Disazo reactive dyestuffs

Details Disazo reactive dyestuffs Disazo reactive dyestuffs

1994-04-22

1996-04-30

Powers, Fiona T.

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

Organic compounds

Azo

534634, 534635, 534637, 8549, C09B 6201, C09B 6203, D06D 138

Patent

active

055126634

ABSTRACT:
Reactive dyestuffs, a process for their preparation and their use and novel intermediates and a process for their preparation.
Reactive dyestuffs of the formula (I) ##STR1## are described, in which A denotes a radical of the formula ##STR2## B denotes a bridging member, and R.sub.1, R.sub.2, R.sub.3, R.sub.4 and X have the meanings given in the description.

REFERENCES:
patent: 2993038 (1961-07-01), Fasciati et al.
patent: 5288294 (1994-02-01), Kaser
6001 Chemical Abstracts, 115 (1991) Jul., 15, No. 2; CA#10841q: "Manufacture of C.I. Direct Blue 67", J. Baraniak et al.

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