Patent ID: 6375960
Filing Date: 2002-04-23
Classification: A61K,A61P,A61Q,B01F,B82Y,Y10S

Abstract:
A nanoemulsion, comprising:an oily phase dispersed in an aqueous phase; and at least one surfactant that is solid at a temperature of less than or equal to 45Â° C. and which is selected from the group consisting of (a), (b), and (c): (a) at least one ether formed from 1 to 100 ethylene oxide units and at least one fatty alcohol chain having from 16 to 22 carbon atoms, and (b) at least one ester formed from 1 to 100 ethylene oxide units and at least one fatty acid chain having from 16 to 22 carbon atoms, and (c) mixtures thereof; wherein said oily phase comprises oil globules having a number-average size of from 20 to less than 100 nm; wherein said oily phase comprises at least one oil having a molecular weight of greater than 400; and wherein a weight ratio of said oily phase to said surfactant ranges from 2 to 10; and wherein said oily phase is present in an amount of 10-40% by weight, based on the total weight of said nanoemulsion.