| abstract |
(57) [Summary] [Purpose] In a rubber compound based on silicone rubber and hydrogenated nitrile rubber, the mutual dispersibility of both rubbers is increased, the mechanical properties of the rubber crosslinked product are improved, and heat resistance, Improves cold resistance and oil resistance. [Structure] (A) 100 parts of a polymer component composed of 98 to 2% of (a) hydrogenated nitrile rubber having a Mooney viscosity of 70 or less and (b) 2 to 98% of organopolysiloxane, (B) 200 parts or less of a filler, and (C) Peroxide crosslinking agent 0.3 A rubber composition basically consisting of 10 parts. This rubber composition comprises a mixture of the above hydrogenated nitrile rubber and a filler, a mixture of organopolysiloxane and a filler, and, if desired, an additional filler, and then a peroxide crosslinking agent. It is obtained by doing. |