| 摘要 |
<p>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.</p> |
