Cosmetic or pharmaceutical composition comprising a condensation polymer, cosmetic treatment method employing said composition, said condensation polymer and preparation method

• Main Authors: GIUSTINIANI, PASCAL, RODRIGUEZ, IVAN, ILEKTI, PHILIPPE, MALLE, GERARD, RAMIN, ROLAND
• Format: Patent
• Language: English; French; German
• Published: 19.05.2010
• Subjects: HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS

Cosmetic/pharamceutical composition comprises a polycondensate made of (in wt.%): a polyol (15-30) having 3-6 hydroxyl groups; a 6-32 carbon non-aromatic monocarboxylic acid (5-40); a 7-11 carbon aromatic monocarboxylic acid (10-55) (optionally substituted by 1-3 alkyl groups of 1-32C); and a polycarboxylic acid having two carboxyl groups and/or polycarboxylic acid anhydride (10-25), in a medium. An independent claim is included for a process of preparing the polycondensate comprising mixing polyol, (non)aromatic monocarboxylic acids, heating the mixture at 100-130[deg]C, preferably 150-220[deg]C until complete consumption of the acids, optionally cooling the mixture at 90-150[deg]C, adding the polycarboxylic acid and/or the cyclic anhydride acids, and optionally a silicone with hydroxyl or carboxyl groups, and heating at =220[deg]C.