Azo dyes with A2-aminothiophene dye azo component and a coupling component and coupling component of the diphenylamine series

US5270456A · kind A · utility

Assignee

• BASF SE

Inventors

• Erwin Hahn · Heidelberg, DE
• Guenter Hansen · Ludwigshafen, DE
• Karl-Heinz Etzbach · Bischofswerda, DE
• Helmut Reichelt · Neustadt, DE
• Ernst Schefczik
• Sabine Greuttner · Mutterstadt, DE
• Helmut Degen · Bischofswerda, DE

Key dates

• Filing date: Jul 10, 1991
• Grant date: Dec 14, 1993
• Expiry date: Jul 10, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S8/922
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Thiopheneazo dye I which are chiefly useful as disperse dyes for dyeing textile material, in particular polyesters, have the formula ##STR1## where the substituents are as defined in the description.