Patent 7879345 was granted and assigned to L'Oreal Alumni Official Association on February, 2011 by the United States Patent and Trademark Office.
The invention relates to a composition preferably useful for topical application in the form of an oil-in-water emulsion comprising, in a physiologically acceptable medium, an oily phase dispersed in an aqueous phase, containing at least one lipophilic emulsifier and at least one water-soluble or water-dispersible amphiphilic polymer, which may be obtained from 2-acrylamido-2-methylpropanesulphonic acid units and from hydrophobic monomers comprising an oxyalkylene chain.