Particulate material comprising a platinum-containing hydrosilyl

Details Particulate material comprising a platinum-containing hydrosilyl Particulate material comprising a platinum-containing hydrosilyl

1989-06-22

1991-05-14

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 31, 528 32, 525478, 42721336, C08G 7706

Patent

active

050157167

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.

REFERENCES:
patent: 4293677 (1981-10-01), Imai
patent: 4481341 (1984-11-01), Schlak et al.
patent: 4784879 (1988-11-01), Lee et al.

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