Navy-blue nitrophenylazonaphthylamino dyes

Details Navy-blue nitrophenylazonaphthylamino dyes Navy-blue nitrophenylazonaphthylamino dyes

1974-03-07

1976-07-20

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260333, 2603457, 2603459, 2603473, 2603477, 2603478, 260575, C09B 2936, D06P 354

Patent

active

039706176

ABSTRACT:
Disperse monoazo dyes which are useful for the dyeing and printing of polyester fibers in navy-blue shades and which are of the formula: ##SPC1##
Wherein R.sub.1 is halogen or CN; R.sub.2 is CN or NO.sub.2 ; R.sub.3 is alkylene; and n is 3 or 4; said dyes having good lightfastness and good hydrolytic stability.

REFERENCES:
patent: 2135964 (1938-11-01), Dahlen et al.
patent: 2173417 (1939-09-01), Huber
patent: 2249749 (1941-07-01), Dickey et al.
patent: 2266142 (1941-12-01), Adams
patent: 2373700 (1945-04-01), McNally et al.
patent: 3598802 (1971-08-01), Weaver

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