Isoindolineazo pigments

US5484901A · kind A · utility

Assignee

• BASF SE

Inventors

• Michael Krapp · Nattheim, DE
• Georg Henning · Ludwigshafen, DE

Key dates

• Filing date: Mar 22, 1995
• Grant date: Jan 16, 1996
• Expiry date: Mar 22, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B57/04
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Isoindolineazo pigments of the general formula I ##STR1## where A is the radical of an active-methylene compound or .dbd.S; PA1 L is substituted or unsubstituted 1,4-phenylene, 1,3-phenylene or 1,5-naphthylene; PA1 K is the radical of a coupling component K--H; and the benzene ring D is optionally substituted, are useful for pigmenting high polymer organic materials.