Elastomeric silicone sponge

Details Elastomeric silicone sponge Elastomeric silicone sponge

1982-06-25

1983-07-05

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 65, 521154, C08J 928, C08J 930

Patent

active

043919219

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 anionically stabilized hydroxyl endblocked polydiorganosiloxane, 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.

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Carl, "Neoprene Latex", E. I. DuPont de Nemours and Co., 1962, pp. 89-92.
Carl, "Neoprene Latex", E. I. DuPont de Nemours and Co.(Inc.), 1962.

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