| abstract |
(57) [Abstract] [Purpose] When a partially hydrogenated unsaturated nitrile-conjugated diene copolymer having an iodine value of 20 or less is vulcanized with a sulfur vulcanizing agent, it is represented by Chemical Formula 1 as a vulcanization accelerator. By using the tellurium dithiocarbamate compound, a rubber composition having excellent heat resistance after vulcanization, strength properties, compression set properties, and particularly exothermic properties is obtained. [Structure] About 100 parts by weight of a partially hydrogenated unsaturated nitrile-conjugated diene-based copolymer having an iodine value of 20 or less, a sulfur-based vulcanizing agent and a tellurium dithiocarbamate compound as a vulcanization accelerator are used in an amount of about 0.1. A vulcanizable rubber composition is compounded in an amount of 5 parts by weight. |