Preparation of silicone foams of low density and small cell size

Details Preparation of silicone foams of low density and small cell size Preparation of silicone foams of low density and small cell size

1994-09-30

1995-07-25

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521117, 521154, C08J 902

Patent

active

054362741

ABSTRACT:
Silicone foams having low density and small cell size are prepared by blending a mixture of at least one polyorganosiloxane having vinyl groups attached to silicon, at least one hydride polysiloxane, a mixture of at least one monohydroxyaliphatic compound and at least one dihydroxyaliphatic compound each of which contains at least 5 carbon atoms in an equivalent ratio in the range of about 1.5-4.0:1, water, a platinum group catalyst and a filler. Said mixture comprises at least about 5% of the combination of silica and silicon-containing compounds having a high proportion of Q units.

REFERENCES:
patent: 4026843 (1977-05-01), Kittle
patent: 4026844 (1977-05-01), Kittle et al.
patent: 4418157 (1983-11-01), Modic
patent: 4590222 (1986-05-01), Bauman
patent: 4871781 (1989-10-01), Weise

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