Silicone rubber sponge composition and silicone rubber sponge us

Details Silicone rubber sponge composition and silicone rubber sponge us Silicone rubber sponge composition and silicone rubber sponge us

1997-04-28

2000-08-01

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

C08J 910

Patent

active

060967927

ABSTRACT:
A silicone rubber sponge composition obtained by compounding a polyorganosiloxane having an average degree of polymerization of 3,000 to 300,000, a reinforcing silica filler, 1,1'-azo-bis(1-acetoxy-1-phenylethane) as a foaming agent, and organic peroxides and/or addition reaction curing agents. The silicone rubber sponge composition can provide a silicone rubber sponge which has a high foaming ratio, has a fine and uniform cell structure, has excellent surface smoothness of the skin layer, does not show a surface tackiness, has a good compression set, and does not require a post cure of a long time.

REFERENCES:
patent: 3776885 (1973-12-01), Mac Leay
patent: 4129531 (1978-12-01), Rauer
patent: 4460748 (1984-07-01), Rauer
patent: 4983642 (1991-01-01), Nakano et al.
patent: 5120385 (1992-06-01), Takahashi et al.

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