Water-insoluble azo dyestuffs

Details Water-insoluble azo dyestuffs Water-insoluble azo dyestuffs

1975-11-11

1977-07-12

Wong, Jr., Harry

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 41B, 8 41C, 8178R, 8179, 260205, 260207, 2602071, D06P 300, D06P 500, C07C10706, C09B 2914

Patent

active

040351432

ABSTRACT:
A water-insoluble azo dyestuff of the formula ##STR1## wherein D is an optionally substituted aromatic or heteroaromatic radical free of ionic groups; X is hydrogen or optionally substituted alkoxy; Y is hydrogen, optionally substituted alkyl, alkenyl, cycloalkyl, phenyl, hetaryl, alkoxy or phenoxy or --NHR.sup.4 wherein R.sup.4 is alkyl, alkenyl, cycloalkyl, aralkyl or aryl; R.sup.1 and R.sup.2 are hydrogen or alkyl and R.sup.3 is optionally substituted alkyl and its utility in the dyeing and printing of hydrophobic synthetic fibers and films such as polyesters.

REFERENCES:
patent: 2277230 (1942-03-01), Heinrich
patent: 3268507 (1966-08-01), Kruckenberg
patent: 3406165 (1968-10-01), Kruckenberg
patent: 3544550 (1970-12-01), Anderton et al.
patent: 3553190 (1971-01-01), Anderton et al.
patent: 3558593 (1971-01-01), Lindner et al.
patent: 3637651 (1972-01-01), Baron et al.
patent: 3766164 (1973-10-01), Hahnle

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