Cross-linked organofunctional polysiloxanes and method for prepa

Details Cross-linked organofunctional polysiloxanes and method for prepa Cross-linked organofunctional polysiloxanes and method for prepa

1992-06-03

1995-07-25

Bleutge, John C.

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

Synthetic resins

From silicon reactant having at least one...

528 25, 528 31, 525478, C08G 7706

Patent

active

054363080

ABSTRACT:
The present invention is novel organofunctional polysiloxane and organofunctional cyclosiloxane compositions and a process for their preparation. The process for preparation of these siloxane compositions comprises contacting a mixture containing a cyclo(organohydrogen)siloxane or a poly(organohydrogen)siloxane, a mono-.alpha.-olefin, and a .alpha.,.OMEGA.-triene with a platinum catalyst, at a temperature within a range of 50.degree. C. to 200.degree. C. The products of this process are cross-linked organofunctional polysiloxanes and cross-linked organofunctional cyclosiloxanes.

REFERENCES:
patent: 2851473 (1958-09-01), Wagner
patent: 3159662 (1964-12-01), Ashby
patent: 3440263 (1969-04-01), Brennan
patent: 3440263 (1969-04-01), Brennan
patent: 4166078 (1979-08-01), Betson

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