Patent ID: 6559233
Filing Date: 2003-05-06
Classification: C08L

Abstract:
An aqueous composition comprising:at least one block copolymer (A) comprising, at least two anionic blocks or at least two cationic blocks, and at least one non-ionic block, and at least one compound (B) selected from the group consisting of ions having at least two charges, surfactants carrying at least one charge, oligomers or polymers having at least two charges, and mineral particles having at least two charges, said compound being: either cationic, as a net charge, if block copolymer (A) comprises anionic blocks, or anionic, as a net charge, if block copolymer (A) comprises cationic blocks; the amount of block copolymer (A) being such that the viscosity of the composition is at least greater than three times, that of an aqueous solution comprising block copolymer (A) and that of an aqueous solution comprising compound (B), in the same temperature and concentration conditions.