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:
Dec. 14, 2021
Filed:
Dec. 28, 2016
Applicant:
Galderma S.a., Cham, CH;
Inventors:
Johan Olsson, Bromma, SE;
Hotan Mojarradi, Uppsala, SE;
Assignee:
GALDERMA HOLDING SA, La Tour-de-Peilz, CH;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J 3/075 (2006.01); C08B 37/00 (2006.01); C08B 37/08 (2006.01); C08L 5/00 (2006.01); C08J 3/24 (2006.01); C08L 5/08 (2006.01); C07C 209/62 (2006.01); C07C 213/00 (2006.01); C07C 269/06 (2006.01); C07F 7/08 (2006.01); C08J 7/14 (2006.01); C08K 5/09 (2006.01); A61K 8/04 (2006.01); A61K 8/73 (2006.01); A61Q 19/00 (2006.01); A61K 9/00 (2006.01);
U.S. Cl.
CPC ...
C08J 3/075 (2013.01); A61K 8/042 (2013.01); A61K 8/73 (2013.01); A61K 8/735 (2013.01); A61K 9/0019 (2013.01); A61Q 19/00 (2013.01); C07C 209/62 (2013.01); C07C 213/00 (2013.01); C07C 269/06 (2013.01); C07F 7/083 (2013.01); C08B 37/0063 (2013.01); C08B 37/0069 (2013.01); C08B 37/0072 (2013.01); C08J 3/24 (2013.01); C08J 7/14 (2013.01); C08K 5/09 (2013.01); C08L 5/00 (2013.01); C08L 5/08 (2013.01); C07C 2603/18 (2017.05); C08J 2305/00 (2013.01); C08J 2305/08 (2013.01);
Abstract
A method of preparing a hydrogel product comprising crosslinked glycosaminoglycan molecules, said method including: i) providing a glycosaminoglycan crosslinked by amide bonds, wherein the crosslinked glycosaminoglycans include ester crosslinks formed as byproducts during the amide crosslinking; and ii) subjecting the crosslinked glycosaminoglycans to alkaline treatment to hydrolyze ester crosslinks formed as byproducts during the amide crosslinking.