Cross-linked esters of hyaluronic acid
AssigneeFidia S.p.A.
InventorsFrancesco della Valle, Aurelio Romeo
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Abstract
Cross-linked esters of hyaluronic acid are provided which result from the esterification of polyhydric alcohols with two or more carboxy groups of the hyaluronic acid polysaccharide. These cross-linked esters are useful in the field of biodegradable plastics for sanitary and surgical articles and in the pharmaceutical and cosmetic fields for the preparation of useful compositions and articles.
Claims91
Total or partial cross-linked esters of hyaluronic acid with an aliphatic polyhydric alcohol, and salts of such partial esters with inorganic or organic bases, with the proviso that said cross-linked ester is not the cross-linked ester of hyaluronic acid with an alomethyloxirane or a bisepoxy compound
Dependencies are inferred from the claim text.