Trisazo compounds useful in producing water-resistant ink compos

Details Trisazo compounds useful in producing water-resistant ink compos Trisazo compounds useful in producing water-resistant ink compos

1986-03-27

1988-03-29

Higel, Floyd D.

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

Organic compounds

Azo

106 22, 106 23, 106288Q, 534582, 534600, 534680, 534810, 534815, C09B 3118, C09B 3322, C09B 3546, C09D 1118

Patent

active

047344890

ABSTRACT:
An azo compound of the formula: ##STR1## wherein R is of the formula: ##STR2## R.sub.1 is hydrogen, methyl or --SO.sub.3 M; R.sub.2 is hydrogen or --SO.sub.3 M; R.sub.2 is hydrogen or --SO.sub.3 M; R.sub.3 is C.sub.4 -C.sub.18 alkyl and M is hydrogen, an alkali metal, ammonium or organic ammonium, provided that when R includes --SO.sub.3 M, R.sub.1 l and R.sub.2 are not --SO.sub.3 M, and when R does not include --SO.sub.3 M, either one of R.sub.1 and R.sub.2 is --SO.sub.3 M, which is useful as a black dyestuff for a solvent type ink composition, particularly for ink jet recording.

REFERENCES:
patent: 858444 (1907-07-01), Dressel et al.
patent: 3917887 (1975-11-01), Stiller
patent: 4097476 (1978-06-01), Wicki
patent: 4255327 (1981-03-01), Brode
patent: 4468348 (1984-08-01), Wicki
patent: 4592756 (1986-06-01), Kawasaki et al.

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