Azoxy dyes and copper complexes thereof

US6903197B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Rainer Tresch · Frankenthal (Pfalz), DE
• Karl-Heinz Etzbach · Bischofswerda, DE
• Rudiger Sens · Ludwigshafen, DE
• Claudia Krah · Mutterstadt, DE

Key dates

• Filing date: Mar 9, 2004
• Grant date: Jun 7, 2005
• Expiry date: Mar 9, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B43/44
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Azoxy dyes of the general formula I in the form of the free acid where