Dyeing OH- or amido-containing materials with reactive dyestuffs containing a difluoropyrimidine radical

US5538518A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfram Reddig · Bensberg, DE
• Karl-Josef Herd · Odenthal, DE

Key dates

• Filing date: Apr 17, 1995
• Grant date: Jul 23, 1996
• Expiry date: Apr 17, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/22
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Dyeing and printing of natural or synthetic OH-- and/or amido-containing materials, in particular, those made of cotton and polyamides, with reactive dyestuffs which in the form of the free acid are of the formula ##STR1## wherein A is a chromophoric radical.