Pigment dispersant, method of making coating compositions, and coating compositions

Abstract

A coating composition comprises at least one pigment dispersed in an acrylic polymer, wherein the acrylic polymer is polymerized from a mixture of ethylenically unsaturated monomers comprising: (a) one or more monomers having active hydrogen functionality; (b) at least about 5% by weight of one or more monomers selected from the group consisting of monomers having a carboxylic acid group in which the carbonyl carbon is separated from the closest ethylenically unsaturated carbon by at least four atoms, ω-methyloxy-polyoxyethylene(meth)acrylates, ω-methyloxy-poly(oxyethylene-co-oxypropylene)(meth)acrylates, and combinations thereof; (c) optionally hydroxyethylene ethyl urea (meth)acrylate; and (d) up to about 50 percent by weight of one or more monomers selected from the group consisting of aromatic polymerizable monomers, wherein the monomers (b) and (c) combined are from about 5 to about 45 percent by weight of the mixture of ethylenically unsaturated monomers.

Dependencies are inferred from the claim text.