Azo dyes containing a thiazole component

US4207233A · kind A · utility

Assignee

• BASF SE

Inventors

• Guenther Seybold · Schifferstadt, DE
• Heinz Eilingsfeld · Bischofswerda, DE

Key dates

• Filing date: Aug 24, 1977
• Grant date: Jun 10, 1980
• Expiry date: Aug 24, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B31/025
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Azo dyes of the formula ##STR1## where A is a radical of a diazo component, B is a radical of a coupling component and R is hydrogen, halogen, a substituted or unsubstituted hydrocarbon radical, substituted or unsubstituted alkoxy or aroxy, or substituted amino. The dyes are eminently suitable for dyeing polyester and particularly for cellulose and blends of cellulose with polyesters.