Nitrobenzisothiazole azo dyestuff

US5824117A · kind A · utility

Assignee

• Dystar Japan Ltd. · JP

Inventors

• Ulrich Buhler · Alzenau, DE
• Jurgen Kuhlwein · Heusenstamm, DE
• Hubert Kruse · Kelkheim, DE

Key dates

• Filing date: Jun 28, 1996
• Grant date: Oct 20, 1998
• Expiry date: Jun 28, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S8/922
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to the dyestuff of the formula I ##STR1## modifications of this dyestuff which are stable during dyeing, processes for the preparation thereof and their use for dyeing and printing synthetic fiber materials.