公开(公告)号：EP3272776A4

公开(公告)日：2018-01-31

申请号：EP16764899

申请日：2016-03-11

申请人： RICOH CO LTD

发明人： HARADA SHIGEYUKI ,  MATSUYAMA AKIHIKO ,  YANAGAWA YOSHIKI ,  FUKUOKA MASAYUKI ,  YAMAZAKI TAKUYA ,  NAGAI KAZUKIYO ,  KOIZUKA YUUSUKE ,  SHIMADA TOMOYUKI ,  SABU AKIYOSHI

IPC分类号： C08F220/58 ,  B41J2/01 ,  B41M5/00 ,  C08F220/36 ,  C09B67/20 ,  C09D11/326

CPC分类号： C09D11/107 ,  B41J2/17503 ,  B41M5/00 ,  C08F220/36 ,  C08F220/58 ,  C08F2220/346 ,  C08F2220/365 ,  C09D11/033 ,  C09D11/322 ,  C09D11/326

摘要： A copolymer including a structural unit represented by General Formula (1) below, and a structural unit represented by General Formula (2) below, where, in General Formula (1), R 1 is a hydrogen atom or a methyl group, L 1 is an alkylene group having 2 or greater carbon atoms but 5 or less carbon atoms, and X is a hydrogen atom or a cation, where, in General Formula (2), R 2 is a hydrogen atom or a methyl group and L 2 is an alkylene group having 2 or greater carbon atoms but 18 or less carbon atoms.