Patent ID: 8846821
Filing Date: 2014-09-30
Classification: C08F,C08G,C08K,C08L,C09D,Y10T

Abstract:
1. A metal-crosslinked organopolysiloxane-thio block vinyl copolymer [D], comprising an organopolysiloxane-thio block vinyl copolymer [C] crosslinked with a divalent metal [M], said copolymer [C] comprising a carboxylic acid-containing vinyl copolymer block [A], formed from at least one constitutional unit derived from a polymerizable unsaturated carboxylic acid (a1) and at least one constitutional unit derived from at least one other polymerizable unsaturated monomer (a2) copolymerizable with the polymerizable unsaturated carboxylic acid (a1), and an organopolysiloxane-thio block [B] represented by the following formula [I]: wherein: each R R t is an integer of not less than 0; and u is an integer of not less than 1.