High solids coating composition
AssigneeSun Chemical Corporation
InventorsSelcuk Avci, Narendra M. Patel, Leonard Di Leo, Ralph H. Reiter
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Abstract
A coating composition having a total solids content of at least about 85 wt. %, based on the weight of the composition, a volatile organic chemical content of less than about 15 wt. %, based on the weight of the composition and a Brookfield viscosity of about 500-2,000 centipoises at 25.degree. C. The composition contains a polyester polyol having a weight average molecular weight of about 300-900 and a hydroxy number of about 150-400; at least one thermosettable polyester; an alkoxy aminoplast resin; a reactive diluent present in an amount of 0-30 wt. %, based on the weight of the composition; and an acid catalyst curing agent.
Claims14
A coating composition having a total solids content of 85 to 95 wt. %, based on the weight of the composition, a volatile organic chemical content of less than 10 wt. %, based on the weight of the composition, and a Brookfield viscosity of about 800 to 1,400 cps at 25.degree. C., consisting essentially of:
- (a) a polyester polyol having a weight average molecular weight of about 300-900 and a hydroxy number of about 150-400;
- (b) at least one thermosettable polyester having a hydroxy value of about 40-250 and an acid value of about 30-60;
- (c) an alkoxy aminoplast resin;
- (d) 0-30 wt. %, based on the weight of the composition, of a reactive diluent;
- and
- (e) an acid catalyst curing agent.
Dependencies are inferred from the claim text.