Patent ID: 7462363
Filing Date: 2008-12-09
Classification: A61K,A61P,A61Q,C08F

Abstract:
1. A composition comprising: an oil phase; an aqueous phase; at least one water-in-oil (W/O) emulsifying system; optionally at least one oil-in-water (O/W) emulsifying system; and from 20% to 70% by mass of a branched or crosslinked polyelectrolyte, wherein, the polyelectrolyte is a copolymer of 2-acrylamido-2-methylpropanesulfonic acid partially or totally salified with N,N-dimethylacrylamide and optionally one or more monomers chosen from monomers containing a partially or totally salified weak acid function and/or from neutral monomers other than N,N-dimethylacrylamide, the polyelectrolyte comprises between 95 mol % and 25 mol % of partially or totally salified 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid monomer and between 5 mol % and 75 mol % of N,N-dimethylacrylamide monomer, and said composition is an inverse latex.