Invention Application
US20130022563A1 WATER-IN-OIL EMULSION COMPOSITION 有权
油脂乳化组合物

  • Patent Title: WATER-IN-OIL EMULSION COMPOSITION
  • Patent Title (中): 油脂乳化组合物
  • Application No.: US13639520
    Application Date: 2011-04-11
  • Publication No.: US20130022563A1
    Publication Date: 2013-01-24
  • Inventor: Yuko NagareKazuhiro Yamaguchi
  • Applicant: Yuko NagareKazuhiro Yamaguchi
  • Priority: JP2010-092261 20100413; JP2011-086012 20110408
  • International Application: PCT/JP2011/058979 WO 20110411
  • Main IPC: A61K8/894
  • IPC: A61K8/894 A61Q17/04
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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