Aqueous polymer dispersions

US5576404A · kind A · utility

Assignee

• BASF SE

Inventors

• Wilhelm Friedrich Beckerle · Frankenthal (Pfalz), DE
• Rolf Petri · Bischofswerda, DE
• Bernhard Dotzauer · Frankenthal (Pfalz), DE
• Manfred Schwartz · Bischofswerda, DE
• Maximilian Angel · Mutterstadt, DE

Key dates

• Filing date: Dec 14, 1995
• Grant date: Nov 19, 1996
• Expiry date: Dec 14, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2103/0057
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Aqueous dispersions of polymers which have a high glass transition temperature and a low average molecular weight and contain a specific amount of methacrylic acid as polymerized units are suitable, in liquid or dried form, as additives for improving the flow behavior of cement-containing mineral building materials having binding properties.