Novel heterocycle-containing trisazo dyes

US4784668A · kind A · utility

Assignee

• BASF SE

Inventors

• Walter Breitschaft · Ludwigshafen, DE
• Udo Mayer · Bischofswerda, DE
• Guenther Seybold · Schifferstadt, DE

Key dates

• Filing date: May 13, 1987
• Grant date: Nov 15, 1988
• Expiry date: May 13, 2007

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06P3/3226
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Compounds which, in the form of the free acid, are of the general formula I ##STR1## where D is phenyl which unsubstituted or substituted by fluorine, chlorine, bromine, nitro, cyano, C.sub.1 -C.sub.4 -alkylsulfonyl, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.4 -alkoxy, carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl or hydroxysulfonyl or by unsubstituted or substituted carbamyl or sulfamyl, and PA1 K is a radical of a heterocyclic coupling component, and the rings A and E may furthermore be substituted by methyl, methoxy, chlorine or hydroxysulfonyl.