Method for the preparation of organopolysiloxane

Details Method for the preparation of organopolysiloxane Method for the preparation of organopolysiloxane

1992-01-27

1992-12-08

Marquis, Melvyn I.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528 12, 528 33, 528 36, 528 43, 556469, 556467, C08F28300

Patent

active

051699095

ABSTRACT:
A method for the preparation of an organopolysiloxane which contains in each molecule at least one phenyl group and at least one silicon-bonded hydrogen atom is disclosed, said method comprising reacting (I) an organopolysiloxane having a molecular weight not exceeding 100,000 and containing in each molecule at least one phenyl group and at least one alkoxy group with (II) 1,1,3,3-tetramethyldisiloxane, wherein the reaction is carried out in the presence of an aqueous hydrochloric acid solution, this aqueous solution preferably further comprising an alcohol.

REFERENCES:
patent: 2821518 (1958-01-01), Edelman
patent: 3155634 (1964-11-01), Pike

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