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)] | 20 Claims |
1. A process of preparing a hydrogel product comprising crosslinked hyaluronic acid (HA) molecules, the process comprising:
hydrolyzing via alkaline hydrolysis ester bonds in HA molecules crosslinked by diaminotrehalose (DATH) via activated carboxyl groups, to obtain a hydrogel product having less than 50% non-crosslinked HA molecules by weight of the hydrogel product.
|