Cross-linked esters of hyaluronic acid
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1. 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
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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.
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- 1. 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
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