Storage stable, foamable two-part polyorganosiloxane composition

Details Storage stable, foamable two-part polyorganosiloxane composition Storage stable, foamable two-part polyorganosiloxane composition

1985-03-25

1985-10-15

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 91, 521 93, 521 97, 521127, 521131, 521154, 521 78, 525477, 528 18, 528 33, 528 34, C08J 914

Patent

active

045475296

ABSTRACT:
Polyorganosiloxane foams are obtained by blending, dispensing and curing two-part polyorganosiloxane compositions comprising a liquid hydroxyl endblocked polydimethylsiloxane, a liquid alkyl orthosilicate as the curing agent, a catalytically effective amount of a tin compound, a blowing agent and, as a foam stablilizer, a resinous organosiloxane copolymer comprising trimethylsiloxy units, SiO.sub.4/2 units and a specified class of fluorine-containing organosiloxane units.

REFERENCES:
patent: 3328349 (1967-06-01), Lentz
patent: 4026842 (1977-05-01), Lee et al.
patent: 4026844 (1977-05-01), Kittle et al.
patent: 4026845 (1977-05-01), Kim et al.
patent: 4229548 (1980-10-01), Sattlegger et al.
patent: 4368279 (1983-01-01), Modic et al.
patent: 4418157 (1983-11-01), Modic

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