Patent ID: 9217052
Filing Date: 2015-12-22
Classification: C08F,C09D

Abstract:
1. A copolymer, consisting essentially of: a block chain (A) consisting essentially of at least one repeating unit selected from the group consisting of a repeating unit having a tertiary amino group represented by formula (II): wherein: R R X represents a C1-C10 alkylene group or a C1-C10 alkylene-O—C1-C10 alkylene group; and a repeating unit having a quaternary ammonium salt group represented by formula (VII): wherein: R X R Z a block chain (B) comprising: wherein R 9 represents a hydrogen atom or a C1-C3 alkyl group, or a repeating unit represented by formula (IV): wherein: R Y represents a C1-C10 alkylene group or a C1-C10 alkylene-O—C1-C10 alkylene group; and a repeating unit represented by the following formula (I): wherein: R R wherein: the repeating unit represented by formula (I) has a copolymerization ratio of 90 wt % or more in the block chain (B); and a ratio between the block chain (A) and the block chain (B) in the copolymer is 15 to 35:85 to 65 in a wt % ratio.