| abstract |
PROBLEM TO BE SOLVED: To provide a crosslinkable nitrile rubber composition which gives a rubber cross-linked product having a very large tensile stress. SOLUTION: A highly saturated nitrile rubber having an α, β-ethylenically unsaturated nitrile monomer unit and an α, β-ethylenically unsaturated dicarboxylic acid monoester monomer unit and having an iodine value of 120 or less ( The above problem is solved by a crosslinkable nitrile rubber composition comprising a), a silicate (b) of an element of Group 2 or Group 13 of the periodic table, and a polyamine-based crosslinking agent (c). Preferably, the crosslinkable nitrile rubber composition of the present invention has a carbon black content of 2% by weight or less, and preferably the silicate (b) of the group 2 or group 13 element in the periodic table is an aminosilane cup. It has been treated with a ring agent. [Selection figure] None |