Patent Number: 7,612,016

Title: Preparation of superabsorbent polymers

Abstract: The invention describes superabsorbent polymers composed of surface-post crosslinked polycarboxypolysaccharides having excellent age-stable absorption properties, even under load, high attrition resistance and biodegradability and their use for absorbing water, aqueous or serous fluids and also blood. Also disclosed is a method of making which is impervious to changes in raw material quality and which provides consistent product quality.

Inventors: Mertens; Richard (Krefeld, DE), Holler; Olaf (Greensboro, NC)

Assignee: Evonik Stockhausen GmbH

International Classification: B01J 21/04 (20060101)

Expiration Date: 1/03/02017