Patent ID: 7994250
Filing Date: 2011-08-09
Classification: C08F,C08G,C08L

Abstract:
1. An aqueous dispersion of a vinyl-urethane copolymer, said vinyl-urethane copolymer comprising: at least one vinyl polymer chain and at least one urethane polymer chain, the vinyl polymer chain being combined with the urethane polymer chain through the intermediary of a linkage segment having a silicon-oxygen bond, wherein the linkage segment having a silicon-oxygen bond is bonded to the urethane polymer chain and the vinyl polymer chain, wherein the urethane polymer chain is a residue of a urethane polymer (A) having at least one silicon-containing hydrolyzable group, and the vinyl polymer chain is a residue of a polymer derived from an ethylenically unsaturated monomer (B) and a compound (C) as monomer components, wherein the compound (C) comprises at least one functional group reactive with a silicon-containing hydrolyzable group and at least one functional group reactive with an ethylenically unsaturated bond-containing group, wherein the bonding between the urethane polymer chain and the linkage segment is at the terminal of the urethane polymer chain, and wherein the urethane polymer (A) having at least one silicon-containing hydrolyzable group is an alkoxysilylated urethane polymer (A1) containing at least one hydrophilic group.