Printer Friendly

1989 additives annual.


The field is so vast and varied, filled with superb multifunctional products, that easy categorization becomes more and more elusive. Herewith, then, alphabetically by company, is a compilation of recently introduced additives for the plastics industry, and one or two older ones with new applications.



Air Products and Chemicals, Inc., has developed a line of water-based mold release agents that can be used in a variety of technically demanding molded polyurethane applications, including those traditionally served by solvent-based products. The agents, marketed under the Air-lift trademark, offer minimal spray-to-pour times while providing "excellent" surface quality and release. Since the products are water-based, they cause no organic emissions, are non-flammable, and can be handled and stored easily. Downtime for mold cleaning is lessened because the agents reduce buildup rates on mold surfaces. These performance characteristics make the agents suitable for use in high-quality polyurethane parts such as automotive seating, armrests, headrests, steering wheels, and furniture foam.

In addition, Air Products' Anchor Chemical unit has taken over the Impex epoxy curing agent business of the Penultimate Corp., Huntington Beach, Calif., to expand its existing line of dicyandiamide curing agents. The newly acquired curing agents will continue to be marketed under their Impex tradenames. Air Products and Chemicals, Inc., Box 538, Allen-Town, PA 18195; (215) 481-4911.


Akzo Engineering Plastics, Inc., has developed a number of PET-based color concentrates for transparent PET applications. These products add color without sacrificing the clarity desired. PET colors have also been formulated for recycled resins. Traditional polyethylene consumer products have been duplicated with recycled PET and color masterbatches. Two color lines based on polybutylene terephthalate have been developed for wire and cable coatings. These colors have been matched to EIA Munsell and NEMA color standards.

Akzo has also developed polyurethane-based surface modifier masterbatches. These products include mold release or antiblacking additives for films and profile extrusion. Nonmigratory detackifier and dulling agents are also available as separate masterbatch or combined with other additives for multifunctional masterbatch. Akzo Engineering Plastics, Inc., Woodfern Rd., P.O. Box 625, Neshanic Station, NJ 08853; (201) 369-4343.

Akzo Chemicals has introduced new heat and light stabilizers. For the plastisol-base wall covering area, bariumzinc-based Interstab LT-4717 provides the heat stability, stain resistance, and viscosity control characteristics critical to this application and process. Interstab LT-4701, a cadmium-free, calcium-zinc-base product for stabilizing urethane-coated, fabric-backed PVC plastisols, exhibits excellent stain resistance at the urethane interface and has been formulated to give the excellent air release and viscosity control required in knife coating procedures. Other cadmium-free products include Interstab LT-4752, LT-4775, and LT-4780, heat and light stabilizers for flexible PVC. Interstab BC-4758 and Interstab BC-4772, Akzo's cadmium-containing products, exhibit early color hold and long-term stability. Nontoxic Interstab CZL-720, designed for use in extruded/blown packaging films, extruded tubing, and calendered sheet, also has excellent early color and long-term stability. For PVC processing, Akzo offers a variety of tin stabilizers with a variety of applications: Stanclere T-4704, T-285C, T-4654, T-4661, and T-5507. Each provides specific traits needed for various processes or end-use areas. Akzo Chemicals Inc., P.O. Box 638, 500 Jersey Ave., New Brunswick, NJ 08903; (201) 247-2202.


American Cyanamid Co.'s Cyanox 2777 antioxidant--a 1:2 blend of Cyanamid's Cyanox 1790 hindered phenolic antioxidant and Tris (2,4-di-t-butylphenyl) phesphite--provides high activity and low volatility, and is designed for high-temperature processing conditions. The product resists black speck formation and is low in color contribution. It also is resistant to gas yellowing and minimizes water carryover problems in water-quench processes. Cyanox 2777 is applicable in a wide spectrum of polyolefin applications, such as fine fiber, slit tape, and firm and thick molded parts.

Last year the company introduced two new liquid hindered amines, Cyasorb UV-3581 and UV-3604 light stabilizers. The former is a secondary amine while the latter is a tertiary amine having lower basicity. Both are said to provide excellent performance in ABS and PP/PE copolymer automotive parts applications. They are nonpolymeric, and they are intended to complement the company's polymeric Cyasorb UV-3346. American Cyanamid Co., Polymer Products Division, One Cyanamid Plaza, Wayne, NJ 07470; (201) 831-2000.


Ampacet Corp. has introduced a new amide-based slip additive concentrate for films with medium coefficients of friction. Product 10844 extends Ampacet's product line and offers manufacturers greater flexibility in maintaining COF between 0.25 to 0.35 in all polyolefin resin films evaluated. The company reports that the additive decreases variability in LDPE film. Ampacet Corp., 250 South Terrace Ave., Mount Vernon, NY 10550; (914) 699-9100.


Anzon Inc. has introduced the EnviroStrand Process, which utilizes a predispersion of plastics additives in a functional binder/carrier system selected for the host polymer. The EnviroStrand process yields very high loadings, and its low heat causes minimal degradation of additives such as UV absorbers, antioxidants, and halogenated flame retardants. The strands--1 mm in diameter and 10 mm long--can be easily handled in normal metering or conveying equipment. Anzon's EnviroStrands are available as combinations of antimony oxide and brominated or chlorinated flame retardants. Binder systems have been developed for PVC, PBT, PET, PC, PP, PE, nylons, elastomers, and other polymers. Anzon Inc., 2545 Aramingo Ave., Philadelphia, PA 19125; (215) 427-3000.


Chem-Trend Inc.'s line of mold-release agents now includes the CTW-1000 Series, for high-resiliency polyurethane foam, which promise excellent release and reduced environmental discharge of organic pollutants. CT-1100 and CT-1200 Series products offer improvements in manufacturing productivity, require less mold cleaning, and minimize usage of release agents. The CTW-9000 Series products for integral skin and semirigid polyurethane foam types offer low- to high-gloss urethane surface control, excellent paint or stain adhesion with minimum cleaning and handling, ease of release at mold temperatures from 90[deg.]F to 120[deg.]f, and reduced discharge of organic pollutants to the environment. CT-5000 Series release agents for integral skin molding offer excellent release from epoxy, urethane, steel, aluminum, and stainless steel molds; and control of low- to high-gloss levels. Other new Chem-Trend products include Mono-Coat RPM, Chem-Trend flange waxes, top coats, and mold cleaners (processing aids that complement Mono-Coat RPM), Mono-Coat E179, and Mono-Coat E185 and E148B Mold Sealers. Chem-Trend Inc., 1445 W. McPherson Park Dr., P.O. Box 860, Howell, MI 48844-0860; (800) 248-4056; in Michigan (800) 292-8236; in Canada (800) 438-2669.


Chroma Corp. is now able to market a degradable masterbatch--C-9338. The formula's major ingredient is corn, and it also includes photodegradables and oxidation control additives. The name of the product is Natural Degradable Masterbatch, product C-9338. Chroma Corp., 3900 Dayton St., McHenry, IL 60050; (815) 385-8100.


The Pigments Division of Ciba-Geigy Corp. has introduced Cromophtal Brown 11144A for rigid, semirigid, and plasticized PVC. The pigment possesses excellent lightfastness and weatherability in both dark and medium brown shades containing TiO.sub.2. Ciba-Geigy has also introduced Tinuvin 622FB, a new form of polymeric hindered amine light stabilizer for polyolefin thick sections, films, and fibers. The product is a low-dust, free-flowing granular pellet that is easy to handle by personnel and equipment. In addition, it is approved for a wide variety of polyolefins, including EVA, for food contact applications by the FDA. Ciba-Geigy Corp., Pigments Division, 7 Skyline Dr., Hawthorne, NY 10532; (800) 431-1900; in New York (914) 347-4700.

The Plastics Division of Ciba-Geigy Corp. has developed three new hardeners for use in formulating solventless or high solids coatings to meet emerging standards limiting the emission of volatile organic contents (VOC) in paint systems. Hardener XU HY 360 is a 100% solids, modified polyamidoamine with a viscosity of approximately 300 to 500 cp at room temperature. Hardener XU HZ 365 is a high solids (70%) phenolic cross-linking resin for high-performance, low VOC coatings. It can cure over a wide range of baking schedules, from 30 min at 177[deg.]C to 60 sec at 300[deg.]C. XU HZ 365 is FDA-santioned for use in container coatings and product finishes. Hardener XU HY 371 is a low-viscosity (250-350 cp at room temperature) modified aliphatic amine developed specifically for low-temperature curing epoxy coatings. XU HY 371 attains a high degree of cross-linking at 40[deg.]F and below, with concurrent rapid development of film properties. Ciba-Geigy Corp., Plastics Division, 3 Skyline Dr., Hawthorne, NY 10532; (800) 431-1900; in N.Y. (914) 347-4700.


Last year, Climax introduced two new zinc borate flame-retardant and smoke-suppressant products, following its acquisition of Humphrey Chemical Corp. ZB 467 is offered as a flame retardant and smode suppressant in flexible vinyl and an auxiliary retardant in halogenated polyolefins and thermoset polyesters. It is useful at compounding temperatures of up to 300[deg.]C. ZB 223 is a more effective smoke suppressant in flexible vinyls and can reduce smoke formation by over 50%. Climax Performance Materials Corp., Polymer Additives Group, Amax Center, Greenwich, CT 06836-1700; (203) 629-6214.


Crowley Chemical Corp.'s well-known Viplex 885 is now being used as a modifier for reinforced unsaturated polyesters. When added to polyester resin, Viplex 885 can increase tensile strength and impact resistance of reinforced fiberglass polyester, and reduce viscosity, shrinkage, and compound cost. Also reduced are surface tension, brittleness, water absorption in a fiberglass matrix by as much as 60%, and the amount of heat generated during cure. In addition, the product can improve bonding between various layers of layups and between the gel coat and lay-up. Crowley Chemical Co., Inc., 261 Madison Ave., New York, NY 10016; (212) 682-1200.


Day-Glo Color Corp. has introduced new high-intensity fluorescent dyes: Potomac yellow (a greenish shade yellow), golden yellow (a medium shade yellow), and marigold orange (a red shade orange). The company says the dyes are compatible with a wide range of plastics, including polycarbonates, styrenics, and nylon. In addition, NX Pigments--new fluorescent pigments for polyethylene, particularly suited for blowmolding plastic bottles--have been introduced. Day-Glo Color Corp., 4515 St. Clair Ave., Cleveland, OH 44103; (216) 391-7070.


Degussa has extended its series of carbon black/plastic concentrates with the introduction of RKK UNI 40, which is suitable for use as a black pigment in thermoplastics. It consists of a large particle-sized pigment black and a modified binding agent that contains no filler. It exhibits good spreading properties. It has good re-dilution behavior and can be handled cleanly, and batching is said to present no problems. It can be used to color-over regenerated plastics. Degussa AG, Postfach 110533 D-6000 Frankfurt 11, West Germany; Telephone (069) 218-2860, or (069) 218-2230.


D.J. Enterprises offers Micro-P resin extender, a lightweight, noncombustiable, chemically stable, inert atmorphous mineral silicate. It is a low-density (8-10 lbs/ft.sup.3), cellular, free-flowing microparticle (range 44-150 microns). Useful as a titanium dioxide extender, the product boasts 85% GE Brightness and is stable and insoluble in water and organic acids, non-thixotropic, water resistant, non-hygroscopic, non-conductive, and compatible with flame retardants. It is also said to reduce shrinkage and exotherm temperature.

Ferro-Char B-44M is a synergist for antimony oxide flame-retardant systems that promises lower FR loading levels. It can also be used with glass-reinforced, hollow or solid-sphere, magnesium oxide, mica, and talc compounds in thermoplastics, PVC, urethanes, adhesives, epoxies, and rubber compounds. D.J. Enterprises, P.O. Box 31366, Cleveland, OH 44131; (216) 524-3879.


Ferro Corp.'s Bedford Chemical Div. is planning to commercialize an oligomeric, patented hindered amine light stabilizer (HALS), UV-Chek Am-206, later this year. It is in a flaked physical form.

Another product, UV-Chek AM-340, is an excellant synergist with HALS in polyolefins and has received expanded FDA approval in homopolymers and copolymers of HDPE and polypropylene. It is used to enhance the thermal color stability of base polypropylene resin used in automotive applications.

Two brominated polystyrene flame retardants also will be introduced. Pyro-Chek LM, a brominated low molecular-weight polystyrene, is compatible with HIPS resins and produces flame-retardant and physical properties equivalent to decabromodiphenyl oxide additives. The T.sub.g of this polymeric additive is only 125[deg.]C. It retains good thermal stability.

Pyro-Chek HF, a plasticized brominated polystyrene, is a high-flow flame-retardant additive that allows for an increased compounding production rate when melt-blended into PBT resins. It achieves improved impact and elongation properties in the compounded resin.

A series of over four dozen non-cadmium liquids have been developed that are primarily modifications of Therm-Chek 130, 135, and 140. While most of these still have experimental designations, three have received commercial product numbers. They are Therm-chek Chek 110, 119, and 125. All are suitable for clear and filled plastisol, extrusion, and calendering applications.

In addition, a series of barium-zinc powders based on Therm-Chek 191 have been developed. They are based on the company's patented chelated zinc technology, and are intended to be used as "boosters" along with their new non-cadmium, liquid-heat stabilizers.

For clear, nontoxic applications, BH 221 has been developed, a high fluid paste that provides "outstanding" clarity in extruded medical tubing.

For the purpose of extended amine stain resistance in rotationally molded auto instrument panels, a number of non-cadmium pastes and powders have been developed. at present, these have experimental designations BH-303, BH-171C, and BH-147BP. Ferro Corp., Bedford Chemical Div., 7050 Krick Rd., Bedford, OH 44146; (216) 641-8580.

Ferro's Color Division offers V-777, an inorganic pigment (black). It is the product of the high-temperature calcination of chromium oxide and iron as major components. A pigment with good heat stability, and acid resistance, weatherability, and light-fastness, it is also nonmigratory, nonbleeding, and compatible with most resins. An easily dispersed, finely ground pigment, it is recommended as a tinting black in rigid PVC. Because of its high infrared reflectance, it helps minimize heat buildup in colors of products where co-efficient of expansion is important. Ferro Corp., color Div., 4150 East 56th St., P.O. Box 6550, cleveland, OH 44101; (216) 641-8580.


FMC Corp. offers Kronitex 3600, a synthetic phosphate ester suggested for applications requiring plasticization and low smoke generation. It is useful for vinyl film and sheeting, wire and cable insulation, coated fabrics, plastisol systems, and other demanding applications. Compatible with a variety of resins, it can be used as the sole plasticizer or as part of a blend to minimize cost and optimize end-product performance characteristics, the company says.

Also offered is Gelstar CG-300, a co-processed blend of cellulose gel (microcrystalline cellulose) and cellulose gum (sodium carboxymethylcellulose), available as a thixotrope. Its anticipated use is as a thickening agent in such applications as cosmetics, paints, ceramics, and plastics. FMC Corp., Phosphorus chemicals div., 2000 Market St., Philadelphia, PA 19103; (215) 299-6000.


Great Lakes Chemical Corp.'s FB-72 flame retardant is a proprietary blend of bromine compounds designed specifically for UL-94 V-2 polypropylene and polystyrene resins. It offers excellent melt blendable processing and retention of physical properties. It is said to be very compatible with polystyrene and polypropylene.

DP-45, tetrabromophthalate ester, is a plasticizing flame retardant for flexible PVC compounds. Its thermal stability and low volatility allow a compounder to produce compounds that can achieve the maximum 105[deg.]C rating as measured by the UL 1581 standard. Its high flame-retardant efficiency allows attainment of LOI values exceeding 40. By replacing part of the antimony trioxide in a PVC system where only antimony trioxide had been used as a flame retardant, DP-45 can reduce the smoke in and lower the cost of the resin.

A new carbonate oligomer targeted at the PVC/CPVC industry as an HDT modifier has been developed. The product, CN-1427, can raise the heat deflection temperature by 20[deg.]F in rigid PVC and even higher in CPVC. In addition, smoke development can be reduced by 50% depending on loading levels and compound formulation.

Charguard 329 is a proprietary non-halogen flame retardant based on nitrogen and phosphorus chemistry. It allows the compounder to achieve a UL 94V-0 rating and low smoke values while maintaining the living hinge properties characteristic of polypropylene. It has good thermal stability and hydrolytic stability.

Firemaster 642 is a proprietary flame retardant for the flexible polyurethane market. A low-viscosity liquid containing bromine, chlorine, and phosphorus, it is a high-efficiency product that provides vertical burn performance at low loading levels. Great Lakes Chemical Corp., P.O. Box 2200, Highway 52 N.W., West Lafayette, IN 47906; (317) 497-6100.


Henkel Corp. has developed several lubricants that have significant costabilizing effects, permitting a reduction in common tin mercaptide stabilizer levels in rigid PVC systems. Loxiol VGE-1728, an internal-external costabilizing lubricant, was designed for extruded rigid profiles as a replacement for Ca-stearate/amide wax. Loxiol VGE-1884, an internal costabilizing lubricant, was designed for extruded rigid profiles to be used in combination with reduced levels of Ca-stearate/paraffin. Loxiol VGS-1877 and Loxiol VGS-1878 are for use in injection molding applications. All offer enhanced dynamic and reserve thermal stability, potential tin mercaptide stabilizer reduction, enhanced weatherability, broader processing latitude, a potential for higher production rates and improved dimensional stability, and potential to simplify formulation and mixing requirements. Henkel Corp., 300 Brookside Ave., Ambler, PA 19002; (215) 628-1477.


Hoechst Celanese Corp. has introduced Hostastat Systems E 3952, E 3953, and E 3954, polystyrene antistat concentrates using Hostastat HS 1 as the effective ingredient. These concentrates reduce the surface resistivity and static decay in extruded or molded PS and HIPS. Typical applications are drinking cups, dairy containers, refrigerator parts, and display items.

Hostastat System VN 26427 is a pellet concentrate in a PE carrier. The effective ingredient is an FDA-sanctioned laurylamide that promotes fast static decay at low relative humidity. It is used in extruded and molded polyolefin applications.

Hostalub System VN 39917 is a highly effective flow aid for polyolefins. It comes in pellet form and is based on newly developed blends of fluoropolymers and processing aids. Compared with other fluoroelastomer-based flow aids, the addition of VN 39917 allows a considerable increase in output of LLDPE film before the onset of melt fracture.

Hostatron System VN 41004 is an endothermic blowing agent master-batch. It is based on citric acid/sodium bicarbonate systems and is FDA-sanctioned. Although developed for thin-gage foamed PP film and ribbons, it also yields a fine-cell structure in molded or extruded HIPS.

Several new non-halogen flame-retardant systems for polyolefins have also been developed. All of these Exolit systems are intumescent char formers based on ammonium polyphosphate and proprietary synergist packages. A loading of 30% to 40% Exolit IFR 10 in PE and ethylene co-polymers results in UL 94V-0 rating. Exolit IFR 11 and other tailored formulations reach V-0 ratings in PP at 20%-30% loading, with no drip and low smoke. Hoechst Celanese Corp., Rt. 202-206, P.O. Box 2500, Somerville, NJ 08876-1258; (201) 231-2000 or (201) 231-3655.


ICI Specialty Chemicals, ICI Americas Inc., has introduced two additive blends, Atmer 645 and 685, claimed to have demonstrated superior antifog functionality for all polyolefin and PVC films for food packaging. Excellent appearance values and heat stability and high effectiveness at low use levels are also claimed. The blends have FDA clearance for food contact at allowable levels.

Two new variations of polymeric dispersants for dispersion and fluidization of solid particles in non-aqueous systems, Hypermer FP 1 and FP 4, are said to provide superior dispensing performance and particle loading at reduced viscosity. FP 1 has special application as an extrusion and sprayable sealant and adhesive and is particularly effective in polysulfide, PVC- and oil-based sealants and putties, and butyl rubber sealants. FP 4 has particular application in dispersing fillers into thermoset unsaturated polyester and epoxy resin systems.

Topanol 600, a new highly active, aqueous phenolic antioxidant dispersion for SBR latex, is reported to show equal or better stabilization effects compared with other phenolic-based dispersions. ICI Americas Inc., Wilmington DE 19897; (800) 456-3669, or (302) 886-3564.


M&T Chemicals has introduced Metablen P-710, a low-molecular-weight process aid with high lubricating properties for better hot metal release in PVC sheet applications. Produced by Metco North America, the company's joint venture with Mitsubishi Rayon Co., Ltd., the additive does not cause bloom or plate-out and can be used in rigid and flexible calendered goods, PVC packaging, and vinyl siding and window profiles. For quality, consistency, and time-saving in PVC siding and window profile coextrusion, "One Pack" is now offered: the additive system comes in powdered form and is said to combine the right amounts of a heat stabilizer, impact modifier, and processing aid in one neat package.

M&T has enlarged its flame-retardant product line. Thermoguard Electrofine S 70, a 70% solid chlorinated paraffin wax with less than 0.1% carbon tetrachloride, is used also as a plasticizer in polyolefins, polystyrenes, EPDM rubbers, coatings, and adhesives and sealants. New nontoxic brominated products said to have high compatibility and stability are: Thermoguards 230H and 240 for use in engineering plastics; Thermoguards 212 and 215 for unsaturated styrene polyesters; and Thermoguards 210 and 220 for epoxy resins. Thermoguard FR, high-purity sodium antimonate, is now offered in several versions for use wherever antimony oxide causes problems. An antimony-chlorine concentrate, PA1869, is now being introduced for use with polyethylene, especially for meeting the UL VW1 specification for wire and cable. M&T Chemicals Inc., Rahway, NJ 07065; (800) 631-5408 or (201) 499-2453.


The high slip properties of Ease Release TM 2251 from George Mann & Co. are said to provide faster cycling times for soft-durometer urethane elastomers. The mold release agent is recommended for use in newer, high-performance urethane applications. It is said to be effective on all mold surfaces, to yield high-quality surface finishes with no mold buildup, and to be efficient over a broad temperature range. It is available in aerosol cans or in bulk grades of special solvent blends. Also available is a general-purpose release agent reported to be effective in reducing buildup. Ease Release 300 offers easy part cleaning for post-finishing operations, while providing superior properties as a release for polyester, epoxy, urethane foam, and elastomers. It is fast drying and provides excellent duplication of mold surface details. It is effective over a temperature range of 70_deg.'F to 500_deg.'F. George Mann & Co. Inc., Harborside Blvd., Providence, RI 02901; (401) 461-2430.


The Mearl Corp. has introduced Mearlin Satin White, a new pearlescent luster pigment. The titanium dioxide-coated mica pigment is characterized by its very fine particle size--the fine composition is said to provide excellent coverage with high reflectivity, resulting in a whiter, brighter, and cleaner pearlescent luster. It is available as nonreactive powder for plastics and surface coating applications and is also recommended for offset, screen printing, rotogravure, and flexographic ink systems. The Mearl Corp., 41 E. 42nd St., New York, NY 10017; (212) 573-8500.


The Dyes, Pigments and Organics Division of Mobay Corp. has introduced four new pigments. Quindo Violet RV-7050 is a quinacridone violet that is considerably bluer in shade than typical quinacridone violets and is designed for pearlescent and metallic finishes in automotive use. Quindo Red R-6706 has lightfastness properties that make it suitable for red colorants in architectural and industrial applications requiring excellent weatherability. Perrindo Violet V-4050 is a rheologically improved pigment for high-solids coatings systems. It can be used as a shading for metallic and pearlescent auto finishes, and its intense bluish undertone will allow its use as a carbon black substitute. Indofast Red R-6340 is a new opaque red developed for use in non-metallic automotive applications. When blended with orange/red pigments, it is reported to produce bright, solid reds without sacrificing hiding power. Pigments Dept., Dyes, Pigments and Organics Div., Mobay Corp., 550 Belmont Ave., Haledon, NJ 07508; (201) 942-3232.

From the same division is a new bireactive dye, Levafix Navy Blue E-BNA, for coloring cellulosic fibers. Degrees of fixation of 900% or higher are claimed for it in many processes. Dyes, Pigments and Organics Div., Mobay Corp., P.O. Drawer 2855, CFS, Rock Hill, SC 29731; (803) 329-3937.

Mobay has also announced that it will remove cadmium pigments as coloring from all its thermoplastic materials by next year.


Occidental Chemical Corp. is offering a small-particle grade of its cycloaliphatic flame retardant, Dechlorane Plus, for improved impact properties in ABS. The company says that the addition of 3.4% acrylonitrile-butadiene impact modifier and 1.5% of an aliphatic processing aid to the UL 94V-0 system more than doubled the notched Izod impact with little tradeoff in other mechanical properties. Occidental Chemical Corp., Specialty Products, P.O. Box 728, Niagara Falls, NY 14302; (800) 828-1144.


PMS Consolidated has added Fluoro Fast Low Plate-Out fluorescent color concentrates to its product line. Intended for the packaging and toy markets, the product is designed to reduce plate-out on mold surfaces and screws without affecting mold release. In addition, the new technology has no adverse effect on post-decoration of molded products. PMS Consolidated, 3300 University Drive, Suite 511, Coral Springs, FL 33065; (305) 753-9299.


The Clear Plastics group of Polysar Inc. Performance Plastics has a PVC processing aid, P 210-D acrylic copolymer, designed to lower compounding costs, promote faster fusion, and increase output. When used at typical levels, P 210-D promises improved material handling, including easy pneumatic transfer and automatic weighing. The use of P 210-D in plastic articles intended for contact with food is governed by FDA regulations. In a variety of applications, the non-dusting, prill form processing aid/modifier helps reduce the melt viscosity of the compound and increase its hot strength, which produces improved flexibility and elasticity. The result, according to the company, is that P 210-D eliminates tearing of PVC, which commonly occurs at higher temperatures and production rates. The company reports that compounders claim that less P 210-D is required during processing than many other processing aids. Polysar Inc., Performance Plastics, Clear Plastics Group, Dept. 9352, 17 Woodland Rd., Madison, CT 06443-2399; (203) 245-0441 or (800) 243-4750.


Polyvel Inc. has expanded its product line to include the following additivies:

AI-2645 and AI-2685 antifog agent concentrates are blends of proprietary non-ionic surfactants, manufactured by ICI Americas, processed into pellet form, and recommended for use in films made from LDPE, LLDPE, PVC, EVA, or BOPP. These concentrates are approved by the FDA for food contact.

BA-2575 is a 25% concentrate of a high-temperature blowing agent for use in the 700_deg.'F to 735_deg.'F temperature range. It is available as a uniform offwhite color pellet.

AI-2163 is a synthetic tertiary amine surfactant. Made in pellet form, this concentrate is said to have excellent dispersion and antistatic properties. FDA clearance has been given to this product. Polyvel Inc., 120 North White Horse Pike, Hammonton, NJ 08037; (609) 567-0080.


A lightweight hollow glass sphere has been introduce by Potters Industries, According to the company, Sphericel 110P8 hollow glass spheres, with a density of 1.1 g/cc, provide the benefits of conventional solid glass spheres while significantly lowering the weight of the finished compound. Because of their small size and relatively thicker walls, these hollow glass spheres are said to withstand injection molding pressure with insignificant breakage. Polymer Additivies Group, Potters Industries, 20 Waterview Blvd., Parsipany, NJ 07054; (201) 229-2900.


PPG Industries has introduced Hybon 2006, a fiberglass moving reinforcement specially formulated for epoxy resin-based filament winding processes. The company says that Hybon 2006 has an enhanced epoxy-compatible binder system that results in less excess resin drain and improved wet-out characteristics, compared with other reinforcements. Additionally, the new roving is said to have greater abrasion resistance. PPG Industries, Glass Group, One PPG Place, Pittsburgh, PA 15272; (412) 434-3019.


The USI Division of Quantum Chemical Corp. has introduced the following Spectratech concentrates:

RM11575--A proprietary stabilization concentrate designed to enhance the recyclability of polypropylene and EVA resin coextrusions in bottle and sheet applications.

FM1727H--A foam concentrate containing a high-temperature chemical blowing agent designed for use with polycarbonate in structural foam applications.

CM88100--A white concentrate for extrusion coating lamination applications that will reduce die drool and smoking at process temperatures of 600_deg.'F.

HM88947--A while extrusion coating grade concentrate for use with ethylene acrylic acid resins.

CM92701--A proprietary UV-stabilized black concentrate for stretch film applications.

PM92589--A black concentrate for agricultural drip tube applications with improved stress crack resistance attributable to the use of an LLDPE carrier and a special carbon black designed for this application.

PM92617--A black concentrate employing an LLDPE carrier resin for high-pressure HDPE pipes for oil and gas distribution applications. Quantum Chemical Corp., USI Division, 11500 Northlake Drive, Cincinnati, Ohio 45249; (513) 530-6500.


Rohm and Haas has added four Paraloid impact modifiers to its product line.

Paraloid 8887-XP has been developed to provide toughness in nylon without adding as much viscosity as other tougheners. It is effective with various nylons, including nylon 66.

EXL-3339 is an acrylic toughener for engineering plastics that are processed at high temperatures, such as polycarbonate, polyarylate, or PPS, According to the company, this additive demonstrates state-of-the-art impact performance and exceeds other tougheners in color-hold and thermal stability.

KM-334, an all-acrylic impact modifier used for weatherable extrusion applications, is said to provide rigid vinyl with excellent impact combined with low die swell and excellent dimensional and thermal stability. The manufacturer also says that it offers significant gloss reduction in vinyl siding formulations, compar d with other impact modifiers.

KM-318F is an all-acrylic processing/impact modifier designed specifically for cellular vinyl applications. The company reports that this product offers low foam density with consistent cellular structure and smooth extrudate with no pits or rough areas combined with excellent weatherability and thermal stability.

The manufacturer is also offering a heat distortion temperature modifier for PVC, Paraloid HT-510 (originally known as Paraloid IRD-10P). A polyacrylic/imide copolymer, it prevents distortion from heat sources and maintains clarity by increasing the service temperature of clear and opaque PVC compounds. The company also reports that HT-510 exhibits superior weatherability, high tensile strength and flexural modulus, outstanding chemical resistance, and excellent thermal stability. Rohm and Haas Co., Independence Mall West, Philadelphia, PA 19105; (215) 592-1532.


Southwest Photo Chem has introduced Calcure (3-phenyl-1,1-dimethylurea or Fenuron), a chlorine-free epoxy curing accelerator often used with dicyandiamide in epoxy resin formulations. Southwest Photo Chem, Inc., Pomona, Calif.; (714) 621-4635.


At NPE last year, Stoner, Inc., introduced two high-performance release agents and rust preventives. B78 Rocket Release allows for post molding product painting and meets FDA regulations when used as a mold release in the manufacture of food-contacting materials. B497 is one of the first wax-based release agents available in aerosol form. The operator can spray an effective, uniform wax coating without touching the mold. The two new rust and corrosion preventives contain a highly visible red tracing dye to assure quick, even, and thorough coverage of metal molds.

RedGard is formulated for relatively short-term protection of molds, up to several weeks, providing a thin, even film to seal out dampness and humidity. RedKote is a heavier-duty formulation providing the same protection for periods up to several months or more. In both products, the red tracing dye helps to prevent missed coverage areas and the inadequate protection often associated with clear coatings. Both are reported to be harmless to metals and components. The protective coatings work off during mold startups, eliminating any need for special cleaning. They are nonflammable and contain no silicone. Stoner, Inc., P.O. Box 65, Quarryville, PA 17566; (717) 786-7355.


U.S. Borax and Chemical Corp. has expanded its line of fire-retardant products. It is now offering Firebrake ZB-Fine, a fine grade of Firebrake ZB with a mean particle size of 2 to 4 microns, which is used as a flame retardant, smoke suppressant, and afterglow suppressant in PVC, epoxy, polyolefin, nylon, polyester, and rubber. In addition, U.S. Borax Research Corp. has introduced several experimental zinc borates: XPI-187, a dehydrated zinc borate suitable for use in polymers processed at 290 [deg.]C or higher; XPI-213, a zinc borate that can release 30% by weight of water starting at 100 [deg.]C; and XPI-193, an epoxy-coated zinc borate designed to improve its stability in water at high and low pH (i.e., pH greater than 9.5 or less than 3). Promoted as a fire retardant in polyurethanes is ammonium pentaborate, which dehydrates at 120 [deg.]C and is said to be a very good char promoter. U.S. Borax & Chemical Corp., 3075 Wilshire Blvd., Los Angeles, CA 90010; (213) 251-5400.


The Humko Chemical Division of Witco Corp. has introduced the MoldPro line of internal processing agents designed to impart mold release and flow and extrusion enhancement. All are free-flowing powders, and their unique chemical compositions are claimed to provide high thermal stability. MoldPro numerical designations and uses ared 613-621--elastomer processing; 678--polystyrene mold release; 716--PET mold release; 759--nylon mold release and flow; 777--foamed polyethylene; 800--polycarbonate mold release; and 802--phenolic mold release. Humko Chemical Div., Witco Corp., P.O. Box 125, Memphis, TN 38101; (901) 320-5800.
COPYRIGHT 1989 Society of Plastics Engineers, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1989 Gale, Cengage Learning. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Publication:Plastics Engineering
Article Type:buyers guide
Date:Jun 1, 1989
Previous Article:Optimizing formulations using mixture design techniques.
Next Article:Optimizing hot plate welding of thermoplastics.

Terms of use | Copyright © 2017 Farlex, Inc. | Feedback | For webmasters