Colorant preparations

US6770331B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Manfred Mielke · Heidelberg, DE
• Friedrich-Wilhelm Raulfs · Ludwigshafen, DE
• Ulrike Schlosser · Ludwigshafen, DE
• Rudiger Sens · Ludwigshafen, DE
• Karl Siemensmeyer · Bischofswerda, DE
• Dieter Freyberg · Einselthum, DE
• Mike Freche · Kerzenheim, DE

Key dates

• Filing date: Feb 13, 2002
• Grant date: Aug 3, 2004
• Expiry date: Jun 21, 2022

Classification

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

Abstract

The invention relates to colorant preparations containing the following main constituents: A) at least one dispersed (A1) or dissolved (A2) colorant; B) if a colorant corresponding to (A1) is used, a dispersing agent; C) a low-molecular polytetrahydurofurane (C1), optionally mixed with one or more difficult-to-evaporate, water-soluble or water-miscible organic solvents (C2); and D) water.