Water-insoluble azo dyestuffs, processes for their manufacture and their use for dyeing and printing synthetic hydrophobic fiber material

US4431585A · kind A · utility

Assignee

• Cassella Aktiengesellschaft · DE

Inventors

• Horst Tappe · Dietzenbach, DE
• Ulrich Buhler · Alzenau, DE
• Kurt Roth · Waterloo, CA
• Hans-Jurgen Weyer · Frankenthal (Pfalz), DE
• Uwe Kosubek · Büttelborn, DE

Key dates

• Filing date: Feb 24, 1981
• Grant date: Feb 14, 1984
• Expiry date: Feb 24, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B43/42
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Water-insoluble azo dyestuffs suitable for dyeing and printing synthetic hydrophobic fiber materials are produced by azo coupling and have the formula ##STR1## wherein D is free from ionic moieties and is an unsubstituted or substituted phenyl, thiazole, isothiazole, benzthiazole, thiadiazole, benzisothiazole or thiophene moiety; PA1 A is alkylene having 2 to 6 carbon atoms which is unsubstituted or substituted by --OH; PA1 B is hydrogen, alkyl having 1 to 4 carbon atoms, hydroxyalkyl having 2 to 4 carbon atoms, alkoxyalkyl having 1 to 4 carbon atoms in the alkoxy moiety and a total of 3 to 8 carbon atoms, alkanoyloxyalkyl having 2 to 6 carbon atoms in the alkanoyl moiety and a total of 3 to 8 carbon atoms, hydroxypolyoxyalkylene having 4 to 12 carbon atoms, alkoxypolyoxyalkylene having 1 to 4 carbon atoms in the alkoxy moiety and a total of 5 to 16 carbon atoms, alkanoyloxypolyoxyalkylene having 2 to 5 carbon atoms in the alkanoyl moiety and a total of 5 to 16 carbon atoms, alkanoyl having 2 to 6 carbon atoms or benzoyl; PA1 R.sup.1 is hydrogen, methyl or chlorine; PA1 R.sup.2 is hydrogen, halogen, alkyl having 1 to 4 carbon atoms or alkoxy having 1 to 4 carbon atoms; PA1 and R.su…