发明授权
US4474695A Complex dye mixture containing at least two cobalt 1:2 complexes of azo
dyes
失效
含有至少两种偶氮染料1:2钴络合物的复合染料混合物
- 专利标题: Complex dye mixture containing at least two cobalt 1:2 complexes of azo dyes
- 专利标题(中): 含有至少两种偶氮染料1:2钴络合物的复合染料混合物
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申请号: US326928申请日: 1981-12-02
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公开(公告)号: US4474695A公开(公告)日: 1984-10-02
- 发明人: Klaus Grychtol , Dietrich Lach
- 申请人: Klaus Grychtol , Dietrich Lach
- 申请人地址: DEX Ludwigshafen
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DEX Ludwigshafen
- 优先权: DEX3049552 19801231
- 主分类号: C09B29/50
- IPC分类号: C09B29/50 ; C09B45/20 ; C09B67/22 ; D06P3/32 ; C09B45/10 ; D06P1/10 ; D06P3/02
摘要:
Mixtures of two or more cobalt 1:2 complexes of azo dyes of the formula I ##STR1## where R is ##STR2## where R.sup.1 is hydrogen, C.sub.1 -C.sub.18 -alkyl, or hydroxyalkyl or alkoxyalkyl which may be interrupted by oxygen, and X and Y are hydrogen, fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy.The mixtures according to the invention are particularly useful for dyeing leather.