AOX-free navy and black disperse dyes

US9493657B2 · kind B2 · utility

Assignee

• DYSTAR COLOURS DISTRIBUTION GMBH · DE

Inventors

• Fanny Vermandel · Eppstein, DE
• Adrian Murgatroyd · Frankfurt am Main, DE
• Clemens Grund · Hattersheim, DE
• Manfred Hoppe · Kürten, DE
• Ulrich Weingarten · Ludwigshafen, DE

Key dates

• Filing date: Jan 6, 2014
• Grant date: Nov 15, 2016
• Expiry date: Jan 6, 2034

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06P3/6041
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

This invention relates to disperse azo dye mixtures, which have Navy or Black color and are AOX-free.