Preparation of polyorganosiloxane resins

Details Preparation of polyorganosiloxane resins Preparation of polyorganosiloxane resins

1991-11-14

1993-03-30

Bleutge, John C.

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

Synthetic resins

From silicon reactant having at least one...

528 10, 528 14, C08G 7706

Patent

active

051985187

ABSTRACT:
Polyorganosiloxane resins are prepared through the hydrolytic condensation of organoalkoxysilanes and/or oligomers thereof. By adding a low volatile, weakly acidic compound to the reaction mixture for adjusting the reaction mixture to pH 2-5, the alcohol by-product can be distilled off from the reaction mixture without altering the polyorganosiloxane resins.

REFERENCES:
patent: 4625011 (1986-11-01), Kosal et al.
patent: 4722987 (1988-02-01), Ikeno et al.
patent: 4766192 (1988-08-01), Gvozdic
patent: 4888405 (1989-12-01), Gamon et al.

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