Cyanoborate, fluoroalkylphosphate, fluoroalkylborate or imide dyes

US7939644B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Nikolai (Mykola) Ignatyev · Duisburg, DE
• Urs Welz-Biermann · Mannheim, DE
• Helge Willner · Neheim, DE
• Maik Finze · Nienburg, DE
• Eduard Bernhardt · Duisburg, DE
• Andriy Kucheryna · Wuppertal, DE

Key dates

• Filing date: Jul 22, 2004
• Grant date: May 10, 2011
• Expiry date: Feb 14, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B69/06
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to dyes of the general formula CAT+ Y− (I), where Y− is an anion selected from the group of the cyanoborates, fluoroalkylphosphates, fluoroalkylborates or imidates and CAT+ is a cation selected from the group of the azine, xanthene, polymethine, styryl, azo, tetrazolium, pyrylium, benzopyrylium, thiopyrylium, benzothiopyrylium, thiazine, oxazine, triarylmethane, diarylmethane, methine, acridine, quinoline, isoquinoline or quaternary azafluorenone dyes, for colouring plastics and plastic fibres, for the preparation of flexographic printing inks, as ball-point pen pastes, as stamp ink, for colouring leather and paper, for use in data acquisition systems, reprography, in ink microfilters, in photogalvanics, laser technology and the photo industry.