Composition containing ethylene/propylene/diene copolymer and polyalkylene/olefin copolymer.U.S. patent: 7,091,282 Issued: August 15, 2006 Inventors: Zhong-Ren Chen and Christine M. Rademacher Assigned: Bridgestone Key statement: A composition for forming a sidewall side·wall n. 1. A wall that forms the side of something. 2. A side surface of an automobile tire, between the edge of the tread and the wheel rim. Noun 1. for a tire includes an ethylene/propylene/diene terpolymer ter·pol·y·mer n. A polymer that consists of three distinct monomers. [Latin ter, thrice; see trei- in Indo-European roots + polymer.] and a polyalkylene copolymer copolymer: see polymer. . The polyalkylene has a high degree of crystallinity with 90% by weight ethylene. The rubber composition markedly increases the resistance to crack growth. |
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