Patent ID: 7034085
Filing Date: 2006-04-25
Classification: C08F,C08L,C09D

Abstract:
1. A method for making a block or gradient final (co)polymer comprising a first step of radically polymerizing a mixture of ethylenically unsaturated monomers in the presence of a radical precursor and I 2 or a iodine chain transfer agent to obtain an iodine atom-containing intermediate polymer, wherein the iodine atom-containing intermediate polymer comprises at least 50 mole % of methacrylate monomers, followed by a second step of radically polymerizing a mixture of ethylenically unsaturated monomers in the presence of a radical precursor and the iodine atom-containing intermediate polymer wherein the intermediate polymer has end groups predominantly of the iodine-containing methacrylate type.