Process for the preparation of multi-cross-linked derivatives of hyaluronic acid (ha), multi-cross-linked ha, cross-linked ha in one or more polymers other than ha, cross-linked in a second polymer, product, and use of a multi-cross-linked ha derivative

摘要

"PROCESS FOR THE PREPARATION OF MULTIPLAMENTLY cross-linked DERIVATIVES FROM HYALURINIC ACID (HA), HA MULTIPLAMENTLY cross-linked, HA cross-linked in one or more different polymers different from HA, HA cross-linked in a second polymer, product, and use of a different product. ". The present invention provides a product for the production of cross-linked hyaluronic acid derivatives with another polymer, especially double-cross-linked derivatives of hyaluronic acid. The invention also provides new cross-linked derivatives, products containing them and their uses in cosmetic, medical and pharmaceutical applications.