| abstract |
A cross-linkable nitrile rubber composition comprising a nitrile rubber (a) containing 0.1 to 15 wt% of α,β-ethylenically unsaturated nitrile monomer units, 1 to 10 wt% of α,β-ethylenically unsaturated dicarboxylic acid monoester monomer units, 40 to 75 wt% of α,β-ethylenically unsaturated monocarboxylic acid ester monomer units, and 20 to 58.9 wt% of diene monomer units and/or α-olefin monomer units, and a polyamine-based cross-linking agent (b), wherein a ratio of content of the polyamine-based cross-linking agent (b) with respect to 100 parts by weight of the nitrile rubber (a) is 0.1 to 20 parts by weight is provided. |