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US 4,927,868 AGranted
High solids coating compositions containing a polyepoxide and a copolymer of an alpha-olefin and an olefinically unsaturated monoanhydride
AssigneePPG Industries, Inc.
InventorsKarl F. Schimmel, William P. Blackburn
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Abstract
Curable, high solids, liquid coating compositions are disclosed. The resinous binder comprises a copolymer of an alpha-olefin or cycloolefin and an olefinically unsaturated monoanhydride which may include a half-ester thereof. The coating compositions are useful as clear coats in color-plus-clear automotive coatings and have good humidity resistance and mar resistance.
Claims13
A curable, liquid coating composition containing organic solvent and a resinous binder, said resinous binder comprising:
- (a) a polyepoxide,
- (b) a copolymer of an alpha-olefin or a cycloolefin and an olefinically unsaturated monoanhydride including a partial ester thereof;
- and
- (c) a carboxy-terminated polyester polyacid curing agent containing at least two carboxyl groups per molecule;
- said coating composition having a resin solids content of at least 40 percent by weight.
2 more elements
Dependencies are inferred from the claim text.