Imidazolymethylated copper phthalocyanine dyes

US5496378A · kind A · utility

Assignee

• BASF SE

Inventors

• Heidi Hengelsberg · Mannheim, DE
• Manfred Ruske · Ludwigshafen, DE
• Udo Mayer · Bischofswerda, DE

Key dates

• Filing date: Sep 12, 1994
• Grant date: Mar 5, 1996
• Expiry date: Sep 12, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S8/919
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Basic dyes of the formula ##STR1## where n is from 1 to 3, PA1 CuPc is a copper phthalocyanine radical, PA1 R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl, PA1 R.sup.2 is C.sub.1 -C.sub.4 -alkyl, PA1 R.sup.3 is hydrogen or C.sub.1 -C.sub.4 -alkyl, PA1 R.sup.4 is C.sub.1 -C.sub.4 -alkyl and PA1 An.sup..crclbar. is the equivalent of an anion, with the proviso that R.sup.1 and R.sup.3 are not both hydrogen, are useful for dyeing or printing polymeric material.