Water-soluble copolymers containing sulfo groups, method for the production and use thereof

US7605196B2 · kind B2 · utility

Assignee

• CONSTRUCTION RESEARCH & TECHNOLOGY GMBH · DE

Inventors

• Michael Schinabeck · Garching bei München, DE
• Stefan Friedrich · San Gabriel, US
• Uwe Holland · Wehringen, DE
• Thomas Pfeuffer · Bad Waldsee, DE
• Michael Eberwein · Emmerting, DE
• Thomas Schuhbeck · Hemau, DE

Key dates

• Filing date: Jun 30, 2005
• Grant date: Oct 20, 2009
• Expiry date: Feb 12, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F220/285
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to water-soluble copolymers used as water retention agents, stabilizers and rheology modifiers in aqueous building material systems based on hydraulic binders such as cement, lime, plaster, anhydrite etc. and in water-based paint and coating systems. The inventive copolymers are highly effective water retention agents even when used in relatively small amounts. They also exhibit excellent air pore stability and adhesiveness. They can also be used as stabilizers in building material and paint systems.