Silicone foam forming composition

Details Silicone foam forming composition Silicone foam forming composition

Filed on

1992-12-09

Date issued

1993-07-06

Examiner

Foelak, Morton

Patent Class

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

SubClass

Synthetic resins

SubSubClass

Cellular products or processes of preparing a cellular...

Other Related Categories

521 92, 521 93, 521123, 521154, 528 15, 528 17, G08J 902

Type

Patent

Status

active

Patent number

052254526

Description

ABSTRACT:
A foam forming composition comprises (a) one or more polysiloxanes having not less than three alkylhydrogen siloxane units per molecule, (b) one or more polysiloxanes having not less than two silicon-bonded hydroxyl group per molecule, (c) at least one liquid organic titanium compound and (d) a catalyst. Reaction between the organic titanate (e.g. tetraisopropyltitanate) and the hydroxy functional polysiloxane rapidly increases viscosity of the mixture to restrict flow of the composition as it cures to form a foam within 240 seconds of mixing. A vinyl polysiloxane may be incorporated.

REFERENCES:
patent: 4433069 (1984-02-01), Harper

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