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. 22, 2014
Filed:
Oct. 30, 2008
Applicant:
Mats Andersson, Uttran, SE;
Inventor:
Mats Andersson, Uttran, SE;
Assignee:
Viscogel, AB, Solna, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B 37/08 (2006.01); A61K 31/722 (2006.01); A61K 47/36 (2006.01); A61K 47/38 (2006.01); A61K 8/73 (2006.01); A61K 9/14 (2006.01); A61K 9/52 (2006.01); A61P 37/04 (2006.01); A61P 13/00 (2006.01); A61P 43/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention relates to a cross-linkable chitosan composition comprising chitosan having a degree of deacetylation between 30 and 75%, wherein the chitosan is randomly deacetylated, and a cross-linking agent, wherein the molar ratio of the cross-linking agent to chitosan is 0.2:1 or less based on the number of functional groups in the cross-linking agent and the number of accessible amino groups in the chitosan. The invention also provides a chitosan hydrogel formed therefrom and uses thereof.