Methine and azamethine dyes based on trifluoromethylpyridones

US5892046A · kind A · utility

Assignee

• BASF SE

Inventors

• Clemens Grund · Hattersheim, DE
• Helmut Reichelt · Neustadt, DE
• Andreas Schmidt · Schwarzheide, DE
• Stefan Beckmann · Mannheim, DE

Key dates

• Filing date: Apr 24, 1997
• Grant date: Apr 6, 1999
• Expiry date: Apr 24, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B23/164
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to trifluoromethylpyridone-based methine and azamethine dyes of the formula I ##STR1## a process for their thermal transfer, a process for dyeing or printing synthetic materials and their use.