Compounds useful for the preparation of bi-and polyfunctional reactive dyestuffs

US5686642A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Konrad Bootz · Wetter, DE
• Manfred Hoppe · Kürten, DE
• Eckhard Bock · Kempten (Allgäu), DE
• Wolfram Reddig · Bensberg, DE
• Thomas Eizenhofer · Neunburg vorm Wald, DE
• Wolfgang Harms · Leverkusen, DE
• Karl-Josef Herd · Odenthal, DE

Key dates

• Filing date: Jul 16, 1996
• Grant date: Nov 11, 1997
• Expiry date: Jul 16, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C381/02
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Reactive dyestuffs which, in the form of the free acid, correspond to the following formula ##STR1## wherein D is the radical of an organic dyestuff of the mono-azo, polyazo or metal complex azo series and the other substituents have the meaning given in the description, show improved application properties.