US 2003/0149192 A1 · Automotive refinish coatings with low volatile organic content

Abstract

The refinish compositions contain an acetoacetate resin based on a monomeric polyol or a hydroxy-functional oligomer of such a polyol; a blocked polyamine (polyketimine and/or polyaldimine), pigment, and alkyd polymer. The alkyd is not reactive toward the acetoacetate resin or the blocked polyamine. The refinish compositions may be prepared from an intermix system that has a plurality of color bases and an unpigmented component.. Each color base includes the alkyd resin and one or more pigments dispersed with the alkyd resin. The unpigmented component includes at least one of the acetoacetate-functional resin or the blocked polyamine. A drier for the alkyd resin may be included in one of the components or in a separate, additional component.

Claims20

Dependent claims

An ambient-curing coating composition, comprising

an acetoacetate-functional material having at least two acetoacetate groups, wherein said acetoacetate-functional material has a molecular weight of up to about 1000;
a blocked polyamine compound;
a pigment;
and
an alkyd, wherein the alkyd is not reactive toward the acetoacetate-functional material or the blocked polyamine compound.

2 more elements

Dependencies are inferred from the claim text.

Automotive refinish coatings with low volatile organic content

Life of this patent

Automotive refinish coatings with low volatile organic content

Life of this patent

Abstract

Claims20