Use of aqueous polymer dispersions for modifying mineral building materials

US6075075A · kind A · utility

Assignee

• BASF SE

Inventors

• Andree Dragon · Speyer, DE
• Rolf Gulden · Bischofswerda, DE
• Maximilian Angel · Mutterstadt, DE

Key dates

• Filing date: Jul 15, 1996
• Grant date: Jun 13, 2000
• Expiry date: Jul 15, 2016

Classification

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

Abstract

Aqueous polymer dispersions whose polymer is composed of up to <5% by weight of (meth)acrylic acid, up to <5% by weight of (meth)acrylamide and from 90 to 97.5% by weight of other nonionic unsaturated monomers and is present as dispersed polymer particles having a weight average diameter of from 100 to 300 nm are used for modifying mineral building materials.