Fibre-reactive copper-complex formazan compounds which contain a

Details Fibre-reactive copper-complex formazan compounds which contain a Fibre-reactive copper-complex formazan compounds which contain a

1994-05-20

1996-02-13

Richter, Johann

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

Organic compounds

Azo

8549, C09B 62465, C09B 6220, D06P 138

Patent

active

054912210

ABSTRACT:
Fibre-reactive formazan compounds, salts thereof or free acid forms thereof according to formula (I) ##STR1## in which R.sub.1 is hydrogen or --COOH, each of R.sub.2 and R.sub.4 is independently hydrogen, --COOH, --SO.sub.3 H, --NHCOCH.sub.3, --NHCOCHY.sub.2 --CH.sub.2 Y.sub.1, --NHCOCY.sub.2 .dbd.CH.sub.2 or --NHCOCH.sub.2 Y.sub.1,

REFERENCES:
patent: 3068219 (1962-12-01), Beffa et al.
patent: 3565881 (1971-02-01), Dussy et al.
patent: 3725382 (1973-04-01), Grandjean
patent: 4024123 (1977-05-01), Dussy et al.
Derwent Abstract of EP 443,163 (Aug. 28, 1991).
Derwent Abstract of EP 522,339 (Jan. 13, 1993).

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