发明名称 |
Pigments, the process of their manufacture and their use |
摘要 |
<p>A diketopyrrolo[3,4-c]pyrrole alkali salt suspension is mixed with crude pigment containing acidic hydrogens like -NH, -OH or -CONH- groups in the presence of excess base. Then the salts are precipitated. The diketopyrrolo[3,4-c]pyrrole pigment (I) is obtained. A diketopyrrolo[3,4-c]pyrrole alkali salt suspension is mixed with crude pigment containing acidic hydrogens like -NH, -OH or -CONH- groups in the presence of excess base. Then the salts are precipitated. The diketopyrrolo[3,4-c]pyrrole pigment of formula (I) is obtained. [Image] A and B : group (IA); and R1 and R2hydrogen, halogen, 1-5C alkyl, nitrile or phenyl.</p> |
申请公布号 |
EP1046680(A2) |
申请公布日期 |
2000.10.25 |
申请号 |
EP20000810302 |
申请日期 |
2000.04.06 |
申请人 |
CLARIANT FINANCE (BVI) LIMITED |
发明人 |
KAUL, BANSI LAL;PIASTRA, BRUNO;WOLF, VALERIE |
分类号 |
G03G9/09;A61K8/30;A61K8/49;A61Q1/02;C08K5/00;C08L101/00;C09B5/48;C09B19/02;C09B29/20;C09B29/33;C09B55/00;C09B57/00;C09B67/22;C09D5/03;C09D7/12;C09D11/00;C09D201/00;D06P1/44;(IPC1-7):C09B67/22 |
主分类号 |
G03G9/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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