| 摘要 |
A cosmetic preparation which comprises titanium oxide or zinc oxide each coated with silica or alumina or both and a thickening polymer having carboxyl groups in side chains, especially a carboxyvinyl polymer, and in which the titanium oxide or zinc oxide coated with silica and/or alumina and the carboxyvinyl polymer satisfy the following: when the coated oxide is dispersed into a 0.133 wt.% aqueous solution of the polymer in a concentration of 10 wt.%, the viscosity of this dispersion as measured 100 hours after the preparation is at least 50% of the initial viscosity. The cosmetic preparation, which comprises titanium oxide or zinc oxide each coated with silica or alumina or both and a thickening polymer, can retain over long the emulsion stability due to thickening by the polymer. It is widely usable as, e.g., an ultraviolet-protective cosmetic preparation having stability. |
