| 摘要 |
Titanium oxide particles which have a primary particle diameter of 0.5 to 2.0 mum and a reflectance for visible lights of less than 95 %, and comprise 0.05 to 0.4 weight % of aluminum oxide, 0.1 to 0.8 wt % of zinc oxide, and the residual amount of titanium oxide; and a method for producing the titanium oxide particles which comprises incorporating small proportions of an aluminum compound, a zinc compound and a potassium compound to hydrated titanium oxide and roasting the resulting mixture. The titanium particles can shield infrared rays selectively, and exhibit high slidablity.
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