Electrodepositable coating compositions
AssigneePPG Industries Ohio, Inc.
InventorsDavid A. Stone, Egle Puodziukynaite, James C. Serene, Craig A. Wilson, Yves Le Disert, Marissa E. Mcgovern
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Abstract
The present invention is directed to an electrodepositable coating composition comprising an acrylic polymer comprising greater than 60% by weight of constitutional units comprising the residue of a hydroxyl-functional (meth)acrylate monomer and/or a hydroxyl-functional (meth)acrylamide monomer, based on the total weight of the acrylic polymer; and an ionic salt group-containing film-forming polymer different from the acrylic polymer. Also disclosed are coatings, coated substrates, and methods of coating a substrate.
Claims24
An electrodepositable coating composition comprising:
- (a) a single-stage acrylic polymer comprising 70% to 100% by weight of constitutional units comprising the residue of a hydroxyl-functional (meth) acrylate monomer and/or a hydroxyl-functional (meth) acrylamide monomer, based on the total weight of the acrylic polymer;
- and
- (b) an ionic salt group-containing film-forming polymer different from the acrylic polymer;
- wherein the acrylic polymer is substantially free of constitutional units comprising the residue of a polymeric dispersant.
Dependencies are inferred from the claim text.