Triazolyl coumarin compounds, processes for their preparation and their use as whiteners and laser dyestuffs

US4326066A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Udo Eckstein · Cologne, DE
• Roderich Raue · Dover, US
• Carl-Wolfgang Schellhammer · Bensberg, DE

Key dates

• Filing date: Jan 7, 1980
• Grant date: Apr 20, 1982
• Expiry date: Jan 7, 2000

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06L4/60
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Coumarin compounds of the formula ##STR1## in which the substituents have the meanings given in PA0 the description, are valuable whiteners for natural fibre materials, such as wool, or synthetic polycondensates. They can also be used as scintillators and laser dyestuffs.