SILICONE RUBBER SPONGE COMPOSITION AND SPONGE ARTICLES THEREFROM

摘要

A silicone rubber sponge composition, a silicone rubber sponge, and a proces s for making a silicone rubber sponge. The silicone rubber sponge composition comprises ( A) 100 parts by weight of an organopolysiloxane gum described by average structural unit R a SiO(4-a)/2, where R is a monovalent hydrocarbon radical or haloalkyl and a is 1.95 to 2.05, (B) 1 t o 400 parts by weight of an inorganic filler; (C) 0.01 to 50 parts by weight hollow thermoplastic resin particles (D) a mixture of (a) water-soluble silicone and (b) water in an amount such that t he water in the mixture is equivalent to 0.01 to 10 parts by weight per 100 parts by weight of component (A), and (E) a curing agent in an amount sufficient to cure the composition.