Preparation of aqueous polymer dispersions

US7566760B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Mubarik Mahmood Chowdhry · Strasbourg, FR
• Markus Schmid · Dietmanns, AT
• Peter Preishuber-Pfluegl · Ludwigshafen, DE
• Xavier Sava · Mannheim, DE
• Horst Weiss · Karlsruhe, DE
• Stefan Mecking · Konstanz, DE
• Martin Alexander Zuideveld · Kelmis, BE
• Florian Bauers · Burghausen, DE

Key dates

• Filing date: Jul 24, 2003
• Grant date: Jul 28, 2009
• Expiry date: Oct 25, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F110/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a method for the production of aqueous polymer dispersions, by the polymerisation of one or more olefins in aqueous media in the presence of dispersing agents and optionally organic solvents, characterised in that the polymerisation of the olefin(s) is catalysed by means of one or more complex compounds of general formula (I), where at least one of the groups R1 to R9 must be in the form of a group of the following general formula (II) where Z=an electron-withdrawing group and n=a whole number from 1 to 5.