Patent ID: 8288483

Claim:
An acrylic rubber composition comprising a diurethane compound represented by a general formula: R 2 (SO 2 ) m (CH 2 ) n OCONHâ€”R 1 â€”NHCOO(CH 2 ) n (SO 2 ) m R 2 (wherein R 1 is a C 1 to C 20 linear or branched, bivalent aliphatic alkylene group, a bivalent alicyclic cycloalkylene group, or a bivalent aromatic group; R 2 is a fluorenyl- containing group, n is 0, 1, or 2, and m is 0 or 1), serving as a vulcanizing agent in a ratio of 0.1 to 10 parts by weight and 1,8-diazabicyclo[5.4.0]undecene-7, serving as a basic vulcanization accelerator in a ratio of 0.01 to 1 parts by weight, based on 100 parts by weight of the multivalent amine crosslinkable group-containing acrylic rubber.