| 发明名称 |
PHOTOCHROMIC ULTRA-VIOLET RAY SHIELD POWDER, METHOD OF MANUFACTURING THE SAME, AND SKIN EXTERNAL PREPARATION USING THE SAME |
| 摘要 |
A photochromic ultra-violet ray shield material principally composed of titanium oxide particles, which have a specific surface area of 25 m2/g or above and also have 4E=5 .ltoreq. A (discoloration degrees) and B (at restoration) .ltoreq. .DELTA.E=3, a method of manufacturing the same and a skin external preparation using the same. Both photochromic property and excellent ultra-violet ray shield effect are obtained.
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| 申请公布号 |
CA2070749(C) |
申请公布日期 |
2002.03.26 |
| 申请号 |
CA19922070749 |
申请日期 |
1992.06.09 |
| 申请人 |
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发明人 |
SAITO, TSUTOMU;SUZUKI, FUKUJI;OHNO, KAZUHISA;SAKURAI, OSAMU |
| 分类号 |
A61K8/19;A61K8/00;A61K8/26;A61K8/27;A61K8/29;A61Q1/00;A61Q1/12;A61Q17/04;C09C1/00;C09C1/36;C09K3/00;C09K9/00;(IPC1-7):A61K7/42 |
主分类号 |
A61K8/19 |
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