申请人:Dainichiseika Color & Chemicals Mfg. Co., Ltd.
公开号:EP2311920A1
公开(公告)日:2011-04-20
Disclosed is a pigment dispersion containing at least a pigment, a liquid medium and a high-molecular dispersant. The high-molecular dispersant is a block polymer represented by A-B or A-B-C, in which A, B and C each represent a polymer block and the A and C blocks may be the same or different. The block polymer and its production process are also disclosed. The high-molecular dispersant is free of problems of a smell, coloration, a heavy metal and cost, and its use can provide a pigment dispersion excellent in the dispersion stability of a pigment.
本发明公开了一种颜料分散体,至少含有一种颜料、一种液体介质和一种高分子分散剂。高分子分散剂是以 A-B 或 A-B-C 表示的嵌段聚合物,其中 A、B 和 C 各代表一个聚合物嵌段,A 和 C 嵌段可以相同或不同。还公开了嵌段聚合物及其生产工艺。该高分子分散剂不存在气味、着色、重金属和成本等问题,使用该分散剂可提供颜料分散稳定性极佳的颜料分散体。