Thermosettable acrylic resin composition for powder coating

Details Thermosettable acrylic resin composition for powder coating Thermosettable acrylic resin composition for powder coating

1974-07-23

1977-09-06

Lieberman, Allan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 306R, 260 312R, 260 316, 260 318E, 260 326R, 526 16, 526 51, 526 56, C08L 3302, C08L 3314, C08L 6308, C08L 6310

Patent

active

040467279

ABSTRACT:
A thermosettable acrylic resin composition for powder coating comprising a mixture consisting essentially of (A) 100 parts by weight of an acrylic resin having a glass transition temperature of 10.degree. to 75.degree. C. and containing (a) 2 to 28 % by weight of a monomeric component containing epoxy group and (b) 0.1 to 8 % by weight of a monomeric component containing carboxyl or acid anhydride group, the gram equivalent ratio of said carboxyl groups to said epoxy groups contained in said acrylic resin being in the range from 1/2 to 1/20 (provided that the gram equivalent of an acid anhydride group is assumed to be equivalent to 2 gram equivalents of the carboxyl group) and (B) 0.5 to 25 parts by weight of a curing agent capable of crosslinking said acrylic resin (A). On being baked at 150.degree. to 220.degree. C. for 10 to 50 minutes, this composition gives a coating film excellent in strength, adherence, and surface leveling.

REFERENCES:
patent: 3242123 (1966-03-01), Mayfield et al.
patent: 3563953 (1971-02-01), Lehmann et al.
patent: 3784501 (1974-01-01), Pettit
patent: 3803111 (1974-04-01), Munro et al.
patent: 3843612 (1974-10-01), Vogel et al.
patent: 3845010 (1974-10-01), Labana et al.
patent: 3847863 (1974-11-01), Labana et al.
patent: 3857905 (1974-12-01), Blackley et al.

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