Water-based colorant preparations

US7008475B2 · kind B2 · utility

Assignee

• Clariant Corporation · DE

Inventors

• Rudolf Randler · Dallenwil, CH
• Ulrike Rohr · Mannheim, DE
• Josef Geisenberger · Pocking, DE
• Ruediger Baur · Niedernhausen, DE
• Hans-Tobias Macholdt · Darmstadt, DE
• Heidemarie Menzel · Bad Soden, DE

Key dates

• Filing date: Jun 21, 2002
• Grant date: Mar 7, 2006
• Expiry date: Jan 6, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D17/001
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to aqueous colorant preparations containing A) between 0.1 and 50 wt. % of at least one organic and/or inorganic pigment and/or at least one organic colorant. B) between 0.01 and 80 wt. % of at least one naphthol-oxyalkylate sulfopropyl ether, one alkanol-oxyalkylate sulfopropyl ether or one alkylphenol-oxyalkylate sulfopropyl ether. C) between 0 and 30 wt. % of at least one organic solvent. D) between 0 and 20 wt. % of other standard derivatives and E) between 10 and 90 wt % of water, respectively in relation to the total weight (100%) of the colorant preparation. The colorant preparation is used, for example, in printing inks, especially ink jet printing inks.