Ishihara Sangyo Kaisha, Ltd.

Independent Administrative Institution National Institute for Materials Science

Yusuke Uesusuki

Takayoshi Sasaki

Yasuo Ebina

Hirofumi Taniguchi

Provided is a flaky titanate that exhibits a high weathering resistance while at the same time having the ability to endow a coating film with a silky feeling having a shading feeling and a strong luster feeling, and a method for the production thereof suitable at least for inexpensive industrial production. The flaky titanate contains a basic organic compound wherein the content of basic functional groups thereof is not more than 2.4%, and provides a coating film having a goniospectrophotometric color measured value &#x394;L* of at least 150. The method for producing a flaky titanate contains a step of classifying a flaking titanate having a basic organic compound at the surface and/or in interlayer position, to bring (D90&#x2212;D10)/D50 in the volume particle size distribution to 1.5 or less.

Flaky titanate and method for production thereof, and use thereof

Disclosed is an organic dispersion comprising a flaky titanium oxide particle having a high crystallinity and high light permeability contained in an organic solvent. The dispersion can be prepared by a method comprising preparing an aqueous dispersion of a flaky titanium oxide particle containing an organic cation, centrifuging the aqueous dispersion to produce a precipitate, and adding the precipitate to an organic solvent, or a method comprising lyophilizing the aqueous dispersion to produce a lyophilized material and mixing the lyophilized material to an organic solvent. When the organic dispersion is used, it becomes possible to form a film comprising a monolayer of a titanium oxide nanosheet densely arranged therein by such a simple manner that the dispersion is coated on a base material and drying the dispersion. The film thus produced has a photocatalytic activity and a super-hydrophilic property.

Organic solvent dispersion containing flaky titanium oxide, method for production of the dispersion, titanium oxide film using the dispersion, and method for production of the titanium oxide film

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Yokkaichi, Japan

Yusuke Uesusuki