Silicone elastomer forming compositions

Details Silicone elastomer forming compositions Silicone elastomer forming compositions

1984-03-28

1984-12-25

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 89, 521117, 521121, 521154, C08J 910

Patent

active

044904886

ABSTRACT:
Composition which comprises a mixture of (A) a polydiorganosiloxane having a viscosity of from 200 to 100,000 cP at 25.degree. C. and having at least two silicon-bonded vinyl groups, (B) an organohydrogensiloxane, (C) a platinum catalyst, (D) a substance which inhibits the reaction between (A) and (B) in the presence of (C) e.g. an acetylenic alcohol, and (E) a blowing agent selected from p,p'-oxybis(benzenesulphonylhydrazide) and dinitrosopentamethylene tetramine.
The composition can be converted by heat into an elastomeric sponge and is useful for the production of articles such as seat cushions, heat and sound insulation and shock absorbers.

REFERENCES:
patent: 2857343 (1958-10-01), Berridge
patent: 2951819 (1960-09-01), Wade
patent: 3425967 (1969-02-01), Modic
patent: 3677981 (1972-07-01), Wade et al.
patent: 4024091 (1977-05-01), Lee et al.
patent: 4026843 (1977-05-01), Kittle
patent: 4026844 (1977-05-01), Kittle et al.
patent: 4026846 (1977-05-01), Lee et al.

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