Patent ID: 9018311
Filing Date: 2015-04-28
Classification: C08F,C09D

Abstract:
1. A copolymer consisting of: a block chain (A) consisting of at least one repeating unit selected from the group consisting of a repeating unit having a tertiary amino group and a repeating unit having a quaternary ammonium base; and a block chain (R) consisting of a random copolymer comprising a repeating unit represented by formula (I): wherein; R R Q represents: the oxygen-containing saturated heterocyclic optionally having an alkyl group as a substituent, and n represents an integer of 0 to 6; and a repeating unit represented by formula (II): wherein R 4 represents a hydrogen atom or a C1-C3alkyl group and R 5 represents a saturated aliphatic hydrocarbon group or a saturated alicyclic hydrocarbon group, wherein a copolymerization ratio of the repeating unit represented by formula (II) is 90 wt % or more in the block chain (B) excluding the repeating unit represented by formula (I).