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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.

Patent No.:

US 9833776 B1

PDFFull Text
Date of Patent:
Dec. 05, 2017

Filed:

Sep. 29, 2014

Dispersion liquid of titanium oxide-tungsten oxide composite photocatalytic fine particles, production method for same, and member having photocatalytic thin film on surface thereof

Applicant:

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

Inventors:

Manabu Furudate, Kamisu, JP;

Tomohiro Inoue, Kamisu, JP;

Yoshitsugu Eguchi, Kamisu, JP;

Takashi Kobayashi, Kamisu, JP;

Assignee:

SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Melvin C Mayes

Assistant Examiner:

Stefanie Cohen

Int. Cl.
CPC ...
B01J 23/888 (2006.01); C01G 41/02 (2006.01); C09D 1/00 (2006.01); C09D 5/16 (2006.01); C01G 23/053 (2006.01); C09D 7/12 (2006.01); B01J 21/06 (2006.01); B01J 23/72 (2006.01); B01J 35/00 (2006.01); B01J 35/02 (2006.01); B01J 37/00 (2006.01); B01J 37/04 (2006.01); B01J 37/08 (2006.01);
U.S. Cl.
CPC ...
B01J 23/888 (2013.01); B01J 21/063 (2013.01); B01J 23/72 (2013.01); B01J 35/002 (2013.01); B01J 35/004 (2013.01); B01J 35/023 (2013.01); B01J 37/0036 (2013.01); B01J 37/04 (2013.01); B01J 37/08 (2013.01); C01G 23/053 (2013.01); C01G 41/02 (2013.01); C09D 1/00 (2013.01); C09D 5/16 (2013.01); C09D 7/1258 (2013.01); C01P 2002/50 (2013.01); C01P 2002/54 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01);
Abstract

The present invention relates to a dispersion liquid of titanium oxide-tungsten oxide composite photocatalytic fine particles that is characterized by having two types of photocatalytic fine particles dispersed in an aqueous dispersion medium, the fine particles including i) fine particles of titanium oxide that contain a peroxotitanium component and a copper component and ii) fine particles of tungsten oxide. The present invention can provide a dispersion liquid and the like that can be used to conveniently manufacture a photocatalytic thin film that demonstrates photocatalytic activity even within visible light (400-800 nm) only, exhibits high antibacterial performance, is highly durable, and wherein the state of copper coordination is stable against exposure to heat and ultraviolet rays and is not easily modified. The dispersion liquid is a dispersion liquid of titanium oxide-tungsten oxide composite photocatalytic fine particles that contains copper-containing titanium oxide fine particles.

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