Light-fast disazo dyestuffs

Details Light-fast disazo dyestuffs Light-fast disazo dyestuffs

1997-09-17

1998-12-01

Powers, Fiona T.

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

Organic compounds

Azo

534819, 534598, 534599, 534591, C09B 3108, D06P 358, D21H 2128

Patent

active

058441018

ABSTRACT:
The novel dyestuffs of the formula (I) ##STR1## in which the substituents R and X have the meaning given in the description, are outstandingly suitable for dyeing cellulosic materials in blue color shades which are particularly fast to light.

REFERENCES:
patent: 5225545 (1993-07-01), Lauk
patent: 5288294 (1994-02-01), Kaser
patent: 5487761 (1996-01-01), Kaser
patent: 5512663 (1996-04-01), Kunde
patent: 5542956 (1996-08-01), McMullan et al.
patent: 5559217 (1996-09-01), Kaser

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