Heat-curable silicone elastomer compositions

Details Heat-curable silicone elastomer compositions Heat-curable silicone elastomer compositions

1995-04-24

1996-06-18

Marquis, Melvyn I.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523212, 523204, 523210, 528 15, C08K 900

Patent

active

055278370

ABSTRACT:
In a heat-curable silicone elastomer composition comprising (A) an organopolysiloxane having at least two aliphatic-unsaturated hydrocarbon groups each bonded to a silicon atom and (B) an organohydrogenpolysiloxane having at least two hydrogen atoms each bonded to a silicon atom, there is blended (C) a hydrosilylating catalyst in the form of a hydrosilylation-promoting compound on a porous filler having a mean particle size of 0.1-100 .mu.m and a pore volume of 0.5-5 cm.sup.3 /g. The composition is stable during storage at room temperature, but quickly curable at elevated temperatures through hydrosilylation reaction.

REFERENCES:
patent: 4784879 (1988-11-01), Lee et al.
patent: 5017654 (1991-05-01), Togashi et al.
patent: 5216104 (1993-06-01), Okami et al.
Abstract of JP 53-41707.

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