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:
Jan. 09, 2024
Filed:
Feb. 03, 2021
Applicant:
Galderma Holding SA, La Tour-de-Peilz, CH;
Inventor:
Morgan Karlsson, Almunge, SE;
Assignee:
Galderma Holding SA, Zug, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/24 (2006.01); C08B 37/08 (2006.01); C08L 5/08 (2006.01); A61K 8/73 (2006.01); A61K 31/728 (2006.01); A61K 47/36 (2006.01); A61K 9/06 (2006.01); A61Q 19/08 (2006.01); A61L 27/20 (2006.01); C08J 3/075 (2006.01);
U.S. Cl.
CPC ...
C08J 3/24 (2013.01); A61K 8/735 (2013.01); A61K 9/06 (2013.01); A61K 31/728 (2013.01); A61K 47/36 (2013.01); A61L 27/20 (2013.01); A61Q 19/08 (2013.01); C08B 37/0072 (2013.01); C08J 3/075 (2013.01); C08L 5/08 (2013.01); A61K 2800/91 (2013.01); A61L 2430/34 (2013.01); C08J 2305/08 (2013.01); C08L 2201/54 (2013.01); C08L 2203/02 (2013.01);
Abstract
A process for manufacturing a cross-linked hyaluronic acid (HA) gel product is comprising the steps of: (a) preparing an aqueous mixture of HA and a cross-linking agent selected from multiepoxides and diepoxides; wherein the HA is dissolved in an aqueous solution containing 1-10% (w/w) inorganic hydroxide; and wherein the dissolved HA constitutes more than 10% (w/w) of the final mixture; and (b) subjecting the aqueous mixture to cross-linking conditions to allow the dissolved HA to react with the cross-linking agent so as to obtain a cross-linked HA gel product.