Method for the preparation of a higher alkoxy-substituted organo

Details Method for the preparation of a higher alkoxy-substituted organo Method for the preparation of a higher alkoxy-substituted organo

1991-09-13

1992-09-15

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

528 15, 528 29, 528 31, C08G 7706

Patent

active

051479656

ABSTRACT:
The invention provides a method for the preparation of a higher alkoxy-substituted organopolysiloxane having, in a molecule, at least one alkoxy group of 4 to 30 carbon atoms bonded to the silicon atom. The method comprises: mixing an organohydrogenpolysiloxane, a higher aliphatic alcohol to provide the desired alkoxy groups, a platinum compound as a catalyst for the dehydrogenation reaction between silicon-bonded hydrogen atoms and the alcohol and an organic acid, e.g., acetic and citric acids, as a co-catalyst to promote the reaction; and heating the mixture.

REFERENCES:
patent: 2967171 (1961-01-01), Baines et al.
patent: 3354101 (1967-11-01), Williams et al.
patent: 3541127 (1970-11-01), Beattie et al.

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