Preparation of an aqueous polymer dispersion

US5994457A · kind A · utility

Assignee

• BASF SE

Inventors

• Bernd Stanger · Dudenhofen, DE
• Peter Keller · Bruchmühlbach-Miesau, DE
• Jürgen Hartmann · Wesel, DE
• Chung-Ji Tschang · Bad Dürkheim, DE

Key dates

• Filing date: Feb 28, 1997
• Grant date: Nov 30, 1999
• Expiry date: Feb 28, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F6/006
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Described is a method of producing an aqueous polymer dispersion, the method calling for further polymerization of the dispersion using a radical mechanism redox initiator system including as the reducing agent the addition compound obtained between a lower ketone and hydrogen sulphite.