发明名称 |
Vat dyes |
摘要 |
Vat dyes are obtained by a) halogenation of dibenzanthrone with bromine in the presence of chlorosulfonic acid and of a halogenation catalyst to a bromine content from 26 to 32% by weight and a chlorine content from 1 to 5% by weight, and b) condensation of the isolated halogenation product with 1-aminoanthraquinone in a molar ratio from 1:2 to 1:2.5 in the presence of an inert solvent, the concentration of halogenated dibenzanthrone and 1-aminoanthraquinone together being at least 200 g/l of solvent The dyes are useful for dyeing or printing cellulose-containing textile material.
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申请公布号 |
GB2283245(A) |
申请公布日期 |
1995.05.03 |
申请号 |
GB19940021137 |
申请日期 |
1994.10.20 |
申请人 |
* BASF AKTIENGESELLSCHAFT |
发明人 |
MATTHIAS * NIEDENBRUECK;MANFRED * PATSCH;MICHAEL * SCHMITT |
分类号 |
C09B3/80;C07C49/697;C09B3/30;D06P1/24;D06P3/60;(IPC1-7):C09B3/30 |
主分类号 |
C09B3/80 |
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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