Azo dyes containing a diazotized 5-amino isothiazol moiety havin

Details Azo dyes containing a diazotized 5-amino isothiazol moiety havin Azo dyes containing a diazotized 5-amino isothiazol moiety havin

1982-02-05

1984-04-24

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260141, 260158, C09B 29039, C09B 2909, C09B 2936, C09B 2944

Patent

active

044446845

ABSTRACT:
This invention relates to azo dyes in which the diazotized amino component bears a sulfonic acid or salt group on its ring. These dyes have excellent dyeing properties on polyamide fibers, particularly nylon carpets and also impart color to cellulose acetate fibers and wool.
The dyes correspond to the general formula: ##STR1## wherein R.sup.1 is selected from hydrogen and alkyl; M is H.sup.+, Na.sup.+, K.sup.+, Li.sup.+ or NH.sub.4.sup.+ ; and the coupler C is selected from a variety of couplers including anilines, tetrahydroquinolines, phenols , and the like which may be substituted with known substituents such as halogen, alkyl, alkoxy, acylamido, sulfamoyl, carbamoyl and the like.

REFERENCES:
patent: 3143540 (1964-08-01), Meen et al.
patent: 4330467 (1982-05-01), Fleischer et al.

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