Benzothioxanthene dyes, their preparation and their use

Details Benzothioxanthene dyes, their preparation and their use Benzothioxanthene dyes, their preparation and their use

1997-03-10

1998-07-21

Lambkin, Deborah C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

430343, 347 88, 8650, 260DIG38, C07D33504, G03C 1725, B41J 2175, C09B 6728

Patent

active

057837104

ABSTRACT:
The present invention relates to benzothioxanthene dyes of the formula I, ##STR1## in which R.sup.1 is SO.sub.3.sup..crclbar. M.sup..sym. or SO.sub.2 NR.sup.4 R.sup.5, R.sup.2 and R.sup.3 independently of one another are hydrogen, SO.sub.3.sup..crclbar. M.sup..sym. or SO.sub.2 NR.sup.4 R.sup.5 and X, Y, n, R.sup.4, R.sup.5 and M.sup..sym. are as defined in claim 1, to their preparation and to their use, especially in inks and recording liquids.

REFERENCES:
patent: 4315865 (1982-02-01), Hoyer et al.
patent: 5415669 (1995-05-01), Buhler et al.

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