| 发明名称 | Water-in-oil type emulsion sunscreen cosmetics | ||
| 摘要 | The present invention provides water-in-oil type emulsion sunscreen cosmetics that achieve an excellent UV blocking effect, and have excellent effects in the prevention and inhibition of discoloration (discoloration to red). The water-in-oil emulsion sunscreen cosmetic according to the present invention is characterized by comprising: (a) octocrylene; (b) hydrophobized zinc oxide; (c) cationic surfactant; and (d) silica. | ||
| 申请公布号 | US9084724(B2) | 申请公布日期 | 2015.07.21 |
| 申请号 | US201414195647 | 申请日期 | 2014.03.03 |
| 申请人 | SHISEIDO CO., LTD. | 发明人 | Shirao Masayuki;Yamaguchi Kazuhiro;Matsui Takashi;Yoshikawa Norinobu;Nomura Yuki |
| 分类号 | A61K8/27;A61Q17/04;A61K8/02;A61K8/06;A61K8/25;A61K8/40;A61K8/41;A61K8/58;A61K8/73 | 主分类号 | A61K8/27 |
| 代理机构 | Rankin, Hill & Clark LLP | 代理人 | Rankin, Hill & Clark LLP |
| 主权项 | 1. A method of making a water-in-oil type emulsion sunscreen cosmetic comprising: mixing (a) octocrylene, (b) hydrophobized zinc oxide having a coating of (c) cationic surfactant on a surface of the hydrophobized zinc oxide, and (d) silica powder consisting of silicic anhydride to make an oil phase; and adding a water phase to the oil phase to make the water-in-oil type emulsion sunscreen cosmetic, wherein an amount of the (c) cationic surfactant is 0.5 to 10% by mass with respect to the (b) hydrophobized zinc oxide, and an amount of the (d) silica powder is 0.1 to 20% by mass with respect to the cosmetic. | ||
| 地址 | Tokyo JP | ||