Cationic polyurethane-based polymer dispersions

US5929161A · kind A · utility

Assignee

• Vianova Resins AG · DE

Inventors

• Markus Schafheutle · Hochheim, DE
• Achim Voelker · Offenbach, DE
• Susanne Wehner · Villmar, DE
• Klausjoerg Klein · Wuppertal, DE

Key dates

• Filing date: Jun 23, 1997
• Grant date: Jul 27, 1999
• Expiry date: Jun 23, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D5/4492
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Process for preparing aqueous dispersions by free-radically initiated emulsion polymerization of one or more vinyl monomers in water in the presence of a cationically stabilized polyurethane as emulsifier.