporates all of the features of the Model 8250 and can condition and test samples over a temperature range of -60 [degrees] F to 300 [degrees] F. Dynatup offers an 830 -1 Data Acquisition System, which can be used with both machines and most pendulum impact test machines. Dynatup/General Research Corp., 111 Castilian Dr., Santa Barbara, CA93117-3093; (805) 685-2772; Fax (805) 685-9638.

In addition to detailing its line of pressure and temperature instrumentation used in extrusion and injection molding, Dynisco introduced its Model [mu]PR690 microprocessor-based pressure indicator. The [mu]PR690 is a flexible, multifunction indicator for 350-ohm strain gage-based sensors such as pressure transducers and load cells. It can be programmed to display engineering units up to 99,999 with resolution to better than 0.05%. The firm offers an extensive series of melt pressure transducers, transmitters, and gages, as well as direct and indirect cavity pressure transducers. Its line of PT460XL melt pressure transducers now includes pressure ranges below 10,000 psi. Dynisco, Four Commercial St., Sharon, MA 02067; (617) 784-8400; (800) 221-2201; Telex 174292; Fax (617) 784-2902.

Engelhard Corp. highlighted its line of Ultralink PA-100 and Translink kaolin-based reinforcements, and brought out a line of eleven Thermobrite cadmium pigments. Ultralink reinforcements are designed to improve the Gardner impact strength of nylon composites; Translink products reportedly enhance the toughness of a variety of polymer systems including nylon, polyalloys, urethanes, and thermosets. The Thermobrite pigments, which consists of five yellows and six reds, are said to provide exceptionally clean, bright, and intense colors. Their visual color spacing is reportedly such that adjacent colors may be blended without losing brightness. Also presented were a series of Meteor Plus mixed metal oxide pigments, said to offer superior dispersion and opacity and to be well suited for use in coloring architectural plastics such as rigid PVC for vinyl siding. Engelhard Corp., Performance Minerals Group Menlo Park, CN 28, Edison, NJ 08818; (201) 321-5000.

The SPE Extrusion Division provided a "consultants' corner" for Division members and exhibited ANTECEXT, the Division's database of ANTEC papers dating back to 1956. The database is available in 5-1/4- or 3-1/2-in disks and may be run on an IBM-compatible computer with Professional File Software. For more information, contact SPE ANTEC Database, c/o Eldridge M. Mount III, 88 Country Downs Circle. Fairport, NY 14450; (315) 986-5056.

The filterless Hurricane Hopper Loader offered by Filterless Conveying Systems is a quasi-closed-loop system particularly suited for transporting dried hygroscopic materials. It is said to feature superior separating action that eliminates the need for filtration. The system can be used for conveying thermoset powders, filled exotic regrinds, linear low-density powders, and PVC powder. The firm also offers a line of additive-feeding systems, including the MBM Color Feeder series, which computes and regulates the amount of color going into the cycle of an injection molding machine. Filterless Conveying Systems., 51-3 Woodyatt Drive, Brantford, Ontario, Canada N3R 7K3; (519) 754-4077; Fax (519) 754-4079.

Firestone Synthetic Rubber and Latex Co. featured its Stereon series of impact modifiers and injection molding resins. The series includes Stereons 720A and 730A, used as impact modifiers for polystyrene, ABS, and engineering resins; 840A, an impact modifier for HIPS and polyolefins as well as a base polymer for hot melt and pressure-sensitive adhesives; and 881, a clear injection molding resin for food packaging and medical applications. The company also markets a line of Diene impact modifiers and NF polymers, Hartex natural latex, and Duradene solution SBR polymers. Firestone Synthetic Rubber and Latex Co., P.O. Box 26611, Akron, OH 44319-0006; (216) 379-6538.

Flow Vision, Inc., introduced its Pellet Defect Qualifier (PDQ), an automated optical inspection system said to ensure more accurate grading of resin pellets. The system uses real-time image analysis to detect contaminated and discolored pellets. A laboratory version of the system provides high resolution and can categorize defects by size; the production model accommodates throughputs of up to 50 lbs/hr. The firm also exhibited its PED on-line image analyzer and its Advisor series of on-line surface inspection systems for plastic film and sheet processing. Flow Vision, Inc., 4 Peckman Rd., Little Falls, NJ 07424; (201) 785-3636; Fax (201) 785-8075.

Fortune Personnel Consultants of Houston, Inc., offered information on its recruitment and placement services for plastics professionals and executives. The firm offers consulting services relative to engineering resins, olefins, and many types of materials and equipment. Fortune Personnel Consultants of Houston, Inc., 10555 Northwest Freeway, Suite 107, Houston, TX 77092; (713) 680-9132.

Forward Technology Industries, Inc., presented its line of plastics bonding equipment, which includes Mecasonic and Ultrasonic Welders, Spin Welders, and Hydra Sealer Hot-Plate Welders. In addition to its equipment, the firm offers engineering support, weld capability and tensile testing, and joint-design consultation. Forward Technology Industries, Inc., 13500 County Road 6, Minneapolis, MN 55441; (612) 559-1785; Fax (612) 559-3929.

GE Specialty Chemicals presented a new developmental phosphite antioxidant, XR-633, which is said to offer excellent stabilizing activity for polyamides, nylons, and polyolefins, including those made from high activity catalysts. A high melting solid with a high phosphorus content, XR-633 is designed to offer maximum hydrolysis resistance, yet excellent melt flow and color stabilizing performance.

The firm illustrated the role that its phosphite antioxidant Ultranox 626 plays in protecting recycled polymers from oxidative and thermal degradation during compounding and pelletizing. GE Specialty Chemicals, Fifth and Avery Streets, Parkersburg, WV 26102; (304) 424-5411.

Genca Division Mini Tri-Die Model 1 extrusion crosshead, used in medical grade tubing, can reportedly extrude up to three concentric layers of the same or compatible materials at one time. It is said to adapt to any extruder size up to 2 inches in diameter, and to easily convert from triple layer extrusion to single, double, or multiple striping. Genca also offers a B-1 Series of Lovol Fixed or Adjustable Center Crossheads for wire and cable as well as medical grade tubing applications; a "K" Series of Adjustable Center Crossheads for applications in wire and cable, tubing, hose, and profiles; and a Lovol Series of Fixed Center Crossheads for telecommunications and automotive wire applications. Genca Division, 4850 Ulmerton Rd., Clearwater, FL 34622; (813) 573-4622; 800-273-5448; Telex 52-3464; Fax (813) 573-1604.

Goettfert Inc.'s Mi-Robo testing system is an automated system for determining MFI and MVI of PE, PP, PS, and other materials specified in ASTM D 1238. A material sampling module enables the sample carousel to support up to 30 samples; the system also features optional system cleaning and die-changing modules, which automatically clean the piston and barrel after testing and insert a clean die, respectively. Geottfert also offers two on-line capillary rheometers for continuous measurement of melt viscosity and melt index: the Bypass Rheograph, maintenance of which is said to be extremely easy; and the Real Time Rheometer, which features short residence times. Goettfert Inc., 488 Lakeshore Pkwy., Rock Hill, SC 29730; (803) 324-3883; Fax (803) 324-3993.

Goodyear Tire & Rubber Co. detailed its Chemigum P83/PVC TPEs for automotive and industrial applications. These TPEs are blends of a pre-crosslinked NBR powder with PVC, plasticizers, fillers, stabilizers, and pigments; they are said to exhibit exceptional melt strength and bondability to glass, metals, and plastics. Their automotive applications include horn pad and armrest covers, weatherstrip lip seals, and gear level bellows. Goodyear Tire & Rubber Co., 1485 East Archwood Ave., Akron, OH 44316; (216) 796-4979.

The Rheodrive System offered by Haake Buchler Instruments, Inc., is said to be compatible with single-crew extruders for small-scale production and sample preparation; with mixers for batch production; and with twin-screw extruders for continuous compounding. It can also measure torque and melt temperature and provide pressure readouts. The firm's Rheocord 90 torque rheometer evaluates the flow properties of a variety of thermoplastics, including polyolefins, styrenes, and acrylics; engineering thermoplastics; and thermosetting resins. Maximum operating temperature is 500 [degrees] C; its interchangeable load cells allow the user to select torque ranges for optimum sensitivity and resolution. Haake Buchler Instruments, Inc., 244 Saddle River Rd., Saddle Brook, NJ 07662-6001; (201) 843-2320; (800) 631-1369.

The C.P. Hall Co. illustrated its line of Paraplex and Plasthall polymeric plastimcizers, which are designed to provide flexibility, softness, and lower modulus values in PVC applications. The plasticizers reportedly exhibit more stability under extended high heat conditions than do monomeric plasticizers, and are resistant to extraction by solvents, oils, and fluids. The firm also offers an extensive line of esters used in adhesives, coatings, and lubricants. The C.P. Hall Co., 7300 South Central Ave., Chicago, IL 60638; (312) 767-4600; Fax (312) 458-0428.

Heat Energy Advanced Technology, Inc., offers fuel blending and solvent recycling as an alternative to disposal of hazardous wastes. The firm blends waste materials into liquid and solid fuels for burning in cement kilns; solvents are recycled by simple distillation. Recycling the heat energy value of the waste materials is said to qualify as waste minimization for reporting purposes. Solid fuels accepted include plastics, filters, and poly drums; the firm also accepts paint thinners, oils, inks, and grease. Heat Energy Advanced Technology, 4460 Singleton Blvd., Dallas, TX 75212-3498; (214) 637-6434; Fax (214) 637-6453.

High-Technology Corp. offers a line of continuous, solid-state screen changers for use in extrusion. These devices, which have no moving parts, use the force of the extruder head pressure to move the screen. They are said to maintain steady extruder head pressures and melt temperatures by eliminating all fluctuations commonly associated with conventional slide-plate and other intermittently operating extruders. High-Technology Corp., 144 South St., Hackensack, NJ 07601; (201) 488-0010;Fax (201) 488-4318;Telex 134631.

Hitox Corp. of America detailed its line of pigments and pigment extenders, including Hitox Buff Titanium Dioxide, Bartex Barium Sulfates, and OSO Iron Oxides. Hitox is a buff-colored, 95%-rutile alternative to white titanium dioxide; it imparts opacity and helps protect paints and plastics from degradation by UV light. Its applications include PVC pipe and conduit, color concentrates, and vinyl siding. Bartex is an inert extender pigment that is also used as a filler in plastics applications. OSO iron oxides are suited for applications that require rigid raw material specifications; they reportedly offer good suspension and stabilization properties. Hitox Corp. of America, P.O. Box 2544,418 People St., Corpus Christi, TX 78403-2544; (512) 882-5175; Fax (512) 882-6948; Telex 76-7533.

Holometrix, Inc., featured its Model TCA automated Thermal Conductivity Analyzer and its Model QTA Quantitave Thermal Analyzer. The TCA measures thermal conductivity in solid and nonsolid materials by the guarded heat flow meter method: A sensitive transducer measures the amount of heat passing through a sample under carefully controlled conditions. A special cell is used to test materials through the melt and to test nonsolids, such as viscous liquids, pastes, and greases. The QTA is an automated adiabatic calorimeter instrument designed to measure the specific heat and enthalpy of solid and nonsolid samples of up to 100 ml in volume. The firm offers many other testing instruments, including the Permalyzer 2000 for measuring gas permeability of cellular plastics, and the Thermaflash 2200 for determining thermal properties of materials up to 2000 [degrees]. Holometrix, Inc., Thermatest Instruments Division, 99 Erie St., Cambridge, MA 02139; (617) 868-8050; Fax (617) 354-3902; Telex 92-1483.

Hunkar Laboratories Inc. featured its CIM-1 Version 2 plastics process control package. The package is a comprehensive computer-integrated manufacturing program that simplifies SPC and provides physical measurements interfacing for over 2000 gages and scales. Also featured was a Programmable Data Acquisition Terminal (P-DAT), which can be used to monitor various processes in a plastics manufacturing plant. It enables the user to tie upstream and downstream processes into its network. Hunkar Laboratories Inc., 7007 Valley Ave., Cincinnati, OH 45244; (513) 272-1010; Fax (513) 272-0013.

HunterLab illustrated its range of color and appearance measuring systems, which includes colorimeters, spectrocolorimeters, and glossmeters. Its UltraScan Spectrocolorimeter can measure haze and analyze UV-induced fuorescence and near-IR for camouflage materials. Its Halon sphere coating is said to provide superior reflectance and resistance to degradation. The firm also offers a Dorigon Abridged Goniophotometer for measuring distinctness of image of metallic and nonmetallic surfaces. HunterLab, 11491 Sunset Hills Rd., Reston, VA 22090; (703) 471-4237.

ICI Advanced Materials detailed its line of Verton Long Glass Fiber Reinforced Nylon 6/6 Composites. These composites are said to offer optimum mechanical and thermal properties at ambient and elevated temperatures. The long fiber reinforcement promotes improved stiffness, strength, and impact resistance, suiting the materials for demanding structural applications in the automotive and office equipment markets. ICI also offers a series of Maranyl nylon composites. ICI Advanced Materials, 475 Creamery Way, Exton, PA 19341; (215) 363-4500.

Infodex demonstrated CenBASE/Materials 1990, a database containing applications information and engineering specifications relative to more than

15,000 materials. The database has a standardized format, said to permit easy comparison of thermoplastics, thermosets, and elastomers. Infodex, CenBASE/Materials, John Wiley & Sons, Inc., 605 Third Ave., New York, NY 10158; (212) 850-6361; Fax (212) 850-6088.

Instron Corp. displayed its High-Resolution Digital (HRD) Automated Extensometer, which provides automated measurement of short- and long-travel axial strain and transverse strain for plastic materials. The HRD extensometer uses an air-bearing carriage guidance system for high accuracy and low operating force. Also featured were the Model 4301 Quality Control Testing Instrument

PHOTO : The Computrac TMX moisture analyzer eliminates splay and brittleness while measuring low levels of moisture. Arizona Corp.

PHOTO : The ZE 40 Twin-Screw Extruder features 50-hp high-torque drive and side-feed technology for adding fillers nd fibers. Bertorff Corp.

PHOTO : The Magnetic Drawer Filter now has extra metal around the slide gate for increased strength and torsional rigidity. Bunting Magnetic Co.

PHOTO : Cutaway view of the Mark II Conical Mixer shows its screw agitator, which spirals ingredients in upward and downward flows, J.H. Day Co.

PHOTO : The Model [mu]PR690 pressure indicator incorporates a digital and an analog bar graph display. Dynisco, Inc.

PHOTO : The model 4301 Quality Control Testing Instrument has an optional IEEE-48 interface for computer compatibility. Instron Corp. and the Series IX software. The Model 4301 has tension- and compression-testing modes that are said to be ideal for testing plastics and elastomerics; the Series IX software features a LabVantage DB for SPC/SQC. Instron Corp., 100 Royall St., Canton, MA 02021;(617) 828-2500; Telex 924434; Fax (617) 828-2112.

International Plastics Selector exhibited its reference sources containing information on a wide range of thermoplastics, thermosets, adhesives, sealants, and other materials. The sources include a Selector dababase, which enables the user to reference materials by name, manufacturer, properties, or polymer type; and a series of D.A.T.A. Digest publications. International Plastics Selector, 8977 Activity Rd., San Diego, CA 92126; (619) 578-7600; (800) 447-4666; Fax (619) 530-0637.

K & K Technologies, Inc., illustrated its line of Vestoran plastic-rubber composites and modified polyphenylene ethers. Vestoran moldings are said to be dimensionally stable and to resist hydrolysis; they reportedly have less tendency to shrink or warp. Their applications include parts with large surface areas in the automotive engineering and office equipment industries. The firm offers a rubber-plastic composite molding machine, Tech 700, for molding Vestoran and thermoset rubber in one process, K & K Technologies, 685 Medina Rd., P.O. Box 13200, Akron, OH 44313; (216) 239-1174; Fax (216) 239-1314.

K-Tron Vertech brought out its new Graviblend weighblender that now handles up to eight components and can store up to 99 blend recipes. The system controls hard-to-handle materials, such as floodable and cohesive powders, by incorporating twin-screw feeder technology. The firm has also introduced an integrated refill system for the new weighblender. The refill system can be configured for modules of one to eight ingredients. K-Tron Vertech, c/o Performark, Inc., 8200 Highwood Dr., Minneapolis, MN 55438-9981.

The Galaxy I Melt Flow Indexers offered by Kayeness Inc. permit instantaneous flow rate and viscosity calculation; pneumatic weight-lift automation; and temperature control within 0.1 [degrees] C. The advanced models 7053 and 7054 are said to provide statistical packages for up to 20 separate SQC and SPC programs, and printouts of rheological data such as flow rate, viscosity, and shear stress. The firm also offers a Galaxy IV Capillary Rheometer that can use up to nine shear-rate or shear-stress increments to detect material variations. Kayeness Inc., R.D. 3, Box 30, Honeybrook, PA 19344; (215) 273-3711; Fax (215) 273-2682.

Kenrich Petrochemicals, Inc., featured its line of Ken-React organometallic titanate, zirconate, and aluminate coupling agents. The firm reported results of tests in which the coupling agents were shown to achieve improvements of up to 40% in cycle times, and in some cases enhancing mechanical properties, of blowmolded, injection molded, and extruded thermoplastics. The faster productivity rates were reportedly achieved at up to 10% reductions in process temperatures. The firm also displayed a selection of foamed thermoplastic parts possessing specific gravities and properties equal to those of unfilled plastics. Kenrich Petrochemicals, Inc., 140 East 22nd St., Bayonne, NJ 07002-0032; (201) 823-9000; (800) LICA KPI; Telex 12-5023; Fax (201) 823-0691.

Killion Extruders, Inc., detailed its series of Servo-Drive cutters and belt pullers, which have found increasing application in the extrusion of tubing and profiles. The cutters and pullers feature absolute speed control, which is said to be ideally suited for small-diameter, thin-wall tubing. The firm also exhibited its line of single-screw extrusion equipment. Killion Extruders, Inc., 200 Commerce Rd., Cedar Grove, NJ 07009; (201) 239-0200; Telex 133560; Fax (201) 239-3061.

Kistler Instrument Corp. displayed an array of pressure and force transducers for measuring cavity, runner, barrel, and hydraulic pressures. The transducers have associated-charge amplifiers and reportedly can be tied into any microprocessor control or SPC/SQC system to monitor or control an injection molding machine. New products displayed include the Model 6159A direct in-cavity transducer, which is said to have a sensing diameter of 2.5 mm and very long life expectancy; and the Controller Model 5090, which reportedly increases the efficiency of a relay-controlled injection molding machine without the use of an expensive microprocessor controller. Kistler Instrument Corp., 75 John Glenn Dr., Amherst, NY 14120-5091; (716) 691-5100; Fax (716) 691-5226.

Koch Engineering Company Inc. featured its Koch Mixing Head, which is said to correct temperature gradients as well as color and additive distribution during injection molding. It homogenizes melt streams with its intense low-shear mixing action by separating and recombining the melt and folding layers of the melt into one another. The mixing head features very low pressure drop and a new mixing head filter. Koch Engineering Company, Inc., 4111 E. 37th St. North, P.O. Box 8127, Wichita, KS 67208-0127; (316) 832-5110.

Labor World USA, Inc., outlined its temporary employment services relative to the plastics industry. The firm places personnel, such as injection molding machine and extruder operators, and offers employee leasing and payrolling systems. Labor World USA, Inc., 5455 N. Federal Hwy., Suite E, Boca Raton, FL 33487; (407) 994-9255; Fax (407) 994-3128.

Lloyd Instruments, Inc., illustrated some of the materials testing equipment that it offers for use in R&D and QC. The equipment is said to be suitable for a range of composites and other plastic products. Lloyd Instruments, Inc., 290B Hansen Access Rd., King of Prussia, PA 19406; (215) 337-8100; (215) 337-8131.

Luwa Corp. featured a gravimetric extrusion system that employs a fundamental loss-in-weight principle to continuously monitor input and control output. Its Buhl PPC6020 computer is said to provide flexibility and precision. The firm also highlighted its Expac cart-mounted extrusion pumping system. This gear pump/extruder combination is said to eliminate surging and improve gage control, and to increase production rates and reduce extrudate temperature. Luwa Corp., Fluid Systems Division, P.O. Box 16348, Charlotte, NC 28297-6348; (704) 394-8341; Fax (704) 393-8590.

Macbeth Division of Kollmorgen Instrument Corp. featured its SpectraLight Color Matching Booths and Luminaires, which provide a controlled viewing environment for color matching. They allow the viewer to evaluate color under North Sky Daylight, Cool White Fluorescent, Horizon Sunlight, and Ultraviolet; they feature a stable quartz halogen-illuminating system. The firm also illustrated the Munsell System of Color Notation, which uses hue, value, and chroma to provide an exacting system of color communication; and Optimatch and Optiview software for color quality control and formulation. Macbeth, Division of Kollmorgen Instruments Corp., P.O. Box 230, Little Britain Rd., Newburgh, NY 12550; (914) 565-7660; Fax (914) 561-0267.

The Mearl Corp. offers a broad line of Pearlescent and Iridescent Luster Pigments and Iridescent Colors for applications including packaging and automotive paint finishes. The pigments promise easy dispersal into most plastic resins and coating and ink systems. They can be combined with transparent colorants and dyes to create many nuances of shade, tint, or texture. The Mearl Corp., 41 East 42nd St., New York, NY 10017; (212) 573-8500; Fax (212) 557-0495.

CURE (Color Uniformity Recognition Equipment), offered by Megatronics, Inc., is a system of color and appearance measurement that not only determines color values of individual objects, but compares and matches the colors of multiple objects. It can compute color difference percentages and is said to be especially suited for measurement of pellets, powders, or plastic injection molded products that are not easily measured with conventional equipment. Megatronics, Inc. 2680 Horizon Dr. S.E., Suite A-1, Grand Rapids, MI 49546; (800) 937-3077; (616) 942-0909; Fax (616) 942-7269.

Mettler Instrument Corp. showed its new TA72.5 Graph Ware, Ceramic Sensor, and Hot Stage FP800HT Thermosystem for combined DSC/FT-IR. The TA72.5 is said to add real-time multi-tasking and two simultaneous on-line displays to the firm's TA4000 Thermal Analysis System. The new ceramic sensor is a high output, high resolution instrument for the system's DSC25 measuring cell; it reportedly features a wide temperature range and outstanding test stability. The Hot Stage FP 800HT Thermosystem permits microscopic observation during DSC and the recently introduced FT-IR/DSC combination. Mettler Instrument Corp., Box 71, Hightstown, NJ 08520-0071; (800) METTLER; (609) 448-3000; Telex MICO 7607376.

Migrandy Corp. outlined its precision engineering services, which include designing, modifying, and rebuilding screws, barrels, and other replaceable components of the injection molding and extrusion processes. The firm also develops hard-surfacing alloys designed to increase screw life. It recently developed the Migrandy LL surfacing process, which reportedly increases production output while reducing power consumption. Migrandy Corp., 675 Cypress Dr., Merritt Island, FL 32952; (800) 327-0943; (407) 459-0044; Fax (407) 459-2641.

The Color Mate RT, offered by Milton Roy Co.'s Diano Color Products Group, is a real-time color measurement system that allows up to 30 on-line measurements per minute of opaque solid or fluid samples in a process environment. The system is based on the IBM PS/2 and uses custom-designed SPC software to monitor and graphically display colorimetric characteristics.

The firm also offers the Color Mate HDS, a spectrophotometer that reportedly can store thousands of color standards and tolerances; the Color Mate HDS quality control package; and the Match Pak II color formulation software. Milton Roy Co., Analytical Products Division, Dept. 6682, 820 Linden Ave., Rochester, NY 14625; (716) 248-4086.

Mold Base Industries, Inc., offers custom-built standard mold bases and mold components such as plates and ejector pins. The firm custom finishes mold bases from pre-roughed plates and will alter dimensional locations such as leader pins and bushings, assembly screws and dowels, and center holes. Its services include extensive computer controlled machining of such items as taper locks, cavity fastening screws, runners, and manifolds. Mold Base Industries, Inc., 7501 Derry St., Harrisburg, PA 17111; (800) 241-6655; (800) 241-6656; Fax (517) 564-2250.

The Bee Injecta Color System displayed by Morton Thiokol, Inc., is a system of liquid additives used in conjunction with the Micro 86 metering pump for injection molding, blowmolding, and extrusion of thermoplastics. The colorants are said to be compatible with a wide range of resins, including PE, PP, and PVC. The system reportedly permits improved resin flow. The firm's highly loaded liquid pigment systems and line of high-volume solid and liquid colorants have wide application in the automotive, packaging, toy, and construction markets. Morton Thiokol, Inc., Bee Chemical Co., 385 East Joe Orr Rd., Chicago Heights, IL 60411; (312) 758-0500; Fax (312) 757-3735.

Mouldexport of Portugal illustrated its molding and moldmaking services. The firm manufactures molds ranging in size from the very small to 30 tons, and exports a large percentage of them to North American markets. These markets include housewares, small automotive parts, construction, and toys. Mouldexport, P.O. Box 204, Guarda Nova, 2432 Marinha Grande Codex, Portugal; Phone (44) 568800; Telex 12919 MOBASE P; Fax (44) 566749.

Multitherm Corp. detailed its PG-1 Heat Transfer Fluid, a food additive-grade fluid that reportedly provides excellent heat transfer and flows with low horse-power consumption. Said to be nonfouling and nontoxic, it is certified by the FDA and USDA for use with food and pharmaceuticals. The firm also offers an IG-2 Heat Transfer Fluid and a Multitherm 100 Flushing Fluid. Multitherm Corp., 125 South Front St., Colwyn, PA 19023; (215) 461-6442; (800) 225-7440.

Nametre Co. exhibited its Model 1810 Series Viscoliner, a torsion oscillation viscometer designed for measurement in manufacturing and blending processes. The instrument features microprocessor control and automatic temperature compensation. Also illustrated were the 2010 Series Viscoliner and the Model 2000 Series Rheometer, which features temperature and density compensation. Nametre Co., 101 Forrest St., Metuchen, NJ 08840; (201) 494-2422; Fax (201) 494-8916.

The National Association of Corrosion Engineers, an international technical association devoted to the protection and performance of materials in corrosive environments, offered information on its services and publications. NACE publishes Materials Performance, a monthly magazine for engineers and other professionals involved in the prevention and control of corrosion, and Corrosion, a technical research journal. NACE, 1440 South Creek Dr., Houston, TX 77084; (713) 492-0535.

National Feedscrew & Machining Inc., which manufactures and rebuilds feedscrews and related equipment, featured samples of its product line, including a 12-in feedscrew nosepiece, feedscrew segments, and a 20:1 L/D vented barrel. The vented barrel is machined to minimize side-wall seepage and features a vent chute that prevents escaped material from contacting the barrel, heaters, and heater wiring. National Feedscrew & Machining, Inc., 577 Oberlin Rd., SW, Massillon, OH 44646; (216) 837-3868.

National Tool & Manufacturing Co. illustrated its Modular Runnerless Injection Molding System, which reportedly minimizes heat loss, prevents leakage, and features excellent gate vestige. Also on exhibit were a guided bar ejection system, designed to take the place of leader pins and bushings, and a line of cooling components and accessories for injection molds and die-casting dies. National Tool & Manufacturing Co., 100-124 North 12th St., Kenilworth, NJ 07033; (201) 276-1600; (800) 223-0926; Fax (201) 276-8616.

Products highlighted by Netzsch Inc. include the dilatometer TMA 402 and the DSC 200. The TMA 402 is a thermomechanical analyzer of vertical design; its differential element is said to permit simultaneous measurements and recording of the derivative of the length change as a function of time. It also features

an extension for dynamic elasticity measurements. The DSC 200 features a heat flux sensor that reportedly ensures a homogeneous heat flux and stable baseline. The firm's thermal analysis equipment also includes instruments that perform thermogravimetry and gas analysis. Netzsch Inc., 119 Pickering Way, Exton, PA 19341; (215) 363-8010.

Newbury Industries, Inc., featured its line of mono-toggle-clamp injection molding machines. The machines offer microprocessor controls and proportional hydraulics; they reportedly provide faster cycles than double-toggle machines, and their in-line clamping pressure is said to yield better mold alignment and less flash. Models range in size from 60 to 200 tons. The firm also featured its Vertical-Clamp Insert-Molding Machines, available in six models ranging from 30 to 200 tons. Newbury's extensive line of IM machines encompasses various other vertical- and horizontal-clamp, as well as automatic and reciprocating screw models. Newbury Industries, Inc., 10975 Kinsman Rd., Newbury, OH 44065; (216) 564-2285; Fax (216) 564-7152.

The manufacturers' representative Newby & Associates, Inc., illustrated an array of products including mold frames, companion inserts, and heat pipes from Master Unit Die; static eliminators, components, and systems from Herbert Products, Inc.; ASTM Test Molds from Master Precision Molds; material reduction systems from Shred-Tech; a mold-and tool-surface conditioner from Armorclad; and negative-pressure circulators, systems, and manifolds from Logic Devices. Newby & Associates, 5950 Cedar Springs #210, Dallas, TX 75235; (214) 357-8354.

The Extrusion Gear-Pump System offered by Normag Corp. combines precision-engineered gear pumps, control systems, and pump-drive systems. The gear pumps reportedly reduce pressure on the extruder, thus lowering the melt temperature, and are said to accurately meter the polymer from the extruder to the die assembly. The pump-drive systems maintain a uniform gear speed, which is necessary for accurate output. Normag also offers an AutoProbe System, a motor-driven retractable melt thermocouple that drives the measuring probe across the melt stream while displaying the temperature and position of the melt. Normag Corp., P.O. Box 6010, Hickory, NC 28603; (704) 495-4613; Fax (704) 495-4280.

O/K International Corp. featured its line of Axon Mini-Extruders, which are used for producing mini-scale products such as medical tubing. The machines are said to save production time and reduce consumption of raw materials. They can be equipped with D/C-motor variable screw-speed drive instead of mechanical variable screw-speed drive. Other uses include compounding, pelletizing, and recycling; film blowing; and sheet extrusion. O/K International Corp., 302 Boston Post Rd., Wayland, MA 01778; (508) 358-5137; Fax (508) 358-5138; Telex 469605.

Olympus Corp.'s line of Remote Visual Inspection Systems includes fiberscopes and borescopes with interchangeable tips and four-way articulation. These internal-inspection instruments are said to require a minimum of disassembly; the firm's line of small-diameter borescopes and fiberscopes reportedly permit visual inspection through openings as small as 0.9 mm. Olympus also carries a range of rigid borescopes, light sources, and photographic accessories. Olympus Corp., Industrial Fiberoptics Division, 4 Nevada Dr., Lake Success, NY 11042; (516) 488-5888; Fax (516) 222-0878; (800) 446-5260.

Oxford University Press/Hanser Publishers displayed books on topics relating to plastics. The selection encompassed issues such as processing, polymer chemistry, and moldmaking. Oxford University Press, Exhibits Department, 200 Madison Ave., New York, NY 10016; (212) 679-7300.

Pfizer Inc., Specialty Minerals Group, featured its line of talc and calcium carbonate fillers for high performance polymer applications. The talc fillers include Microtuff, a fine-coated product used to improve the balance between impact strength and stiffness in PP parts; and ABT-2500, a platy Montana Talc said to be an effective antiblocking agent in polyolefin films. The firm exhibited rigid PVC parts in which Ultra-Pflex, an ultra-fine, precipitated calcium carbonate, was used to improve impact strength and weatherability. Pfizer Inc., Specialty Minerals Group, 640 North 13th St., Easton, PA 18042; (215) 250-7000, Ext. 3049; Fax (215) 250-9514.

PL Thermal Sciences displayed its PL-DMTA Dynamic Mechanical Thermal Analyzer and its PL-TGA Thermogravimetric Analyzer. The PL-DMTA measures dynamic modulus and damping in the bending, shear, tensile, and torsion modes. Its sample types include polymers, blends, coatings, composites, and single fibers. The firm's new PLus V Software package enables the user to super-impose data from the DMTA onto data from other thermal analysis methods, for purposes of comparison. The PL-TGA contains a built-in gas flowmeter and fixed-plate thermocouple; it is said to be ideally suited for analysis of effluent gas by FTIR and mass spectroscopy. PL Thermal Sciences, 300 Washington Blvd., Mundelein, IL 60060; (708) 566-6664; Fax (708) 566-6697.

Plascom Trading Co., a buyer and reseller of industrial scrap plastics, displayed samples of recycled resins including HIPS black, PET regrind, and Nylon 6/6 gray. The firm weighs and inspects for contamination all materials that pass through its warehouse. It trades material throughout the U.S. and internationally. Plascom Trading Co., 1800 East State St., Trenton, NJ 08609; (609) 394-6674; Fax (609) 587-3328.

Plaslok Corp., a manufacturer of thermoset molding compounds, exhibited data demonstrating the attractiveness of phenolic as a molding compound. The firm advanced tables showing measures such as the compound's yield temperature under load; coefficient of thermal expansion; and cost per cubic inch. Phenolic was reported to retain or improve upon the physical properties of thermoplastics and metals. Plaslok Corp., 3155 Broadway, Buffalo, NY 14227; (716) 681-7755; (800) 828-7913; Fax (716) 681-9142.

Plasma Science, Inc.'s gas plasma surface treatment system is said to be a fast, safe, and less costly alternative to traditional surface treatment methods. It promotes bonding and wetting in plastics, and has been used to increase adhesion between the polyacetal spring and the polyurethane foam flesh of an artificial foot. Both the PS 0500 Model and the PS 1010 Model perform this surface treatment. Plasma Science, Inc., 272 Harbor Blvd., Belmont, CA 94002; (415) 598-9300; Fax (415) 591-1915.

Plastics & Computer Inc. showed its TMconcept molding software, which is a coordinated group of software programs for injection molding. The software includes programs for materials selection, shrinkage evaluation, molding and cost optimization, and flow analysis. It reportedly can be integrated easily with software such as CAD, structural analysis, process control, and mold design. Plastics & Computer Inc. 164 Watchung Ave., Montclair, NJ 07043; (201) 744-8855; Fax (201) 744-0735.

Plastics News, a weekly newspaper for the plastics industry, exhibited sample copies of the publication and presented information on advertising rates, subscriptions, and circulation. Plastics News, 1725 Merriman Rd., Akron, OH 44313; (216) 836-9180; Telex 241 634; Fax (216) 836-1005.

Plastics Recycling Foundation, Inc., displayed literature concerning the recycling of materials such as PS and PET. The literature presented data from the Center for Plastics Recycling and Research showing the benefits of recycling PS. Other data indicated the properties, anticipated price and availability, and currently available test quantities of PET. Plastics Recycling Foundation, Inc., 1275 K St. NW, Washington, DC 20005; (202) 371-5200.

Pollution Control Products Co. offers a line of controlled pyrolysis cleaning furnaces that use heat to decompose and remove plastic residues from the metal screws of extruders and injection molding machines. The Model SCTR features a new conveyor design that reportedly simplifies the loading and unloading of screws. The combustion byproducts that the machine discharges are harmless, consisting primarily of carbon dioxide and water vapor. Pollution Control Products Co., 2677 Freewood Dr., Dallas, TX 75220; (214) 358-1539; Telex: 709610; Fax (214) 358-3379.

Polydata Limited featured its CAPS (Computer-Aided Polymer Selection) materials database for the selection of thermoplastic grades. The system provides an overview of more than 5000 thermoplastic grades. It runs on IBM-compatible PCs and can be used with software that allows it to store functional data such as viscosity data and creep curves. Polydata Ltd., Unit 16, IDA Enterprise Centre, 111 Pearse St., Dublin 2, Ireland; (01) 711135; Fax (01) 711746.

Polymer Composites Inc. illustrated its line of Celstran long fiber reinforced injection molding materials, which promise both stiffness and impact strength. Parts molded from Celstran are said to have a glossy surface finish and improved dimensional stability. The firm also offers a line of Celstran S stainless steel injection molding materials, and a line of Compel and Fiberod advanced composites. Polymer Composites Inc., P.O. Box 30010, 5152 West Sixth St., Winona, MN 55987; (507) 454-4150.

Polymer Materials, Inc., a producer of color concentrates and additives, outlined its services. The firm formulates custom additives, such as UV inhibitors, antioxidants, antistats, and flame retardants, and uses a computerized color-matching and QC system to formulate colors. The firm also offers a line of thermoplastic resins including PS, PE, PP, and engineering resins. Polymer Materials, Inc., 442 Browder Switch Rd., P.O. Box 127, Jasper, TN 37347; (615) 942-9195; Fax (615) 942-5885.

The Portuguese Trade Commission offered an overview of Portugal's mold industry, describing economic conditions, export data, and technologies. The Commission presented a directory showing Portuguese manufacturers of molds for plastic products used in the automotive, domestic appliance, electronics, furniture, and toy industries. Portuguese Trade Commission, 590 Fifth Ave., New York, NY 10036; (212) 354-4610; Telex 640175 PGTOP NY; Fax (212) 575-4737.

Precision Feedscrews, Inc., displayed a 6-in sample of the extrusion and injection molding screws that it manufactures, repairs, and rebuilds. The firm specializes in rebuilding large specially designed screws and in providing hard-surface solutions to high-wear environments. It uses Automatic Plasma Transferred Arc Welders to produce hard surfaces, and offers a variety of hard-surface materials such as Mickalloy. Precision Feedscrews, Inc., Shenango Industrial Park, P.O. Box 7357, New Castle, PA 16107; (412) 654-9676; Fax (412) 654-9982.

Procedyne Corp. displayed a model of one of its Fluidized Bed Cleaning Systems, which remove polymer from extruder hardware by melting the polymer and decomposing it. The systems use pyrolysis and partial oxidation to decompose the polymer; any remaining carbon residue is oxidized in the fluidizing air. The firm also manufactures a line of afterburners, used in conjunction with the cleaning systems, that destroy combustible air pollutants from the off-gas stream of the cleaning system by burning them. Procedyne Corp., 11 Industrial Dr., New Brunswick, NJ; (201) 249-8347; Telex: 910-240-6681; Fax (201) 249-7220.

The Q-U-V Accelerated Weathering Tester offered by The Q-Panel Co. simulates rain and dew by the direct condensation of water on the test specimen, and uses fluorescent UV lamps to simulate the effects of sunlight. It is said to provide a choice of cycles and temperatures for reproducing different climates and conditions. The Q-Panel Co., 26200 First St., Cleveland, OH 44145; (216) 835-8700; Telex: 985221; Fax (216) 835-8738.

Radiation Monitoring Devices, Inc., exhibited its Compuglass Analyzer, an instrument that measures glass, filler, and flame retardants for reinforced plastics. It performs nondestructive quantitative analysis by comparing unknown samples to calibration standards. Calibration and analysis data can be stored for use in SQC. Radiation Monitoring Devices, Inc., 44 Hunt St., Watertown, MA 02172; (617) 926-1167; Telex 951661; Fax (617) 926-9743.

Randcastle Extrusion Systems Inc. showed its new Micro-Coextrusion Film Line for producing five-layer film. It is a small line designed for researching the effectiveness of adhesives, oxygen barriers, and other properties of coextruded film. Its single-screw extruders, which range in diameter from 1/4-in to 1/2-in, are discharge-driven, a feature that allows the screw to extend into the hopper. Also exhibited was the new Micro-Pelletizing line, which is designed to compound, by single-screw extrusion, samples as small as 15 g. Randcastle Extrusion Systems Inc., 31 Hopson Ave., Little Falls, NJ 07424; (201) 256-2344.

The Rheometrics Dynamic Analyzer (RDA) exhibited by Rheometrics, Inc., is a rheological test system for measuring the viscoelastic properties of solids and melts, particularly the cure behavior of thermosets. It can evaluate such properties as viscosity, elastic modulus, viscous modulus, and damping. Its AutoStrain control is said to compensate for changes in modulus; its autotension control compensates for thermal expansion or contraction. Rheometrics, Inc., One Possumtown Rd., Piscataway, NJ 08854; (201) 560-8550; Telex 219107 RHEO UR; Fax (201) 560-7451.

Robotic Scientific, Inc., unveiled its new Petron MI-100 Automatic Melt Indexer, a robotic instrument that automatically measures the flow rate of extruded polymers. It performs the measurements according to ASTM D1238 (Procedure B). The instrument can be operated through an IBM-PC AT-compatible computer. Robotic Scientific, Inc., P.O. Box 11037, Spring, TX 77391-1037; (713) 251-5645.

Seiko Instruments USA Inc. introduced its SSC5200 Thermal Analysis System. At the center of the system are a TA Station and Diskstation, which integrate individual modules with extended functions. Its multitasking functions include the processing and display of data simultaneously with measurement. The system also reportedly monitors during analysis the signal values of each measurement module. Seiko Instruments USA Inc., 2990 West Lomita Blvd., Torrance, CA 90505; (213) 517-7800; Fax (213) 517-7793.

Seiscor Technologies Inc. illustrated its CMR-II Process Rheometer, said to provide real-time process measurements of ASTM D1238 Melt Flow Index; dual MFI tests; apparent viscosity tests; and dual shear stress and shear rate tests. The firm also detailed its REX1000 Particle Sampling System and its Rheoscan Supervisory Control Software. The sampling system is designed to continuously sample powder or pellets, convey the material to the sampling system extruder, and condition the sample to a molten state for rheological analysis. The Rheoscan allows an IBM PC/AT to monitor the operation of the particle sampler. Seiscor Technologies, Inc., 5311 South 122nd East Ave., Tulsa, OK 74146; (918) 252-1578; (800) 331-4048; Telex 796091/BKAW; Fax (918) 254-8160.

Sensotron detailed its Series 400 Melt Pressure Transducer, which does not require temperature isolation of its sensing diaphragm. This feature is said to eliminate the need for mercury or NaK fills. The sensing diaphragm is manufactured from sapphire; its extra thickness and hardness suit it to highly abrasive extrusion applications that can wear out thinner, stainless steel diaphragms. Sensotron, 5881 Engineer Dr., Huntington Beach, CA 92649; (714) 893-1514; Fax (714) 894-3123.

Sintech, a Division of MTS Systems Corp., showed its Vision Extensometer. The device uses a high resolution camera to provide noncontact strain measurements on mechanical test machines. Its applications include robotic testing systems and strain measurement of high-elongation materials. The firm also offers RoboTest, a robotic system for mechanical testing. Sintech, A Division of MTS Systems Corp., 378 Page St., Stoughton, MA 02072; (617) 344-0491; Fax (617) 341-4220.

Sira Inc. highlighted its Sira/Image Automation inspection system, which is said to exhibit superb topographic sensitivity; and its IA7010 Inspection System for glass and transparent materials, a laser-scanning system said to offer excellent scratch and inclusion detection and sensitivity to local thickness and refractive index variations. Its applications also include polyester and acetate. Sira Inc., 722 Post Rd., Darien, CT 06820; (203) 655-6535; Fax (203) 655-2090.

The TSC/RMA Spectrometer offered by Solomat Instrumentation is a new instrument for analysis of decoupled molecular motions. It uses thermally stimulated depolarization current techniques to determine the relaxation of a material's internal motions. These techniques relate directly to molecular mobility, offering insight into physical and morphological structures. Solomat Instrumentation Glenbrook Industrial Park, Stamford, CT 06906; (203) 977-8161; Telex WUI 661913; Fax (203) 356-0125.

Southwest Heater and Controls Corp. featured its ISI Series Melt-Pressure Transducers. Model 0100 is a rigid-stem melt-pressure transducer that converts applied pressure at the point of measure to a proportional voltage-output signal. A small capillary tube filled with a "special medium" transmits pressure while isolating sensitive strain gages and electronics from potential thermal damage. The firm also offers industrial electric heaters and elements; temperature controls and sensors; and thermocouples. Southwest Heater and Controls Corp., 12052 Forestgate Dr., Dallas, TX 75243; (214) 231-6000; Fax (214) 238-5544.

Technalysis Inc. illustrated its Plastec mold filling simulation software. Plastec is a finite-element package for predicting the "manufacturability" of injection, compression, and extrusion molded parts. Its preprocessor reportedly allows the user to input geometries parametrically with the use of CAD IGES files. The firm also offers Passage, a software package for analyzing flows through complex stationary and rotating passages. Passage/Sysflow, a module for the package, predicts flow network performance. Technalysis Inc., 7120 Waldemar Dr., Indianapolis, IN 46268; (317) 291-1985.

Theysohn Corp. featured its Series TSK co-rotating twin-screw compounder. The series reportedly meets the following compounding requirements: production of pigment and additive masterbatches; devolatilization of compounds; and inclusion of fillers and reinforcing mediums in engineering plastics. The firm also illustrated a line of barrel sections, screw elements and kneading blocks, and screw shafts for co-rotating twin-screw extruders, as well as bimetallic cylinders for injection molders and extruders. Theysohn Corp., P.O. Box 157, 1320 N.81 By-Pass, McPherson, KS67460;(316)241-4333; Fax (316) 241-6469.

The 3M Co. detailed its Dynamar line of polymer processing additives, which are said to improve hard-to-process formulations by correcting severe processing conditions. The additives enable processors to use narrower die gaps and to operate at lower temperatures. They are said to reduce melt fracture and die buildup. The firm also offers a line of Kel-F PCTFE high performance plastics that are said to resist aggressive chemicals and extreme temperatures. 3M Industrial Chemical Products Division, 3M Center Building 223-6S-04, St. Paul, MN 55144-1000; (612) 733-5755.

United Silicone Inc., a designer and manufacturer of plastics-decorating systems, illustrated a range of hot stamping machines and pad transfer printing equipment. The firm's hot stamping systems include peripheral marking and roll-on equipment, foilmarkers, and rotary indexing tables. Its pad transfer printing equipment includes the Uni-Printer Model UP Series and a variety of partholding fixtures. United Silicone Inc., 4471 Walden Ave., P.O. Box 265, Lancaster, NY 14086; (716) 681-8222; Fax (716) 681-8789.

Van Nostrand Reinhold displayed an extensive selection of reference books covering such topics as materials handling, structural design, molding and moldmaking, and plastics finishing and decorating. Van Nostrand Reinhold, 115 Fifth Ave., New York, NY 10003; (212) 254-3232.

Viscotek Corp. offers differential viscometers, software, and data stations for measuring viscosities of solutions, oils, and gels. The Model 100-01 Differential Viscometer features automated preparation of samples; its Viscotek IV software is designed for all IBM PC-, XT-, and AT-compatible computers. The Model Y-500 Relative Viscometer offers several levels of automation and measures relative-, inherent-, and intrinsic-solution viscosities. Viscotek, 1032 Russell Dr., Porter, TX 77365; (713) 359-5966; Telex 9102400852; Fax (713) 359-4336.

Waters Division of Millipore Corp. illustrated its 150CV GPC/Viscometry System, which measures both absolute molecular weight and molecular weight distribution. The system features a capillary viscometer and a refractometer housed within a temperature controlled compartment, reportedly ensuring stable baseline performance. The firm offers many additional gel permeation chromatography systems. Waters Division of Millipore Corp., Waters Chromatography Division, 34 Maple St., Milford, MA 01757; (508) 478-2000.

Werner & Pfleiderer Corp. modeled its ZSK High-Performance Twin-Screw Compounding System. The ZSK is based on a co-rotating and closely intermeshing twin-screw system; its screw geometry is said to provide efficient conveying, pressure buildup, and self-cleaning action. The system can be used for converting powder into pellets, removing large quantities of solvents and volatiles, and reactive compounding. The firm also displayed on-line processing control systems and automated pelletizing systems. Werner & Pfleiderer Corp., 663 East Crescent Ave., Ramsey, NJ 07446; (201) 327-6300; Fax (201) 825-6460.

Williams & Mettle Co. showed its line of extruder pack screens and wire-cloth products. The firm offers a variety of framed and unframed extruder screens, including spot-weld pack screens, and stainless steel roll screens. It also offers a Kopper Kleen copper gauze cleaner. Williams & Mettle Co., 3007 Crossview, Houston, TX 77063; (800) 526-4954; (713) 782-2432; Fax (713) 782-3134.

Windsor Plastics, a decorative plastics company, outlined its services in the areas of custom molding and finishing of thermoplastics. The firm employs the processes of insert molding, in-mold foiling, and selective in-mold foiling. It also uses a Spectrogard Color-Measuring System to perform color matching and correction. For producing a brushed chrome effect, the firm uses electromagnetic interference shielding and interrupted chrome plating. Windsor Plastics, Inc., 1050 W. Freeway, Grand Prairie, TX 75051; (214) 269-4400.

Wyko Corp. detailed its TOPO System, which provides noncontact measurement and profiling of microsurfaces. The system's electronic travel limit prevents accidental contact with the sample. The system uses a white light source to produce a range of colored fringes and one black fringe, which is used to focus the sample. The Topo-3D model is useful for measuring the asperity distribution and surface roughness of polyester film surfaces. Wyko Corp., 2650 E. Elvira Rd., Tucson, AZ 85706; (602) 741-1297.

Xaloy Inc. featured its line of X-800 tungsten carbide composites, which are used as lining material for screws and barrels. The composites consist of tungsten carbide particles dispersed in a corrosion resistant nickel-base alloy matrix; they are said to enhance the wear resistance of barrels and screws. The firm also illustrated its four-piece bimetallic screw tip, said to be highly abrasion- and corrosion-resistant. Xaloy Inc., P.O. Box 1441, Rt. 99, Pulaski, VA 24301; (703) 980-7560; (800) BARRELS; Telex 829359; Fax (703) 980-5670.

Zenith Pumps Division of Parker Hannifin Corp. showed its line of metering pumps and systems, including the ZeDrive metering system, which provides closed-loop speed regulation and is said to be suited for applications requiring the metered flow to precisely follow any variations in process speed. Typical applications include web coating, textile yarn finishing, and wire-insulation coating. The firm also illustrated its PEP Series extrusion gear pumps and systems. Zenith Pumps Division of Parker Hannifin Corp., 48 Woerd Ave., Box 9115, Waltham, MA 02254; (617) 894-0650; Telex 283905.

PHOTO : The new Graviblend is said to provide accurate feed rates by individually and continuously weighing up to eight ingredients. K-Tron Vertech.

PHOTO : The PS 1010 is a continuous system of plasma surface treatment that features an aluminum reaction chamber. Plasma Science, Inc.

PHOTO : The new Micro-Coextrusion Line is a research-sized system for producing film of five layers or fewer. Randcastle Extrusion Systems Inc.

PHOTO : The Series 400 Melt Pressure Transducers are suited to highly abrasive extrusion applications. Sensotron.
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Title Annotation:Society of Plastics Engineers' Annual Technical Conference; includes descriptions of exhibited products
Publication:Plastics Engineering
Date:Jul 1, 1990
Words:16147
Previous Article:Quality control.
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