Patent ID: 6933340
Filing Date: 2005-08-23
Classification: A61K,A61Q,C08F,C08L

Abstract:
1. A formulation comprising: a polymer (a), polyionic in the pH conditions of the formulation, being polycationic or polyanionic, a compound (b), ionic in the pH conditions of the formulation, a copolymer (c), comprising at least two moieties A and B, wherein: moiety A is a polyionic moiety in the pH conditions of the formulation, being polycationic if compound (b) is anionic, and polyanionic if compound (b) is cationic, moiety B is a neutral moiety in the pH conditions of the formulation, and at least one moiety selected from the group consisting of moiety A and moiety B comprises units deriving from mono-alpha-ethylenically-unsaturated monomers, and water, wherein B is a hydrophilic water-soluble block.