Abstract: Vulcanized rubber parts suitable to dampen vibrations generated by mechanical devices are disclosed. The parts are based on a cured composition comprising one or a mixture of a diolefin polymers, e.g., natural rubber, a halogenated copolymer of a C.sub.4 to C.sub.7 isomonoolefin, e.g., isobutylene, and a para-alkylstyrene, filler and a curing system. The vulcanized parts exhibit improved aging and high temperature resistance and reduced deterioration of dynamic properties after long term exposure to high temperatures.
Type:
Grant
Filed:
July 19, 1996
Date of Patent:
May 18, 1999
Assignee:
Exxon Chemical Patents, Inc.
Inventors:
Yamashita Shinichiro, Kenneth Odell McElrath, Jr.
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