Coprecipitated silicate-carbinol particles

Details Coprecipitated silicate-carbinol particles Coprecipitated silicate-carbinol particles

1991-05-10

1992-06-02

Bleutge, John C.

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

Synthetic resins

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

525 61, C08L 2904

Patent

active

051187582

ABSTRACT:
A fine powder is obtained by first dissolving polyvinylalcohol and tetraalkoxysilicate in a common solvent to obtain a reaction product, then spraying a fine mist of a solution of the reaction product into a coagulating bath of a solvent which is miscible with the common solvent, but a poor solvent for the reaction product. After drying, the fine particles obtained are useful as filler in polydiorganosiloxane compositions.

REFERENCES:
patent: 4214057 (1980-07-01), Ishihara et al.
patent: 4423095 (1983-12-01), Blizzard
patent: 4617239 (1986-06-01), Maruyama et al.
patent: 4954554 (1990-09-01), Bunye

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