Method for producing silicone aqueous emulsion compositions

Details Method for producing silicone aqueous emulsion compositions Method for producing silicone aqueous emulsion compositions

1984-09-24

1985-08-13

Jacobs, Lewis T.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524588, 524714, 524837, 524838, 524863, 524864, C08K 336

Patent

active

045351090

ABSTRACT:
Described is a method of producing silicone aqueous emulsion compositions which cure at room temperature by the removal of water to form elastomeric coatings or films with superior surface gloss, good adhesion to substrates, and rustproofness. The method prepares an emulsion of polydiorganosiloxane having at least two hydroxyl groups per molecule, colloidal silica or alkali metal silicate, curing catalyst, emulsifier, and water, the emulsion having a pH of from 9 to 12. After a period of ripening for a period of time, so that an elastomeric material will be formed when water is removed at room temperature, an amino-functional silane or its partial hydrolyzate is added to give the emulsion its improved properties.

REFERENCES:
patent: 3004871 (1961-10-01), Leavitt
patent: 4221688 (1980-09-01), Johnson et al.
patent: 4228054 (1980-10-01), Ona et al.
patent: 4248751 (1981-02-01), Willing
patent: 4427811 (1984-01-01), Elias et al.
patent: 4496687 (1985-01-01), Okada et al.

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