Flame retardant heat-curable silicone compositions containing ce

Details Flame retardant heat-curable silicone compositions containing ce Flame retardant heat-curable silicone compositions containing ce

1978-01-13

1978-08-22

Jacobs, Lewis T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4575R, C08L 8304

Patent

active

041088255

ABSTRACT:
A silicone composition cures to a flame retardant silicone elastomer by heating. The composition contains 100 parts by weight of vinyl-containing polydiorganosiloxane fluid with a viscosity of 0.2 to 30 Pa s at 25.degree. C., an organohydrogensiloxane in an amount sufficient to provide from 1.2 to 3 silicon-bonded hydrogen atoms for every silicon-bonded vinyl group in the composition, from 5 to 100 parts by weight of reinforcing silica filler, a platinum catalyst providing at least 1 part by weight of platinum for every one million parts by weight of polydiorganosiloxane fluid, and from 0.1 to 3 parts of ceric hydrate. The flame retardant silicone composition is useful for potting, encapsulating, molding and extruding processes.

REFERENCES:
patent: 2823218 (1958-02-01), Speier
patent: 3821140 (1974-06-01), Milbert

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