Surface active random radical (co)polymer and dispersion method for using the same

US6624219B1 · kind B1 · utility

Assignees

• BASF SE
• Symyx Technologies, Inc. · US

Inventors

• Robert Heger · Heidelberg, DE
• Wolfgang Schrof · Neuleiningen, DE
• Michael Seufert · Bad Dürkheim, DE
• Helmut Auweter · Schifferstadt, DE
• Walter Machtle · Ludwigshafen, DE
• Rudiger Iden · Speyer, DE
• Dieter Horn · Heidelberg, DE
• Ralph B. Nielsen · San Jose, US
• Eric J. Carlson · Andover, US
• Chang Han-Ting · Livermore, US
• Sigrid C. Kuebler · Sunnyvale, US
• Petro Miroslav · San Jose, US

Key dates

• Filing date: Aug 17, 2000
• Grant date: Sep 23, 2003
• Expiry date: Aug 17, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D139/08
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a set of (co)polymers, dispersion formulations, solid solutions and formulation conditions able to disperse a dye selected from the group of a monoazo dye, quinophthalone dye and an anthraquinone dye in a stable nanoparticular form in an aqueous medium.