Bis 1:2 chromium complexes of disazo and azo or azomethine dyes

Details Bis 1:2 chromium complexes of disazo and azo or azomethine dyes Bis 1:2 chromium complexes of disazo and azo or azomethine dyes

1985-03-28

1987-03-24

Higel, Floyd D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

534582, 534695, 534697, 534699, 534700, 534738, 556 34, C09B 4506, C09B 4526, D06P 110

Patent

active

046526315

ABSTRACT:
1:2 chromium complex dyes suitable for dyeing nitrogen-containing materials and materials which contain hydroxyl groups, are disclosed which, in the form of the free acid, have the formula ##STR1## wherein each of the symbols independently has the following meanings: Z is nitrogen or a --CH,

REFERENCES:
patent: 2295050 (1942-09-01), Reynolds et al.
patent: 4256633 (1981-03-01), Beffa
patent: 4311641 (1982-01-01), Beffa
patent: 4502860 (1985-03-01), Back

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