申请人:KANSAI PAINT CO., LTD.
公开号:EP1247821A2
公开(公告)日:2002-10-09
This invention provides both a pigment dispersing resin which is a copolymer of:
(A) polymerizable unsaturated monomer containing at least one kind of ionic functional group selected from the group consisting of tertiary amino group, quaternary ammonium salt and sulfonic acid group;
(B) nonionic polymerizable unsaturated monomer having polyoxyalkylene chain;
(C) ultraviolet-absorbing polymerizable unsaturated monomer and/or an ultraviolet-stabilizing polymerizable unsaturated monomer; and
(D) other ethylenically unsaturated monomer,
and water-based pigment dispersion which comprises said pigment dispersing resin, pigment, aqueous medium and, as circumstances may demand, dispersing agent as well.
本发明提供了一种颜料分散树脂,该树脂是以下物质的共聚物:
(A) 含有至少一种离子官能团的可聚合不饱和单体,该离子官能团选自由叔氨基、季铵盐和磺酸基组成的组;
(B) 具有聚氧亚烷基链的非离子可聚合不饱和单体;
(C) 紫外线吸收可聚合不饱和单体和/或紫外线稳定可聚合不饱和单体;以及
(D) 其他乙烯基不饱和单体、
和水性颜料分散体,其中包括上述颜料分散树脂、颜料、水性介质以及根据情况需要加入的分散剂。