Organofunctional polysiloxanes and method for preparation

Details Organofunctional polysiloxanes and method for preparation Organofunctional polysiloxanes and method for preparation

1992-05-26

1993-07-06

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 25, 528 31, 525479, C08G 7706

Patent

active

052255115

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, a .alpha.,.OMEGA.-triene, and a triorganosilyl source, with a platinum catalyst, at a temperature within a range of 50.degree. C. to 200.degree. C. The products of this process are organofunctional polysiloxanes and organofunctional cyclosiloxanes.

REFERENCES:
patent: 2851473 (1958-09-01), Wagner et al.
patent: 3440263 (1969-04-01), Brennan
patent: 4166078 (1979-08-01), Getson

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