Patent ID: 6387971
Filing Date: 2002-05-14
Classification: C08J

Abstract:
A silicone rubber sponge composition comprising(A) 100 parts by weight of an organopolysiloxane of the following average compositional formula (1): R1aSiO(4-a)/2â€ƒâ€ƒ(1) â€ƒwherein R1 is independently a substituted or unsubstituted monovalent hydrocarbon group and â€œaâ€  is a positive number of 1.95 to 2.04, (B) 1 to 100 parts by weight of finely divided silica having a specific surface area of at least 50 m2/g, and (C) 0.01 to 50 parts by weight of an organic azo compound of the following formula (I): â€ƒwherein R2 and R3 are independently alkylene groups, R4 and R5 are independently hydrogen or substituted or unsubstituted monovalent hydrocarbon groups.