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BAYER PRESENTS TECHNICAL PAPER ON HNBR/EVM BLENDS FOR AUTOMOTIVE POWERTRAIN APPLICATIONS AT ACS RUBBER EXPO 03
14 October 2003 - Bayer MaterialScience AG
| Hydrogenated acrylonitrile butadiene rubber (HNBR) compounds provide excellent mechanical properties, as well as heat, oil and fluid resistance in many demanding automotive applications. |
Ethylene vinyl acetate copolymer (EVM) compounds possess excellent compression set, heat resistance and processability. The unique combination of both Bayer's Therban® HNBR and Levapren® EVM results in elastomeric compounds which exhibit good processability and desired compound properties to meet automotive sealing applications. In fact, blends of HNBR and EVM may even be considered as AEM replacements in specific applications. This presentation reviews the effect on key compound properties upon incremental addition of EVM into an HNBR formulation and then focus on blends containing EVM as the major component. The performance of the EVM/HNBR blend in several automotive fluids, including oil, grease, power steering and transmission, is highlighted.
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About: Bayer MaterialScience AG
Bayer Corporation, headquartered in Pittsburgh, is part of the worldwide Bayer Group, an international health care, nutrition and innovative materials group based in Leverkusen, Germany. Bayer employs 23,300 in North America with net North American sales of 8.8 billion euros in 2003. Bayer’s three operating business areas – HealthCare, CropScience and MaterialScience, improve people’s lives through a broad range of essential products that help diagnose and treat diseases, protect crops and advance automobile safety and durability.Bayer MaterialScience AG is one of the world's largest producers of polymers and high-performance plastics. The main customers for Its innovative developments in coatings, adhesives, insulating materials and sealants, polycarbonates and polyurethanes are the automotive and construction industries, the electrical/electronics segment and manufacturers of sports and leisure goods, packaging, and medical devices. |
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