Liquid coating composition having a reactive catalyst
AssigneeE. I. Du Pont de Nemours and Company
InventorsJoseph E. McLaughlin, George A. Strickland
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Abstract
A thermosetting coating composition having a binder of a film forming polymer having reactive hydroxyl groups, epoxy groups or methylol groups and a melamine, benzoguanamine or urea crosslinking agent and about 0.1-10% by weight of reactive catalyst which is a solid at 30.degree. C. in which the catalyst has one of the following structures: ##STR1## or mixtures of the above; where R is an alkyl group or a hydroxy alkyl group having 1-18 carbon atoms; the catalyst is prepared by reacting in a 1:1 molar ratio trimellitic anhydride and an aliphatic monohydric alcohol or an aliphatic diol.
Claims5
A thermosetting coating composition comprising a binder of a film forming acrylic polymer or polyester polymer having reactive hydroxyl groups, carboxyl groups or methylol groups and a crosslinking agent selected from the group consisting of melamine formaldehyde resin, alkylated melamine formaldehyde resin, urea formaldehyde resin or benzoguanamine formaldehyde resin and about 0.1-10% by weight, based on the weight of the coating composition, of reactive catalyst which is a solid at 30.degree. C. and comprises a structure selected from the group of ##STR3## and mixtures thereof;
- wherein R is the residue of neodecanol or 2-ethyl 1,3-hexanediol.
Dependencies are inferred from the claim text.