Derivatives of hyaluronic acid, their preparation process and their uses

US8039447B2 · kind B2 · utility

Assignees

• CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR
• AGRO INDUSTRIES RECHERCHE ET DEVELOPPEMENT · FR

Inventors

• Marguerite Rinaudo · Grenoble, FR
• Rachel Auzely · Le Pont-de-Claix, FR
• Shirin Kadi · Grenoble, FR
• Anthony Bresin · Reims, FR
• Erell Kubik · Sorbon, FR

Key dates

• Filing date: Nov 16, 2006
• Grant date: Oct 18, 2011
• Expiry date: Jul 25, 2028

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P19/02
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

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, Ri 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 Ri group represents a group of formula (III), for the preparation of a viscoelastic composition.