An acrylic composition includes the reaction product of an acrylic
polymer, a carboxylic acid compound, and an alkyl carbamate. The acrylic
polymer includes the reaction product of a functionalized monomer, a
first compound reactive with the functionalized monomer to form a
functionalized intermediate, and a highly branched, polyfunctional core
molecule reactive with the functionalized intermediate. The first
compound includes vinyl functionality reactive with the functionalized
monomer and epoxy functionality. The carboxylic acid compound has
carboxylic acid functionality that is reactive with the acrylic polymer.
The alkyl carbamate is reactive with the hydroxyl-functional acrylic
polymer to form the acrylic composition. The acrylic composition is
highly-branched and, when used in coating compositions in combination
with a suitable cross-linking agent, enhances recoat adhesion and
produces cured films that have optimum scratch, mar, and chip
performance, and acid etch resistance.