Nanoparticulate active substance formulations

US7994227B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Sebastian Koltzenburg · Schifferstadt, DE
• Stephan Lehmann · Hahnbach, DE
• Bernhard Steinmetz · Meiningen, DE
• Wolfgang Schrof · Neuleiningen, DE
• Joachim Hadeler · Bischofswerda, DE
• Winfried Mayer · Bubenheim, DE
• Matthias Bratz · Schifferstadt, DE
• Werner Goedel · Ulm, DE

Key dates

• Filing date: Oct 19, 2004
• Grant date: Aug 9, 2011
• Expiry date: Feb 27, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F220/301
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to nanoparticulate formulations comprising at least one active compound or compound with a special effect and at least one random radical copolymer. The copolymers are formed from monomers carrying sulfonic acid groups and additional olefinically unsaturated compounds.The formulations are dispersible as nanoparticles in an aqueous medium. The invention includes, in addition, processes for the preparation of the solid and liquid formulations, and their use.