| abstract |
containing unsaturated nitrile monomer units, 15 to 60% by weight of?,? - ethylenically unsaturated nitrile monomer units, and 1 to 60% by weight of?,? - ethylenically unsaturated dicarboxylic acid monoester monomer units and having iodine value of 120 or less A rubber composition comprising a nitrile rubber (A1) and 15 to 60% by weight of an?,? - ethylenically unsaturated nitrile monomer unit, wherein the content of the?,? - ethylenically unsaturated dicarboxylic acid monoester monomer unit is 0.9% (A2) having an iodine value of 120 or less and a polyamide resin (B), wherein the content ratio of the carboxyl group-containing highly saturated nitrile rubber (A1) and the highly saturated nitrile rubber (A2) Saturated nitrile rubber (A1): High saturated nitrile rubber (A2) "in a weight ratio of 2:98 to 98: 2. |