Abstract: The present invention provides waterborne curable film-forming compositions comprising: a) an aqueous dispersion of polymeric acrylic particles, wherein the particles have a Z average particle size less than 80 nm and have reactive functional groups; wherein the particles are prepared from a monomer mixture comprising ethylenically unsaturated monomers that are polymerized in the presence of a branched polymer having an acid value of 40-200, wherein the branched polymer is prepared from ethylenically unsaturated monomers; b) a crosslinking agent having functional groups reactive with functional groups on the polymeric acrylic particles; and c) an aqueous dispersion of at least one additional polymer having hydroxyl and/or acid functional groups and having a Z average particle size greater than 100 nm. Further provided are multilayer coated substrates comprising the curable film-forming compositions and methods for forming a composite coating on a substrate using the curable film-forming compositions.

Abstract: The present invention provides waterborne curable film-forming compositions comprising: a) an aqueous dispersion of polymeric acrylic particles, wherein the particles have a Z average particle size less than 80 nm and have reactive functional groups; wherein the particles are prepared from a monomer mixture comprising ethylenically unsaturated monomers that are polymerized in the presence of a branched polymer having an acid value of 40-200, wherein the branched polymer is prepared from ethylenically unsaturated monomers; b) a crosslinking agent having functional groups reactive with functional groups on the polymeric acrylic particles; and c) an aqueous dispersion of at least one additional polymer having hydroxyl and/or acid functional groups and having a Z average particle size greater than 100 nm. Further provided are multilayer coated substrates comprising the curable film-forming compositions and methods for forming a composite coating on a substrate using the curable film-forming compositions.

Abstract: The present invention is directed to a polymer comprising the reaction product of (i) a monomer comprising at least two ethylenically unsaturated double bonds; (ii) a monomer comprising a carbon atom that is connected to four moieties wherein one of said moieties comprises a hydrogen atom and the remainder of said moieties comprises an alkyl group, wherein one of the alkyl group containing moieties comprises an ethylenically unsaturated double bond, and wherein none of the alkyl group containing moieties form a cycloaliphatic ring; (iii) at least one monomer that is reactive with (i) and/or (ii); wherein the reaction product is not further reacted with any other monomer comprising an ethylenically unsaturated double bond; and wherein said reaction product comprises a reactive functional group.