Water-soluble azo dyes containing diaminopyrimidine coupler components

US4145341A · kind A · utility

Assignee

• BASF SE

Inventors

• Johannes Dehnert · Ludwigshafen, DE
• Guenter Dunkelmann

Key dates

• Filing date: Dec 22, 1975
• Grant date: Mar 20, 1979
• Expiry date: Dec 22, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/82
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Dyes having the formula: ##STR1## IN WHICH D is the radical of a diazo component; and PA0 A is the radical of a pyrimidine coupling component bearing two unsubstituted or substituted amino groups as substituents. The dyes are eminently suitable for dyeing natural and synthetic polyamides; brilliant colorations are obtained.