Patent ID: 6762263
Filing Date: 2004-07-13
Classification: C08F

Abstract:
A process for the controlled free radical solution polymerization to a level of solids suitable for use as low volatile organic solvent coating compositions while maintaining viscosity suitable for such coatings of monomers comprising substituted or unsubstituted acrylic acid, or esters thereof in a solvent suitable for high solids coating application at a monomer concentration sufficient to give the desired polymer concentration which comprises treating said monomers in said solvent with a controlled free radical initiator selected from the group N,N-dialkyl-alkoxyamines having one hydrogen atom on one carbon atom in the &agr; position of one alkyl group attached to the amino nitrogen, nitroxyl radicals having one hydrogen atom on one carbon atom in the &agr; position of one alkyl group attached to the nitroxyl nitrogen and mixtures thereof.