High solids coating compositions

Details High solids coating compositions High solids coating compositions

C - Chemistry, Metallurgy

08

K

400/4211, 400/54

C08K 5/04 (2006.01) C08G 59/42 (2006.01) C08G 59/62 (2006.01) C09D 163/00 (2006.01)

Patent

CA 1235247

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 is characterized by comprising a mixture of: (A) polyol having a number average molecular weight (?n) of between about 130-5000; (B) dicarboxylic acid anhydride comprising at least about 50 weight percent of alkyl hexahydrophthalic anhydride; (C) epoxy having one or more epoxide groups per molecule and a number average molecular weight (?n) of between about 130-1500; and (D) an amine-aldehyde crosslinking agent.

432979

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