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US 5,965,670 AGranted
Curable-film forming compositions having improved mar and acid etch resistance
AssigneePPG Industries Ohio, Inc.
InventorsGeorge W. Mauer, William E. Michael, John W. Burgman, Leigh-Ann Humbert
Life of this patent
Estimating the term…
Abstract
Curable film-forming compositions comprising acrylic polyols, aminoplast and carbamoyl triazines are disclosed. The compositions are useful as clear coats in composite color-plus-clear coatings.
Claims25
A curable film-forming composition comprising:
- (a) an acrylic polyol polymer;
- (b) about 20 to about 35 percent by weight, based on total weight of resin solids, of an aminoplast;
- and
- (c) about 1 to 20 percent by weight, based on total weight of resin solids, of a triazine compound of the formula:
- C.sub.3 N.sub.3 (NHCOXR).sub.3, wherein X is nitrogen, oxygen, sulfur, phosphorus, or carbon, and R is a lower alkyl group having one to twelve carbon atoms, or mixtures of lower alkyl groups;
- wherein the total of components (b) and (c) is greater than 25 and less than 45 percent by weight, based on the total weight of resin solids.
3 more elements
A multi-component composite coating composition comprising a base coat deposited from a pigmented film-forming composition and a transparent top coat applied over the base coat in which the transparent top coat is deposited from a clear film-forming composition comprising:
- (a) an acrylic polyol polymer;
- (b) about 20 to about 35 percent by weight, based on the total weight of resin solids, of an aminoplast;
- and
- (c) about 1 to 20 percent by weight, based on the total weight of resin solids, of a triazine compound of the formula:
- C.sub.3 N.sub.3 (NHCOXR).sub.3, wherein X is nitrogen, oxygen, sulfur, phosphorus, or carbon, and R is a lower alkyl group having one to twelve carbon atoms, or mixtures of lower alkyl groups;
- wherein the total of components (b) and (c) is greater than 25 and less than 45 percent by weight, based on the total weight of resin solids.
3 more elements
Dependencies are inferred from the claim text.