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US 10,471,417 B2Granted
Titanium oxide particle and method for producing the same
AssigneeFuji Xerox Co., Ltd.
InventorsHidekazu Hirose, Hideaki Yoshikawa, Hiroyoshi Okuno, Takeshi Iwanaga, Yasunobu Kashima, Wataru Yamada, Sakae Takeuchi, Atsushi Sugitate
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Abstract
A titanium oxide particle surface-treated with a silane compound having a hydrocarbon group has absorption at a wavelength of about 400 nm or more and about 800 nm or less in an ultraviolet-visible absorption spectrum, and has an absorption peak at a wave number of about 2700 cm−1 or more and about 3000 cm−1 or less in an infrared absorption spectrum.
Claims19
A titanium oxide particle surface-treated with a silane compound having a hydrocarbon group, wherein:
- an amount of the silane compound with respect to the untreated titanium oxide particle is from 10 mass % to 35 mass %,
- a carbonization product of the hydrocarbon group, which is formed by heating the titanium oxide particle at 180° C. or higher and 500° C. or lower while or after surface treatment, is present inside pores of the titanium oxide particle,
- the titanium oxide particle has absorption at a wavelength of 400 nm or more and 800 nm or less in an ultraviolet-visible absorption spectrum, and
- the titanium oxide particle has an absorption peak at a wave number of 2700 cm−1 or more and 3000 cm−1 or less in an infrared absorption spectrum.
1 more element
Dependencies are inferred from the claim text.