Hydrophilic, swellable polymers

US5236965A · kind A · utility

Assignee

• Cassella Aktiengesellschaft · DE

Inventors

• Friedrich Engelhardt · Frankfurt, DE
• Gerlinde Ebert · Rödermark, DE

Key dates

• Filing date: Jan 19, 1993
• Grant date: Aug 17, 1993
• Expiry date: Jan 19, 2013

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S604/904
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The present invention relates to hydrophilic, swellable polymers which consist of radicals of the general formula I ##STR1## wherein R.sup.1 to R.sup.3 are defined as stated in the description, and of radicals of a crosslinking agent which have originated from monomers having at least two olefinically unsaturated double bonds, and which are characterized in that they are in the form of a highly porous, foam-like polyhedral structure, their preparation and their use as absorption agents for water and aqueous solutions.