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:
Apr. 20, 2021
Filed:
Dec. 21, 2015
Applicant:
Upm-kymmene Corporation, Helsinki, FI;
Inventor:
Isko Kajanto, Espoo, FI;
Assignee:
UPM-KYMMENE CORPORATION, Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 8/73 (2006.01); B01J 13/00 (2006.01); A61K 8/04 (2006.01); A61L 2/00 (2006.01); A61L 2/26 (2006.01);
U.S. Cl.
CPC ...
B01J 13/0069 (2013.01); A61K 8/042 (2013.01); A61K 8/731 (2013.01); A61L 2/0023 (2013.01); A61L 2/26 (2013.01); B01J 13/0065 (2013.01); A61L 2202/21 (2013.01);
Abstract
The invention relates to a method for treating a nanofibrillar cellulose hydrogel, wherein the method comprises the steps of: providing a nanofibrillar cellulose hydrogel, wherein the nanofibrillar cellulose is oxidized nanofibrillar cellulose, wherein the oxidation has been carried out through N-oxyl mediated catalytic oxidation of cellulose-based raw material, and has at most 50 μmol of aldehyde groups per gram of dry nanofibrillar cellulose; and subjecting the nanofibrillar cellulose hydrogel to a heat treatment.