The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 31, 2017

Filed:

Oct. 10, 2012
Applicant:

Shin-etsu Chemical Co., Ltd., Tokyo, JP;

Inventors:

Manabu Furudate, Kamisu, JP;

Tomohiro Inoue, Kamisu, JP;

Yoshitsugu Eguchi, Kamisu, JP;

Tadashi Amano, Kamisu, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 23/847 (2006.01); B01J 37/02 (2006.01); B01J 35/00 (2006.01); B01J 21/06 (2006.01);
U.S. Cl.
CPC ...
B01J 23/8472 (2013.01); B01J 35/004 (2013.01); B01J 35/0013 (2013.01); B01J 37/0205 (2013.01); B01J 37/0215 (2013.01); B01J 21/063 (2013.01);
Abstract

Provided is a visible-light-responsive titanium oxide microparticle dispersion or the like readily enabling manufacture of a highly transparent photocatalyst thin film demonstrating photocatalyst activity even using visible light alone, and having exceptional titanium oxide microparticle dispersion stability even after storage for prolonged periods of time in cold and dark interior locations. The present invention makes it possible to: produce a peroxotitanic acid solution containing vanadium and a tin compound from a titanium compound, a vanadium compound, a tin compound, a basic substance, hydrogen peroxide, and an aqueous dispersion medium as starting materials; subject the peroxotitanic acid solution to a hydrothermal reaction under high pressure; subsequently admix a copper compound into the acid solution; and obtain a visible-light-responsive titanium oxide microparticle dispersion or the like.


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