Heat-curable silicone elastomer compositions
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United States of America Patent
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Jun 18, 1996
Grant Date -
N/A
app pub date -
Apr 24, 1995
filing date -
Apr 25, 1994
priority date (Note) -
Expired
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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.
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