Patent ID: 7063834

Claim:
A composition comprising at least one solution or at least one organic solvent-in-water emulsion, wherein: the at least one solution or at least one organic solvent-in-water emulsion comprises at least one multiblock polycondensate dissolved in at least one solvent system chosen from an aqueous solvent system, an organic solvent system, and an aqueous-organic solvent system, wherein the organic solvent system comprises at least one organic solvent chosen from acetone, methyl ethyl ketone, methyl acetate, butyl acetate, ethyl acetate, isopropanol, ethanol, dimethoxyethane, diethoxyethane, ethylene glycol ester, propylene glycol ester, ethylene glycol ether, propylene glycol ether, ethylene glycol ester ether, and propylene glycol ester ether, wherein a chain of the at least one multiblock polycondensate comprises the repetition of at least one polysiloxane block and at least one second block; wherein the at least one second block is chosen from polyurethane and polyurea blocks; wherein the at least one second block comprises at least one ionizable group; wherein the at least one polysiloxane block is of the formula (I) below: wherein: P is a polysiloxane segment, X 1 , which may be identical or different, is chosen from —O— and —NH—, and R is a divalent radical wherein the divalent radical is chosen from aromatic, aliphatic and cycloaliphatic radicals; and the at least one second block is of the formula (II) below: wherein: X 2 , which may be identical or different, is chosen from —O— and —NH—, R is a divalent radical wherein the divalent radical is chosen from aromatic, aliphatic and cycloaliphatic radicals, x is an integer ranging from 1 to 10, and B is a radical chosen: from radicals of formula (IV) below: wherein R 3 is chosen from linear and branched C 1 –C 4 alkyl radicals, and r and s, which may be identical or different, are both integers which range from ito 10, and from, when B is in neutralized or quaternized form, radicals of formula (IV′) below: wherein R 3 is chosen from linear and branched C 1 –C 4 alkyl radicals, and R 4 is chosen from hydrogen, linear and branched C 1 –C 10 alkyl radicals, and aromatic rings, and r and s, which may be identical or different, are both integers which range from 1 to 10, and wherein the composition is a cosmetic or dermatological composition.