Cationic thiadiazole dyestuffs

Details Cationic thiadiazole dyestuffs Cationic thiadiazole dyestuffs

1995-03-23

1996-12-03

Powers, Fiona T.

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

Organic compounds

Azo

534608, 548141, 8437, 8506, 8510, 8655, 8917, 8919, 106 22K, C09B 4410, D06P 376, D06P 332, D21H 2128

Patent

active

055809642

ABSTRACT:
Cationic 1,3,4-thiadiazole dyestuffs of the formula ##STR1## in which the symbols used have the meaning given in the description, corresponding anhydrobases, processes for the preparation of the cationic 1,3,4-thiadiazole dyestuffs, their use for dyeing and printing various materials and as dichroic dyestuffs in polarizing films, and various materials which comprise such dyestuffs.

REFERENCES:
patent: 3691148 (1972-09-01), Peter et al.
patent: 5208325 (1993-05-01), Berneth et al.
patent: 5328994 (1994-07-01), Berneth et al.
patent: 5436323 (1995-07-01), Berneth et al.

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