The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 2009
Filed:
Jun. 26, 2008
Applicants:
Richard Mertens, Krefeld, DE;
Olaf Höller, Greensboro, NC (US);
Inventors:
Richard Mertens, Krefeld, DE;
Olaf Höller, Greensboro, NC (US);
Assignee:
Evonik Stockhausen GmbH, Krefeld, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 21/04 (2006.01);
U.S. Cl.
CPC ...
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.