Cosmetics
AssigneeMiyoshi Kasei, Inc.
InventorMasaakira Horino
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Abstract
A surface of particles of a silicone resin is treated with a low-molecular organosilicon derivative, with or without a water-soluble cationic polymer to improve the hydrophilicity of the silicone resin. The thus-treated powder is quite excellent in dispersibility (readily dispersible) and in dispersion stability in an aqueous dispersion medium. The use of the surface-treated powder provides a dispersion for cosmetic, excellent in dispersibility and dispersion stability and the like. The use of the surface-treated powder, or the use of the dispersion provides further a cosmetic excellent in dispersibility and dispersion stability, and further excellent in ease of re-dispersion and dispersion stability with lapse of time when selecting aqueous cosmetic as an agent form, and also excellent in smooth feeling in comparison with ordinary products.
Claims9
A powder for a cosmetic comprising surface-treated silicone resin particles which are hydrophilic wherein said silicone resin particles are polymethylsilsesquioxane,
- wherein the surface treatment is a coating with at least one of dimethylsilanediol hyaluronate, monomethylsilanetriol lactate, methylsilanol-tri-PEG-8-glyceryl cocoate, monomethylsilanetriol mannuronate and elastin peptide silane and a water-soluble cationic polymer.
Dependencies are inferred from the claim text.