Powder paint with epoxy and amide copolymer and anhydride

Details Powder paint with epoxy and amide copolymer and anhydride Powder paint with epoxy and amide copolymer and anhydride

1975-02-24

1976-08-17

Tillman, Murray

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260830R, 260830TW, 427 27, 427386, 526 1, 526 89, 526271, 526320, 526328, 260 4228, 260 7841, C08L 6310, C08F 1814

Patent

active

039754561

ABSTRACT:
Improved powder coating 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 an alpha-beta olefinically unsaturated amide and about 70 to about 93 weight percent monoethylenically unsaturated monomers consisting essentially of monofunctional monomers selected from the group consisting of esters of C.sub.1 -C.sub.8 monohydric alcohol and methacrylic acid and C.sub.8 -C.sub.12 monovinyl hydrocarbons, and (2) an anhydride crosslinking agent selected from the group consisting of monomeric anhydrides of dicarboxylic acids and homopolymers of monomeric anhydrides of dicarboxylic acids, the same being present in an amount such as to provide about 0.3 to about 1.2 anhydride groups for each functional group on the copolymer.

REFERENCES:
patent: 3781379 (1973-12-01), Theodore et al.
patent: 3839249 (1974-10-01), Wollner et al.
patent: 3845016 (1974-10-01), Labana et al.
patent: 3847863 (1974-11-01), Labana et al.
patent: 3876587 (1975-04-01), Matsui et al.
patent: 3939127 (1976-02-01), Labana et al.

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