Water-absorbing polymers having interstitial compounds, a process for their production, and their use

US7101946B2 · kind B2 · utility

Assignee

• Stockhausen GmbH · DE

Inventors

• Helmut Brehm · Krefeld, DE
• Jorg Harren · Baesweiler, DE
• Richard Mertens · Krefeld, DE

Key dates

• Filing date: Feb 14, 2002
• Grant date: Sep 5, 2006
• Expiry date: Jun 14, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K3/34
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to absorbents for water and aqueous liquids, which absorbents are based on water-swellable, yet water-insoluble polymers wherein zeolites high in silicon have been incorporated ionically and/or as a result of mechanical inclusion.