Low density silicone foam composition and method for making

Details Low density silicone foam composition and method for making Low density silicone foam composition and method for making

C - Chemistry, Metallurgy

08

L

403/51

C08L 83/07 (2006.01) C08J 9/00 (2006.01) C08J 9/12 (2006.01) C08L 83/08 (2006.01)

Patent

CA 1218800

LOW DENSITY SILICONE FOAM COMPOSITION AND METHOD FOR MAKING ABSTRACT OF THE DISCLOSURE A method of reducing the density of a silicone foam is provided comprising mixing with a foamable silicone composition having a base polydiorganosiloxane, an effective amount of a resinous copolymer selected from the group consisting of resinous copolymers of R3SiO0.5 units and SiO2 units, and ratio of R3SiO0.5 units ranging from 0.25 to 0.8:1, and resinous copolymers formed from R3SiO0.5 units, R?SiO units and SiO2 units, the ratio of R3SiO0.5 to SiO2 units ranging from 0.25 to 0.8:1 and the ratio of R?SiO to SiO2 units ranging from 0 to 0.1:1, and thereafter simultane- ously foaming and curing the mixture.

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