| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a silicone rubber composition exhibiting oil bleeding property without using phenyl silicone oil, relatively small in blended amount of a bleeding component, having low price and further small in reduction of physical property and less in residual strain even when high heat is added for long time.SOLUTION: There is provided a silicone rubber composition containing (A) organopolysiloxane having polymerization degree of 3000 or more represented by the general formula RSiO, where R is an unsubstituted or substituted monovalent hydrocarbon group and of which 0.0001 to 0.5 mol% is an alkenyl group and a is a positive number of 1.95 to 2.05, (B) reinforced silica having a specific surface area of 150 m/g or more and an average particle diameter of 1 to 10 nm, (C) alkyldiphenyl ether represented by the general formula (1) and (D) a curing agent. (1), where R is an alkyl group having 4 to 20 carbon atoms and n is 1 to 3.</p> |
