Silicone emulsions

Details Silicone emulsions Silicone emulsions

1989-02-27

1990-09-04

Marquis, Melvyn I.

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

Synthetic resins

From sulfur-containing reactant

524386, 524387, 525100, C08K 505

Patent

active

049545540

ABSTRACT:
Aqueous emulsions of curable silicone compositions provide cured coatings having improved gloss and/or water-repellancy and/or adhesive release if formulated to contain polyvinylachohol having a degree of hydrolysis of 90 mol % or more. The extent of improvement is directly related to the degree of hydrolysis of the PVA. PVA having an average degree of hydrolysis of from 94 to 99 mol % is particularly effective for improving these properties of cured coatings. Conveniently, a mixture of two or more commercially available PVAs having different degrees of hydrolysis can be used to arrive at a PVA having a desired degree of hydrolysis.

REFERENCES:
Encyclopedia of Polymer Science and Technology; vol. 14, 1971, p. 157.

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