Patent ID: 6710127
Filing Date: 2004-03-23
Classification: C08F,C09D

Abstract:
A coating formulation comprising, at least one polymer resin and a leveling agent comprising a base molecule having attached macromonomeric units;wherein the base molecule comprises monomeric units selected from the group consisting of: alkenes and arylalkenes having from 2 to 30 carbon atoms; acrylic acid, or methacrylic acid; alkyl acrylates and alkyl methacrylates of straight-chain, branched or cycloaliphatic alcohols having from 1 to 22 carbon atoms; aralkyl acrylates and aralkyl methacrylates of aralkyl alcohols having from 8 to 18 carbon atoms; polyethylene glycol monoacrylates or polyethylene glycol methacrylates having from 5 to 80 carbon atoms; hydroxyalkyl acrylates and hydroxyalkyl methacrylates of straight-chain, branched or cycloaliphatic diols having from 2 to 36 carbon atoms; acrylamides and methacrylamides of straight-chain, branched or cycloaliphatic amines having from 1 to 22 carbon atoms; maleates, itaconates and fumarates of straight-chain, branched or cycloaliphatic alcohols having from 1 to 22 carbon atoms; perfluoroalkyl acrylates and perfluoroalkyl methacrylates having from 6 to 20 carbon atoms; vinyl esters, vinyl ethers and vinyl ketones having from 3 to 20 carbon atoms; caprolactone- or valerolactone-modified hydroxyalkyl acrylates, having an average molecular weight of from 220 to 1200; and caprolactone- or valerolactone-modified hydroxyalkyl methacrylates having an average molecular weight of from 220 to 1200; and the macromonomeric units have one ethylenically unsaturated bond; and consist of polydimethylsiloxanes, or have the structure â€ƒat a terminal end: wherein R is hydrogen or a methyl group; or monomeric units selected from the group consisting of alkenes or arylalkenes having from 2 to 30 carbon atoms; alkyl acrylates or alkyl methacrylates of straight-chain, branched or cycloaliphatic alcohols having from 1 to 22 carbon atoms; aralkyl acrylates or aralkyl methacrylates of aralkyl alcohols having from 8 to 18 carbon atoms; perfluoroalkyl acrylates or perfluoroalkyl methacrylates having from 6 to 20 carbon atoms; vinyl esters, vinyl ethers or vinyl ketones having from 3 to 20 carbon atoms; wherein the macromonomeric units have a weight-average molecular weight from 1000 to 30,000; and wherein the macromonomeric units comprise from 1 to about 60% by weight, based on the total weight of the branched polymer, which has a weight-average molecular weight of from 5000 to 100,000; and wherein the leveling agent concentration is from 0.01 to 5% by weight based on the total weight of the formulation.