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AssigneeIshihara Sangyo Kaisha, Ltd.
InventorsTadahiko TAKIMOTO, Kouji GOTO, Hiroki WASHIZU
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The present invention addresses the problem of providing: a dispersion of titanium dioxide fine particles in an organic solvent, the dispersion having high dispersion stability; and a method for producing the same. The present invention provides a dispersion of titanium dioxide fine particles in an organic solvent, the dispersion containing: titanium dioxide fine particles in each of which a titanium component, a tin component, and an aluminum component are detected by X-ray fluorescence analysis measurement, and an X-ray diffraction peak derived from rutile titanium dioxide is observed but X-ray diffraction peaks derived from the tin component and the aluminum component are not observed by powder X-ray diffraction measurement; an organic solvent; a silane coupling agent; and a dispersant that has a basic adsorption group.
An organic solvent dispersion of titanium dioxide fine particles comprising:
A method for producing an organic solvent dispersion of titanium dioxide fine particles, the method comprising the step of dispersing, in an organic solvent, the following:
The method for producing an organic solvent dispersion of titanium dioxide fine particles according to claim 16, wherein the Step (1) is a step of hydrolyzing a mixture of titanium (oxy)chloride, a tin compound, and a carboxylic acid or a salt thereof, or a step of adding titanium (oxy)chloride, and a carboxylic acid or a salt thereof in the presence of core particles obtained by hydrolyzing a tin compound, and hydrolyzing the titanium (oxy)chloride.
Dependencies are inferred from the claim text.