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US09034375B2 Water-in-oil emulsion composition 有权
油包水乳液组合物

Water-in-oil emulsion composition
Abstract:
A water-in-oil emulsion composition which contains a low water-solubility but oil-soluble ultraviolet absorber, and which exhibits excellent ultraviolet light protection and stability. The composition contains (a) an aqueous dispersion of an oil-soluble ultraviolet absorber; (b) a polyoxyalkylene-modified polysiloxane having a molecular mass of at least 2000; and (c) at most 5 mass % of an ultraviolet scattering agent; and component (a) being contained in the internal phase. Component (a) is preferably an aqueous dispersion of a complex particle of an oil-soluble ultraviolet absorber and an organic polymer.
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