Azo dyes with a coupling component of the aminothiazole series

US5789560A · kind A · utility

Assignee

• BASF SE

Inventors

• Karl-Heinz Etzbach · Bischofswerda, DE
• Rudiger Sens · Ludwigshafen, DE

Key dates

• Filing date: Jan 22, 1997
• Grant date: Aug 4, 1998
• Expiry date: Jan 22, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S428/914
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Azo dyes of the formula ##STR1## where D is the radical of a diazo component of the aniline series or the series of the aromatic heterocyclic amines, PA1 R.sup.1 and R.sup.2 are each C.sub.1 -C.sub.10 -alkyl, which may be substituted, C.sub.5 -C.sub.7 -cycloalkyl, C.sub.3 -C.sub.4 -alkenyl, substituted or unsubstituted phenyl, or are together with the nitrogen atom joining them together a heterocyclic radical, and PA1 R.sup.3 is tert-butyl or tert-pentyl, are useful for thermal transfer and for dyeing or printing synthetic materials.