Heterocyclic immonium group containing azo dyes
Abstract
Abstract DYES OF THE FORUMLA (3-R1,4-(R4-N(-R5)-CO-CH(-R3)-CH2-N(-R5)-)PHENYL)-N=N- C<(-W1-) A(-) WHEREIN R1 IS HYDROGEN, HALO, ALKYL, SUBSTITUTED ALKYL, ALKOXY OR SUBSTITUTED ALKOXY, R2 IS HYDROGEN, ALKYL, SUBSTITUTED ALKYL, ARYL, SUBSTITUTED ARYL OR -CH2-CH(-R3)-CO-N(-R4)-R5 R3 IS HYDROGEN, ALKYL OR SUBSTITUTED ALKYL, EACH OF R4 AND R5 IS INDEPENDENTLY HYDROGEN, ALKYL, SUBSTITUTED ALKYL, CYCLOALKYL, SUBSTITUTED CYCLOALKYL, ARYL OR SUBSTITUTED ARYL. -C<(-W1-) IS A HETEROCYCLIC RING CONTAINING AT LEAST ONE QUATERNARY NITROGEN GROUP, E.G., BENZOTHIAZOLIUM IMIDAZOLIUM, IDAZOLIUM, PYRAZOLIUM, OXAZOLIUM, ISOXAZOLIUM, PYRIDIAZINIUM AND THIAZOLIUM, AND SUBSTITUTED DERIVATIVES THEREOF, AND AO IS AN ANION. THE DYES ARE SUITABLE FOR DYEING AND PRINTING POLYACRYLONITRILE AND ACRYLONITRILE COPOLYMER FIBERS. RESULTING DYEINGS HAVE GOOD FASTNESS TO LIGHT, WASHING, PERSPIRATION, SUBLIMATION, STEAMING, WATER AND CROSS-DYEING.
Inventors
- 👤 R Entschel
- 👤 V Kaeppeli
Bibliographic Details
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