Patent 7495031 was granted and assigned to Kao Corporation on February, 2009 by the United States Patent and Trademark Office.
A process for producing an emulsion, including adding a mixture (1) comprising a water-soluble inorganic salt (a) and/or an aqueous solution containing (a) to a mixture (2) containing a surfactant (b), a surfactant-emulsifying agent (c) for emulsifying the surfactant (b), and a hydrophilic powder (d), and mixing mixtures (1) and (2) to emulsify the surfactant (b), wherein water-soluble inorganic salt (a) may be a carbonate, surfactant (b) may be an anionic surfactant and/or a nonionic surfactant, surfactant-emulsifying agent (c) may be a water-soluble polymer, and hydrophilic powder (d) may be an inorganic chelating agent.