Colorant mixtures containing azo compounds based on phenyloxadiazolylaniline

US5344465A · kind A · utility

Assignee

• BASF SE

Inventors

• Horst Colberg · Schifferstadt, DE
• Joachim Jesse · Bad Dürkheim, DE

Key dates

• Filing date: Mar 25, 1992
• Grant date: Sep 6, 1994
• Expiry date: Mar 25, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D11/037
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A colorant mixture for use in printing inks contains a pigment of formula I ##STR1## a basic dye of the formula II ##STR2## where the substituents are as defined in the specification L-A. and exhibits higher color strength than that of the pigment of formula I alone.