Particulate material comprising a platinum-containing hydrosilylaton catalyst and a diorganopolysilane
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United States of America Patent
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May 14, 1991
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N/A
app pub date -
Jun 22, 1989
filing date -
Jun 29, 1988
priority date (Note) -
Expired
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Abstract
This invention provides particulate catalyst compositions comprising a platinum-containing hydrosilation reaction catalyst and a polydiorganosilane exhibiting a softening point of from 50.degree. to 200.degree. C. The average particle size of the particulate does not exceed 100 micrometers, and the surface layer of the particulate is substantially free of said catalyst. Curable organopolysiloxane compositions containing the present catalyst compositions exhibit excellent storage stability.
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