Silicone elastomer forming compositions

Details Silicone elastomer forming compositions Silicone elastomer forming compositions

C - Chemistry, Metallurgy

08

L

403/51

C08L 83/07 (2006.01) C08J 9/10 (2006.01) C08L 83/04 (2006.01) C08L 83/08 (2006.01)

Patent

CA 1221200

Abstract of the Disclosure SILICONE ELASTOMER FORMING COMPOSITIONS Composition which comprises a mixture of (A) a polydior- ganosiloxane having a viscosity of from 200 to 100,000 cP at 25°C and having at least two silicon-bonded vinyl groups, (B) an organohydrogensiloxane, (C) a platinum catalyst, (D) a substance which inhibits the reaction between (A) and (B) in the presence of (C) e.g. an acetylenic alcohol, and (E) a blowing agent selected from p,p'-oxybis(benzenesulphonylhydrazide) and dini- trosopentamethylene tetramine. The composition can be converted by heat into an elasto- meric sponge and is useful for the production of articles such as seat cushions, heat and sound insulation and shock absorbers.

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