发明名称 |
Process for the preparation of vat dyes from brominated dibenzanthrone and 1-aminoanthraquinone |
摘要 |
There is disclosed a process for the preparation of vat dyes that dye cellulosic material in a grey or black shade of good fastness properties. The process comprises brominating dibenzanthrone and reacting the brominated reaction product with 1-aminoanthraquinone in a single step.
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申请公布号 |
US4851157(A) |
申请公布日期 |
1989.07.25 |
申请号 |
US19860941668 |
申请日期 |
1986.12.15 |
申请人 |
CIBA-GEIGY CORPORATION |
发明人 |
BRENNER, WERNER |
分类号 |
C09B1/32;C09B3/30;C09B3/32;D06P1/24 |
主分类号 |
C09B1/32 |
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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