Patent ID: 6953822
Filing Date: 2005-10-11
Classification: C08F,C09D,C09J

Abstract:
1. Aqueous (meth)acrylate copolymer dispersions preparable by (I) subjecting at least one monomer (a) containing at least one hydrophilic functional group which brings about the water-solubility or water-dispersibility of the (meth)acrylate copolymer to (co)polymerization in aqueous/organic solution using at least one oil-soluble free-radical initiator, (II) where appropriate, at least partly neutralizing the resulting (co)polymer of step I, (III) dispersing the resultant solution of the (co)polymer of step I, at least partly neutralized where appropriate, in water, and (IV) graft copolymerizing or both copolymerizing and graft-copolymerizing at least one monomer (b) in the presence of the resultant dispersion of step III or aqueous solution of step I using at least one oil-soluble, free radical initiator, wherein the monomer or monomers (b) wherein the (meth)acrylate copolymer has a number average molecular weight from 1,500 to 15,000 daltons.