Patent ID: 6054518
Filing Date: 2000-04-25
Classification: C08G,C08K,C08L

Abstract:
A silicone rubber composition, comprising(A) 100 parts by weight of an organopolysiloxane containing at least two aliphatic unsaturated groups and having an average compositional formula:R.sub.a.sup.1 SiO.sub.(4-a)/2wherein R.sup.1 independently represents halogen- or cyano- substituted or unsubstituted monovalent hydrocarbon groups having 1 to 10 carbon atoms, and letter a is a positive number of 1.90 to 2.05,(B) about 5 to 100 parts by weight of a reinforcing silica,(C) an amount effective to cure the organopolysiloxane (A) of a curing agent, and(D) about 0.5 to 5 parts by weight of an ester wax of the following formula (I): ##STR3## wherein R independently represents alkyl groups of 1 to 4 carbon atoms, and letter n independently represents integers such that the ester wax has a melting point of 40 to 150.degree. C. under atmospheric pressure.