公开(公告)号：US20020049309A1

公开(公告)日：2002-04-25

申请号：US09883904

申请日：2001-06-18

发明人： Bradley Leonard Beach ,  Ann P. Holloway ,  James F. Feeman

IPC分类号： C09B033/02 ,  C09B033/18

CPC分类号： C09D11/328 ,  C09B31/08

摘要： Provided are novel black azo dyes which are useful in ink compositions, especially ink jet ink compositions. The dyes and ink compositions of the present invention exhibit a good balance of optical density, print reliability, water fastness and light fastness.

公开(公告)号：US20020058794A1

公开(公告)日：2002-05-16

申请号：US09894342

申请日：2001-06-28

申请人： Clariant International Ltd.

发明人： Uwe Nickel ,  Klaus Kund ,  Frank Alfter

IPC分类号： C07C245/08 ,  C07C245/04 ,  C09B033/02

CPC分类号： C09B43/38 ,  B01J19/0093 ,  B01J2219/00783 ,  B01J2219/0086 ,  B01J2219/00873 ,  B01J2219/00889 ,  B01J2219/00984 ,  C09B43/32

摘要： A process for preparing disazo condensation pigments by diazotization of an aromatic amine, azo coupling with a coupling component to form an azocarboxylic acid or azodicarboxylic acid, formation of an azocarbonyl chloride or azodicarbonyl dichloride and condensation of the azocarbonyl chloride with an aromatic diamine or of the azodicarbonyl dichloride with an aromatic amine comprises effecting the acyl chloride formation and/or the condensation and optionally the diazotization and optionally the azo coupling in a microreactor.