Method of improving adhesion of rubbery copolymers to glass

Details Method of improving adhesion of rubbery copolymers to glass Method of improving adhesion of rubbery copolymers to glass

1975-03-25

1976-05-25

Husack, Ralph

Coating processes

With post-treatment of coating or coating material

Heating or drying

260 296MN, 260 332EP, 260836, 427379, 427387, 427407, 428415, 428429, 428447, B05D 1710, B05D 2504

Patent

active

039595331

ABSTRACT:
The adhesion of rubbery copolymers such as styrene-butadiene and styrene-isoprene rubbers to glass is vastly improved by first applying to the glass surface a combination of two primers within specified ratios and separately applying the copolymer thereover. In addition, the alkali resistance of the resulting bond is excellent when exposed to the normal washing cycle for glassware so coated. The method comprises first applying a combination of from 90 to 95% by weight of a first primer consisting of a 50% by weight latex containing 55 mol percent styrene and 45 mol percent butadiene plus 2% by weight of N-aminoethyl-gamma-aminopropyltrimethoxysilane and from 10 to 5% by weight of a second primer consisting of 8.4 parts by weight of an epichlorohydrin-bisphenol A resin, 1.6 parts by weight of N-Aminoethyl-gamma-aminopropyltrimethoxysilane and 45 parts by weight each of ethyleneglycolmonomethylether and ethyleneglycolmonoethyl ether acetate.

REFERENCES:
patent: 3525703 (1970-08-01), Iwami
patent: 3650997 (1972-03-01), Weisfeld et al.
patent: 3658571 (1972-04-01), Marzocchi
patent: 3682687 (1972-08-01), Obuchi et al.
patent: 3765927 (1973-10-01), Marzocchi
patent: 3813351 (1974-05-01), Thomson

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