发明名称 |
Process for preparing dye mixtures |
摘要 |
Preparation of dyes by reacting mono- and bisdiazo compounds with certain dye intermediates (coupling components) which are obtainable by reacting the compounds of the formulae (I) and (II) with formaldehyde as described in the claims, and use of the dyes, in particular for leather. <IMAGE>
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申请公布号 |
CH621568(A5) |
申请公布日期 |
1981.02.13 |
申请号 |
CH19750005373 |
申请日期 |
1975.04.25 |
申请人 |
SANDOZ AG |
发明人 |
HERBERT HOLLIGER;DR. HEINZ WICKI |
分类号 |
C09B29/14;C09B33/04;D06P3/32;(IPC1-7):C09B29/14;C09B35/02;D21H3/80 |
主分类号 |
C09B29/14 |
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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