发明名称 |
Vat dye based on flouranthene |
摘要 |
A vat dye based on monobromofluoranthene is prepared by a process in which monobromofluoranthene which contains no more than 7% of dibromofluoranthene is reacted with 1-amino-4-benzoylaminoanthraquinone, the reaction product is condensed at from 50 DEG to 70 DEG C. in 83-88% strength sulfuric acid to give the carbazole compound, and the latter is then further brominated to a bromine content of from 20 to 23% by weight. The dyes obtained by the novel process are very useful for dyeing cotton.
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申请公布号 |
US4925954(A) |
申请公布日期 |
1990.05.15 |
申请号 |
US19880275601 |
申请日期 |
1988.11.23 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
PATSCH, MANFRED;EPPLE, GERHARD;FLOHR, HELMUT;DEGEN, HELMUT;NAHR, UWE |
分类号 |
C09B5/28;C09B5/26 |
主分类号 |
C09B5/28 |
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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