Patent ID: 7511002
Filing Date: 2009-03-31
Classification: A61K,A61Q,B01F

Abstract:
1. A process for producing an oil-in-water emulsion, said process comprising the steps of: mixing: (a) a polymer compound having, in a side chain, a group represented by formula (1) wherein X represents a C1 to C6 linear or branched divalent saturated hydrocarbon group, n is a number of 5 to 300, Xs whose number is n may be the same as or different from one another, E (b) a water-soluble polyol, (c) a nonionic surfactant, (d) a hydrophobic compound, and water; and then diluting the resulting mixture with water, so that the average emulsion particle diameter of the emulsion in the oil-in-water emulsion is 0.1 to 2 μm.