Silicone foams

Details Silicone foams Silicone foams

1990-10-16

1991-04-23

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521134, 525477, 528 15, 528 31, C08J 902

Patent

active

050101153

ABSTRACT:
The invention relates to silicone foams.
It concerns a silicone foam composition consisting of two or more components, the said composition being capable of rapid cure at 20.degree. C. on mixing its components, to give a foamed mass having a density of less than 200 kg/m.sup.3, characterised in that it comprises (A) one or more polysiloxanes having at least three alkylhydrogensiloxane units per molecule, (B) one or more polydiorganosiloxanes having at least two siloxane units of the formula ##EQU1## in which R represents a monovalent hydrocarbon group containing from 1 to 20 carbon atoms, Q represents a hydroxylated alkylene or alkoxylene chain, a has a value of 0, 1 or 2 and the value of b is 1 or 2 and c is a platinum catalyst for promoting the reaction between the components.
Useful for the production of medical dressings.

REFERENCES:
patent: 4855328 (1989-08-01), Smith
patent: 4870115 (1989-09-01), Itoh et al.
patent: 4871781 (1989-10-01), Weise
patent: 4879317 (1989-11-01), Smith et al.
patent: 4931485 (1990-06-01), Inoue et al.
patent: 4954533 (1990-09-01), Modic

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