A POLYSACCHARIDE HYDROGEL MATERIAL, A PROCESS FOR ITS PREPARATION AND ITS USE IN MEDICINE, SURGERY, COSMETICS AND FOR THE PREPARATION OF HEALTH CARE PRODUCTS

摘要

A polysaccharide hydrogel material consisting of a crosslinked product of a functionalized derivative of alginic acid or hyaluronic acid, whose carboxylic groups are partially esterified with an unsaturated aliphatic or an araliphatic alcohol, and the remaining carboxylic groups are partially salified with an alkaline, alkaline earth metal cation or with tetralkylammonium. This hydrogel material, which is prepared by treatment with radiations selected from UV, β and gamma radiations is advantageously used in medicine, surgery, cosmetics and for the preparation of health care products.