Patent ID: 8551916

Claim:
A method for producing an O/W emulsion comprising: after preliminarily dispersing a to-be-emulsified material and an interfacially active organic compound comprising a self-assembled product thereof in water, heating the preliminary dispersion to a temperature equal to or higher than a melting point of the to-be-emulsified material and equal to or higher than a phase transition temperature of the self-assembled product of the interfacially active organic compound in the absence of an organic solvent; and performing emulsification under a pressure; wherein the self-assembled product of the interfacially active organic compound comprises an organic nanotube, and wherein the interfacially active organic compound is one or more members selected from the group consisting of 1-glucosamide-oleic acid, glycylglycine-lauric acid, glycylglycine-myristic acid, 2-glucosamide-lauric acid, 2-glucosamide-myristic acid, 2-glucosamide-oleic acid, and 2-glucosamide-stearic acid.