Patent ID: 8865840
Filing Date: 2014-10-21
Classification: C08F

Abstract:
1. A process, comprising: a) reacting first-block monomers consisting of an acrylic monomer and one or more monomers in the presence of a free radical initiator and a stable free radical in a first step to form a reaction product, wherein the reaction product includes a first block and residual unreacted acrylic monomer; and b) reacting in a second step one or more vinyl monomers with the reaction product from the first step to form a second block bonded to the first block, thereby making a block copolymer, wherein the second block incorporates the residual unreacted acrylic monomer, wherein the acrylic monomer is selected from the group consisting of glycidyl methacrylate, acrylic acid, methacrylic acid, 2-hydroxyethyl methacrylate, 2-dimethylaminoethyl methacrylate and 2-diethylaminoethyl methacrylate, and wherein the one or more monomers in step (a) and the one or more vinyl monomers in step (b) are each selected from the group consisting of styrene, substituted styrenes, ethylene, isoprene, isobutylene, butadiene, acrylates, butyl acrylate, methyl methacrylate, methacrylates, alkyl substituted acrylates, aryl substituted acrylates, alkyl substituted methacrylates, aryl substituted methacrylates, 2-hydroxyethyl methacrylate, acrylonitrile, acrylic acid and methacrylic acid.