Tricationic dyes

US7794509B2 · kind B2 · utility

Assignee

• Ciba Corp. · US

Inventors

• Christian Cremer · Aachen, DE
• Olof Wallquist · Basel, CH
• Victor Paul Eliu · Lörrach, DE
• Kishor Ramachandra Nivalkar · Mumbai, IN

Key dates

• Filing date: Jun 4, 2007
• Grant date: Sep 14, 2010
• Expiry date: Jun 4, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B69/001
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Disclosed are tricationic dye compounds, useful for dyeing hair, wool, leather, silk, cellulose or polyamides. The dye compounds are of formula (1), where the groups are as defined in the specification and claims.[D-E1=E2-K]3+(An1−) (An2−) (An3−)   (1)