| 摘要 |
PROBLEM TO BE SOLVED: To provide a UV filter having a little or no photocatalytic activity and exhibiting absorption in the range of UV-B and UV-A. SOLUTION: Provided is a composite particle having a BET surface area of 5-100 m<SP>2</SP>/g. The particle comprises a zinc oxide matrix and a cerium oxide domain which exists inside and on the matrix. The amount of zinc oxide is 80-98 mass% and the amount of cerium oxide is 2-20 mass% relative to the composite particle. COPYRIGHT: (C)2007,JPO&INPIT
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