Powder paint with epoxy and hydroxy copolymer and mixture of dic

Details Powder paint with epoxy and hydroxy copolymer and mixture of dic Powder paint with epoxy and hydroxy copolymer and mixture of dic

1975-02-24

1976-01-13

Kight, III, John

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4228, 260 8075, 260 8081, 260830R, 260836, 427 27, 427386, C08G 5942, C08G 8102, C08F22032

Patent

active

039323676

ABSTRACT:
Improved powder paint compositions are disclosed which comprise a particulate mixture of (1) a qualitatively difunctional copolymer of about 5 to about 20 weight percent of a glycidyl ester of a monoethylenically unsaturated acid, about 2 to about 10 weight percent of C.sub.5 - C.sub.7 hydroxyalkyl acrylates and/or C.sub.5 - C.sub.7 hydroxyalkyl methacrylates, and about 70 to about 93 weight percent monoethylenically unsaturated monomers consisting essentially of monofunctional monomers selected from the group consisting of esters of a C.sub.1 - C.sub.8 monohydric alcohol and acrylic acid, esters of a C.sub.1 - C.sub.8 monohydric alcohol and methacrylic acid and C.sub.8 - C.sub.12 monovinyl hydrocarbons, (2) a C.sub.4 - C.sub.20 saturated, straight chain, aliphatic dicarboxylic acid which is present in an amount that provides about 0.1 to about 0.6 carboxyl group per functional group on said copolymer, and (3) a polyanhydride, i.e., a homopolymer of a monomeric anhydride of a dicarboxylic acid, having molecular weight in the range of about 1000 to about 5000 which is present in an amount that provides about 0.2 to about 1.1 anhydride groups per epoxy group on said copolymer.

REFERENCES:
patent: 3752870 (1973-08-01), Labana
patent: 3770848 (1973-11-01), Labana et al.
patent: 3781379 (1973-12-01), Theodore et al.
patent: 3876587 (1975-04-01), Matsui et al.

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