公开(公告)号：JPH11189731A

公开(公告)日：1999-07-13

申请号：JP29530798

申请日：1998-10-16

Applicant: BASF AG

Inventor： SCHUETZE DR ANDREA BIRGIT ,  SCHERHAG DR FRANK ,  BOETTCHER PETER

IPC: C09B67/12 ,  C09B67/16 ,  C09B67/20 ,  C09B67/22

Abstract: PROBLEM TO BE SOLVED: To convert a crude pigment to the subject form of pigment suitable to use having good fluidity and bright and clear deep color by treating the crude pigment with an acidic aromatic organic medium in the presence of a copper phthalocyanine derivative and water. SOLUTION: A crude pigment is converted to the form of pigment suitable to use by the following procedure: A halogenated copper phthalocyanine crude pigment containing 4-50.3 wt.% chlorine is treated with a liquid acidic aromatic organic medium preferably a compound of formula II (X is hydroxy or carboxy; benzene ring D may contain nitro, a 1-4C alkyl or the like) (e.g. 2-nitrophenol, 1-naphthol) preferably in the presence of a copper phthalocyanine derivative of formula I [A and B are each a group of the formula; SO3 M, CO2 M (M is H or an alkali metal) or the like; (m) is 0-4.0; (n) is 0-4.0] such as a copper phthalocyanine-sulfonic acid, a copper phthalocyanine-carboxylic acid or an alkali metal salt thereof, if necessary, in the presence of water and at increased temperature.

公开(公告)号：DE59801211D1

公开(公告)日：2001-09-20

申请号：DE59801211

申请日：1998-10-06

Applicant: BASF AG

Inventor： SCHUETZE DR ANDREA BIRGIT ,  SCHERHAG DR FRANK ,  BOETTCHER DR PETER

IPC: C09B67/12 ,  C09B67/16 ,  C09B67/20 ,  C09B67/22

Abstract: Conversion of halogenated copper phthalocyanine (CuPc) crude pigments containing 4 - 50.3 wt.% chlorine to a more suitable pigment is achieved by heating with a liquid acidic aromatic organic medium in the presence of a CuPc derivative and, optionally, water.