Crosslinkable rubber composition

摘要

A crosslinkable, rubber composition includes, as essential components:
(A) an ethylene-±-olefin-nonconjugated polyene random copolymer rubber in which the nonconjugated polyene has a terminal vinyl group-containing norbornene compound represented by the following general formula (1) or (II),
wherein n is an integer of 0 to 10, R 1 is H or an alkyl group, and R 2 is H or an alkyl group,
wherein R 3 is H or an alkyl group, and which has a viscosity of not less than 10 Pa·s and less than 1,000 Pa·s at 25°C under a shear rate of 10 s -1 ;
(B) an organopolysiloxane which has three repeating units of siloxane represented by the following formula and which has three Si-bonded hydrogen atoms per molecule,
wherein R 4 is a monovalent hydrocarbon group;
(C) a reinforcing filler;
(D) a curing catalyst; and
(E) a curing reaction retarder.