Patent ID: 11498990

Abstract:
A crosslinkable rubber composition includes a carboxyl group-containing nitrile rubber (A); a carboxyl group-containing acrylic rubber (B); and a polyamine-based crosslinking agent (C), where a ratio of a weight of the carboxyl group-containing nitrile rubber (A) to a weight of the carboxyl group-containing acrylic rubber (B) is from 5:95 to 95:5. The carboxyl group-containing nitrile rubber (A) includes 5 to 60% by weight of α,β-ethylenically unsaturated nitrile monomer units, and α,β-ethylenically unsaturated monocarboxylic acid ester monomer units. The carboxyl group-containing nitrile rubber (A) has an iodine value of 120 or less.