Dye mixtures containing polyazo dyes and CI Sulphur Black 1 dye

US5972050A · kind A · utility

Assignee

• BASF SE

Inventors

• Matthias Wiesenfeldt · Mutterstadt, DE
• Johannes P. Dix · Schifferstadt, DE
• Rolf Streicher · Worms, DE
• Manfred Herrmann
• Gunther Lamm · Haßloch, DE

Key dates

• Filing date: Oct 26, 1998
• Grant date: Oct 26, 1999
• Expiry date: Oct 26, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B67/0055
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Mixtures comprise the dye of the formula I ##STR1## the dye C.I. Sulphur Black 1 (53 185), at least one disazo dye of the formula II ##STR2## where the ring A, X.sup.1, R.sup.1, R.sup.2 and R.sup.3 are each as defined in the description part, and at least one polyazo dye of the formula III ##STR3##