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The Rebirth of Polypropylene: Supported Catalysts. By Edward P. Moore, Jr. 123 pages. Price, $58. Hanser Gardner Publications, Cincinnati, OH (1998).

This book provides a comprehensive history of the discovery and technological development of polypropylene (and later myriad derivative polymers) over four decades. It guides readers through multiple generations of scientific and technological advances and the far-reaching discovery of the active Mg[Cl.sub.2] catalyst support system.


Rubber covered rolls. A multi-client study will cover "Quality in rubber covered rollers - remote sensing of rubber-to-metal bond integrity. The objective of this program is to establish the feasibility of using ultrasonic techniques to remote sense the bond integrity in rubber coated rollers. The study will examine specially constructed rollers, new rollers of different sizes and used rollers. (Rapra Technology Ltd.)

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Powder coatings. "Powder Coatings, IV," a multi-client, techno-economic marketing study, will provide information on the current state of industry technology, U.S. statistical data on powder coatings for each end use product for 1999 with projections to 2004, appraisal of trends, growth rates and opportunities, etc. (Skeist)

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Wear/friction materials. Tribological characteristics of engineering thermoplastics, including Stanyl, Plaslube and Nylatron, are featured in the company's 28-page, four-color brochure. This literature assists the plastics parts designer in understanding the fundamentals of polymer wear and friction. Methods of characterizing these tribological properties, as well as the effective interpretation of the results in relating their use to dynamic applications, are explored. In addition to information about individual material capabilities, the brochure examines the complex inter-relationship of application conditions to the successful operation of dynamic thermoplastic parts. A compact disc is included containing more detailed information. (DSM Engineering Plastics)

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Styrenic block copolymers. An updated selection guide on styrenic block copolymers is available from the company. The family of styrenic block copolymers is composed of styrene-butadiene-styrene (SBS) and styrene-isoprene-styrene (SIS) types of both linear and radial, and diblock configurations. These block polymer structures are characterized by a combination of high tensile strength and rubber-like elasticity with the ease of thermoplastic or solution processing. Vulcanization or chemical crosslinking are not required to produce tough, rubbery articles. (Loos & Dilworth)

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Liquid oligomer. A data sheet describes advantages of Nikanol as a xylene-formaldehyde resin. It is a light colored, low viscous liquid oligomer with an average molecular weight of 250-700. Nikanol is used in phenolic resins, epoxy resins, etc. (Mitsubishi Gas Chemical America)

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Manufacturing control. The Mix Vision system is featured in a six-page, four-color brochure that highlights the system functions and architecture. The systems are scaleable from basic mixing cycle control to complete mixing process integration, including weighing, mixing, mills, batch-offs, scheduling, inventory, management information, laboratory and business system links. Running under Windows NT, Mix Vision utilizes Microsoft SQL Server, providing an open architecture. The system is said to greatly enhance ISO 9000 implementation and is year 2000 ready. (Mesabi Control Engineering)

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Specialty chemicals. This producer of specialty chemicals offers an updated product catalog providing an expanded resource for the company's monomers, oligomers, photoinitiators, metallic coagents and other specialty chemicals for paint and coatings, inks, adhesives, rubber and numerous other specialty applications. It also features the M-Cure line of acrylated resins for epoxy/amine systems. Chemicals are cross-referenced by product name, chemical and physical properties, features and/or applications. (Sartomer)

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Dispersion polymers. Ultimer polymer products, produced through a polymerization technology that permits the manufacture of these widely used polymers as fine particles dispersed in aqueous solutions of the inorganic salt ammonium sulfate, are featured in a one-page technical bulletin. Benefits of the water-based dispersion polymers are listed. (Nalco)

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Melt-processible rubber. A four-page brochure summarizes the high-performance capabilities of Alcryn MPR for automotive applications. The literature highlights how manufacturers can stay competitive by using Alcryn MPR to produce high-quality automotive parts while controlling costs. It also provides comparative data demonstrating that A1cryn MPR is said to be the alternative to soft thermoplastic elastomers and vulcanized rubber, as it provides superior durability and processes easily on standard plastics machinery, according to the literature. Current applications include weather seals, gaskets, cable covers, outer-belt strips, reveal moldings, fuse holders, seat-belt guides, hinge bumpers, and windshield and backlight lace. The brochure describes application benefits, including anti-noise and anti-vibration performance, and resistance to abrasion, weather, ozone, alcohol, oil, grease, fuel, chemicals and UV light. (Advanced Polymer Alloys)

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Silicone rubbers. HV 1650/50, 1660/ 65 and 1660/75 silicone rubbers are featured in a two-page technical bulletin. These products are said to feature inherently good hydrophobic recovery and excellent tracking resistance, improved mold release and excellent wet electrical performance, according to the literature. All three products are fully compounded, pigmented, catalyzed, high consistency silicone rubbers. Shore hardnesses range from 50 to 75. The literature provides typical properties, applications and directions for use and storage. (Dow Corning)

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No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1999, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Rubber World
Article Type:Brief Article
Geographic Code:1USA
Date:Aug 1, 1999
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