NEW DERIVATIVES OF HYALURONIC ACID, THEIR PREPARATION PROCESS AND THEIR USES

摘要

The present invention relates to the use of a compound having the formula (I) wherein: n represents an integer varying from 720 to 6 200, and i varies from 1 to n, R_i represents in particular OH, or a group of the formula (III) wherein k represents an integer varying from 1 to 17, and R'_i represents a linear or branched alkyl chain comprising p carbon atoms, wherein p is an integer varying from 1 to 17, with the proviso that k+p is not greater than 28, and preferably not greater than 20, and wherein at least one R_i group represents a group of formula (III), for the preparation of a viscoelastic composition.