公开(公告)号：EP0763378A2

公开(公告)日：1997-03-19

申请号：EP96114490.4

申请日：1996-09-10

申请人： TOYO INK MANUFACTURING CO., LTD.

发明人： Takashi, Kamikubo, Toyo Ink Manufacturing Co., Ltd ,  Tadashi, Itabashi, Toyo Ink Manufacturing Co., Ltd ,  Katsuhiko, Sawamura, Toyo Ink Manuf. Co., Ltd.

IPC分类号： B01F17/00 ,  C09B67/00

CPC分类号： C09B67/0085 ,  B01F17/00 ,  C09B67/0033

摘要： The present invention provide a non-aqueous type pigment dispersing agent having at least one portion which has a high affinity with a pigment and which has at least one type selected from the group consisting of an organic dye, anthraquinone and acridone only at a terminal end or at both terminal ends of at least one polymer selected from a linear urethanic polymer and a linear acrylic polymer, a pigment composition using the same and a pigment dispersion. The portion having a high affinity with the pigment can be adsorbed efficiently on the surface of a pigment. At the same time pigment, for example, used for ink or paint can be dispersed stably due to the affinity between the polymer portion and a disperse medium to improve the adaptability in use and the quality of coated products.