| 摘要 |
A particulate metal oxide which has an evenly fluorinated surface and has higher durability with respect to properties such as water repellency, dispersibility, and light stability; a process for producing the same; and a thermoplastic resin composition containing as a pigment the particulate titanium oxide. The process, by which the particulate metal oxide can be produced extremely simply, comprises fluorinating the surface of a particulate oxide of a metal such as Ti, Al, Si, Ag, Cu, Fe, Zr, Ce, Mn, Sn, Ge, or Ta while keeping the metal oxide in a fluidized state.
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