Glycidyl-hydroxy-acrylic high solids coating compositions

Details Glycidyl-hydroxy-acrylic high solids coating compositions Glycidyl-hydroxy-acrylic high solids coating compositions

C - Chemistry, Metallurgy

09

D

400/5454, 400/54

C09D 3/58 (1985.01)

Patent

CA 1236238

ABSTRACT OF THE DISCLOSURE A thermosetting coating composition with excellent weatherability adapted for use as an automotive topcoat which upon curing forms a hard, glossy, durable coating. The coating composition, which reacts in situ during curing, characterized in that the composition comprises a mixture of: (A) acrylic copolymer bearing pendant epoxide functionality and hydroxyl functionality and having a number average molecular weight (?n) of between about 1000 and about 5000; (B) dicarboxylic acid anhydride comprising at least about 50 weight percent of alkyl hexahydrophthalic anhydride; (C) amine-aldehyde crosslinking agent; and (D) solvent.

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