Preparation of organopolysiloxane

Details Preparation of organopolysiloxane Preparation of organopolysiloxane

1991-09-11

1992-07-14

Bleutge, John C.

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

Synthetic resins

From silicon reactant having at least one...

528 41, 528 34, 528 21, 528 22, 528 23, 528 37, 528 14, 556462, C08G 7706

Patent

active

051303981

ABSTRACT:
Organopolysiloxanes obtained by heating organocyclopolysiloxanes in the presence of alkali catalysts to effect equilibration reaction contain residual silanol groups. The organopolysiloxanes can be stabilized by effecting silylation reaction by adding silylketeneacetal compounds to them, thereby blocking the residual silanol groups through silylation.

REFERENCES:
patent: 4719276 (1988-01-01), Stebleton
patent: 4780554 (1988-10-01), Quirk et al.
patent: 4888405 (1989-12-01), Gamon et al.

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