Elastomeric silicone sponge

Details Elastomeric silicone sponge Elastomeric silicone sponge

C - Chemistry, Metallurgy

08

L

18/24

C08L 83/04 (2006.01) C08J 9/12 (2006.01) C08J 9/28 (2006.01)

Patent

CA 1185750

Abstract A method of producing silicone elastomeric sponge is disclosed. The method comprises freezing an aqueous silicone emulsion, then thawing and drying to produce a silicone sponge containing irregular closed cells. The aqueous silicone emulsion comprises water, an anioni??lly stabilized hydroxyl endblocked polydiorgano- siloxane, an organic tin compound, and a colloidal silica, the emulsion having a pH of from 9 to 11.5 inclusive. The sponge produced by the method is useful as insulation and gasketing at high and low temperatures.

426325

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