| 摘要 |
The present invention provides a cross-linked rubber that is excellent in both fuel oil resistance and cold resistance. A cross-linkable rubber composition in accordance with the present invention contains: a nitrile group-containing copolymer rubber [A] including less than 30 wt% ±,²-ethylenically unsaturated nitrile monomer units (a1), conjugated diene monomer units (b1), and ±,²-ethylenically unsaturated dicarboxylic acid monoester monomer units (d1), wherein at least part of the conjugated diene monomer units (b1) is hydrogenated; a nitrile group-containing copolymer rubber [B] including not less than 30 wt% ±,²-ethylenically unsaturated nitrile monomer units (a2) and conjugated diene monomer units (b2), wherein at least part of the conjugated diene monomer units (b2) may be hydrogenated; and an amine-based cross-linking agent. |
