Rubber composition

C - Chemistry – Metallurgy – 08 – L

Patent

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400/4905, 400/64

C08L 9/02 (2006.01) C08J 3/24 (2006.01) C08L 21/00 (2006.01) C08L 33/08 (2006.01) C08L 33/20 (2006.01)

Patent

CA 1190343

Abstract of the Disclosure A rubber composition comprising (A) 10-90% by weight of a terpolymer consisting of a conjugated diole- fin, an .alpha., .beta.-unsaturated nitrile and an .alpha., .beta.-unsaturated carboxylic ester (preferably, a terpolymer consisting of 20-50% by weight of a conjugated diolefin, 10-40% by weight of an .alpha., .beta.-unsaturated nitrile and 10-70% by weight of an .alpha., .beta.-unsaturated carboxylic ester), (B) 10-90% by weight of acrylic rubber vulcanizable with sulfur and (C) 0-40% by weight of a copolymer consisting of a conjugated diolefin and an .alpha. ,.beta.-unsaturated nitrile having a combined .alpha. ,.beta.-unsaturated nitrile content of 10-60% by weight. Said rubber composition is inexpen- sive, excellent in processability, oil resistance, heat resistance and ozone resistance and small in mold- contamination and has a small compression set.

382103

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