1,7-disubstituted perylene-3,4,9, 10-tetracarboxylic acids, their dianhydrides and diimides of said acids

US6063181A · kind A · utility

Assignee

• BASF SE

Inventors

• Arno Bohm · Mannheim, DE
• Harald Arms · Worms, DE
• Georg Henning · Ludwigshafen, DE
• Peter Blaschka · Ludwigshafen, DE

Key dates

• Filing date: Jun 18, 1998
• Grant date: May 16, 2000
• Expiry date: Jun 18, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K11/06
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

1,7-Disubstituted perylene-3,4,9,10-tetracarboxylic dianhydrides I and perylere-3,4,9,10-tetracarboxylic acids Ia ##STR1## where L.sup.1, L.sup.2 independently of one another are 1,2-ethylene, 1,2-ethenylene and 1,2-ethynylene, and PA1 R.sup.1, R.sup.2 independently of one another are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.30 -alkyl, their preparation and use as pigments, laser dyes and precursors for preparing fluorescent dyes, polymeric colorants, pigments and pigment additives, and also 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic diimides (VI) as their intermediates.