Complex dye mixture containing at least two cobalt 1:2 complexes

Details Complex dye mixture containing at least two cobalt 1:2 complexes Complex dye mixture containing at least two cobalt 1:2 complexes

1981-12-02

1984-10-02

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

8639, 8636, 260163, C09B 4510, C09B 4520, D06P 110, D06P 302

Patent

active

044746954

ABSTRACT:
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.

REFERENCES:
patent: 2120799 (1938-06-01), Crossley et al.
patent: 2809962 (1957-10-01), Freyermuth et al.
patent: 2826572 (1958-03-01), Kuster
patent: 3468618 (1969-09-01), Buehler et al.

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