Silicone rubber sponge composition and sponge articles...

Details Silicone rubber sponge composition and sponge articles... Silicone rubber sponge composition and sponge articles...

C - Chemistry, Metallurgy

08

L

C08L 83/04 (2006.01) C08G 77/38 (2006.01) C08J 9/32 (2006.01)

Patent

CA 2341054

A silicone rubber sponge composition, a silicone rubber sponge, and a process 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 to 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 the 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.

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