Water-soluble fiber-reactive dyes, preparation thereof and use thereof

US6046311A · kind A · utility

Assignee

• DyStar Textilfarben GmbH & Co. Deutschland KG · DE

Inventors

• Wilfried Hansmann · Leverkusen, DE
• Hermann Henk · Cologne, DE
• Stefan Ehrenberg · Hattersheim, DE
• Wolfram Reddig · Bensberg, DE

Key dates

• Filing date: Mar 19, 1998
• Grant date: Apr 4, 2000
• Expiry date: Mar 19, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/4401
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Dyes containing a 5,6-difluoropyrimidin-4-yl radical as fiber-reactive group are useful for dyeing hydroxy- and/or carboxamido-containing material, including fiber material, for example cellulose fibers, wool and polyamide.