N-aminopyridone dyes

US5654122A · kind A · utility

Assignee

• BASF SE

Inventors

• Karl-Heinz Etzbach · Bischofswerda, DE
• Ernst Schefczik
• Ruediger Sens · Mannheim, DE
• Matthias Wiesenfeldt · Mutterstadt, DE

Key dates

• Filing date: Jun 6, 1995
• Grant date: Aug 5, 1997
• Expiry date: Jun 6, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41M5/39
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Pyridone dyes useful for thermal transfer have the formula ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 - alkyl, PA1 R.sup.2 and R.sup.3 are identical or different and each is, independently of the other, hydrogen, substituted or unsubstituted C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, substituted or unsubstituted phenyl, substituted or unsubstituted pyridyl, substituted or unsubstituted C.sub.1 -C.sub.12 -alkanoyl, C.sub.1 -C.sub.12 -alkoxycarbonyl, substituted or unsubstituted C.sub.1 -C.sub.12 -alkylsulfonyl, C.sub.5 -C.sub.7 -cycloalkylsulfonyl, substituted or unsubstituted phenylsulfonyl, substituted or unsubstituted pyridylsulfonyl, substituted or unsubstituted benzoyl, pyridylcarbonyl or thienylcarbonyl or are together with the nitrogen atom to which they are bonded unsubstituted or C.sub.1 -C.sub.4 - alkyl-substituted succinimido, unsubstituted or C.sub.1 -C.sub.4 -alkyl-substituted phthalimido or a five- or six-membered saturated heterocyclic radical which may contain further hetero atoms, PA1 X is CH or nitrogen, PA1 Y is cyano or a radical of the formula CO--W, CO--OW or CO--NHW where W is hydrogen, C.sub.1 -C.sub.8 -alkyl which may be substituted …