Anthrapyrimidine dyes

US3939162A · kind A · utility

Assignee

• BASF SE

Inventors

• Wolfgang Elser · Fairfax, US
• Manfred Ruske · Ludwigshafen, DE

Key dates

• Filing date: Dec 19, 1973
• Grant date: Feb 17, 1976
• Expiry date: Dec 19, 1993

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B5/16
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Anthrapyrimidine dyes of the formula: ##SPC1## In which PA1 A is saturated alkylene of two to eight carbon atoms or cycloalkylene of six to eight carbon atoms; and ##EQU1## B is hydrogen, or IN WHICH X is saturated alkyl of one to nine carbon atoms which may bear other substituents, phenalkyl, a five-membered or six-membered heterocyclic ring, --NHR or --OR in which R is alkyl of one to six carbon atoms, cycloalkyl of six to eight carbon atoms or unsubstituted or substituted phenyl. On synthetic fibers or in thermoplastics the dyes give yellow to orange colorations which have very good fastness properties.