Methine and azamethine dyes based on trifluoromethylpyridones

US5962691A · kind A · utility

Assignee

• BASF SE

Inventors

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

Key dates

• Filing date: May 9, 1997
• Grant date: Oct 5, 1999
• Expiry date: May 9, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S428/914
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Pyridone dyes of the formula I ##STR1## where X is nitrogen or CH, PA1 R.sup.1 is a 5-membered or 6-membered carbocyclic or heterocyclic radical, PA1 R.sup.2 is cyano, carbamoyl, C.sub.1 -C.sub.6 -alkoxycarbonyl or C.sub.1 -C.sub.4 -alkanoyl and PA1 R.sup.3 is unsubstituted or substituted C.sub.1 -C.sub.13 -alkyl, unsubstituted or substituted phenyl or unsubstituted or substituted amino, a method for their thermal transfer and a method for coloring or printing synthetic materials by means of the novel dyes. The invention concerns pyridone dyes of the formula (I) in which X is nitrogen or CH, R.sup.1 is a five-membered or six-membered carbocyclic or heterocyclic group, R.sup.2 is cyano, carbamoyl, C.sub.1 -C.sub.6 alkoxycarboyl or C.sub.1 -C.sub.4 alkanoyl and R.sup.3 is optionally substituted C.sub.1 -C.sub.13 alkyl, optionally substituted phenyl or optionally substituted amino. The invention also concerns a method for the thermal transfer of such dyes as well as a method for dyeing or printing on synthetic materials using the dyes.