Covulcanizable rubber composition of partially hydrogenated nitrile rubber and chlorinated ethylene-propylene copolymer

摘要

PCT No. PCT/JP92/00386 Sec. 371 Date Jan. 27, 1993 Sec. 102(e) Date Jan. 27, 1993 PCT Filed Mar. 27, 1992 PCT Pub. No. WO92/17542 PCT Pub. Date Oct. 15, 1992.A covulcanizable rubber composition including a partially hydrogenated unsaturated nitrile-conjugated diene copolymer having an iodine value not larger than 120, a chlorinated ethylene-propylene copolymer and a vulcanizer. The composition exhibits an improved processing property when mixed, and provides a vulcanized rubber having an improved constant-elongation fatigue resistance.