09.03.18
US Patent No. 10,028,895 B2; L’Oréal, Paris, has patented a method for preparing an emulsion, that comprises preparing an O/W dispersion comprising at least one cationic surface active adsorbed to the oil-water interface such that oil droplets have a cationic surface; preparing a solution comprising at least one dissolved silicate salt; adjusting the pH of the solution with the one dissolved silicate salt to a range of 6.0 to about 9.0 to create anionic complexes; mixing the O/W dispersion and the solution such that the anionic complexes are attracted to the cationic surface of the oil droplets, resulting in encapsulated oil droplets.