Patent ID: 7001952
Filing Date: 2006-02-21
Classification: C08G,C09D,Y10T

Abstract:
1. A thermosetting composition comprising: (I) a first reactant comprising reactive functional groups; (II) a curing agent having functional groups reactive with the functional groups of the first reactant in (I); (III) a latex emulsion comprising crosslinked polymeric microparticles dispersed in an aqueous continuous phase, the polymeric microparticles prepared from a monomer mix comprised of: (IV) an aqueous polyurethane dispersion, comprising polyurethane-acrylate particles dispersed in an aqueous medium, said particles comprising the reaction product obtained by polymerizing the components of a pre-emulsion formed from: (A) an active hydrogen-containing polyurethane acrylate prepolymer, comprising a reaction product obtained by reacting: (B) one or more hydrophobic polymerizable ethylenically unsaturated monomers; and (C) a crosslinking monomer; wherein the active hydrogen functional polyurethane acrylate prepolymer of (A) includes at least 30 percent by weight of polyurethane acrylate prepolymer comprising one or more prepolymers having at least one terminal polymerizable site of ethylenic unsaturation, at one end of the molecule and at least one active hydrogen-containing group at the opposite end of the molecule; and at least 10 percent by weight of the polyurethane acrylate prepolymer comprising one or more prepolymers having at least one terminal polymerizable site of ethylenic unsaturation at each end of the molecule.