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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 9440221 B1

PDFFull Text
Date of Patent:
Sep. 13, 2016

Filed:

Mar. 06, 2014

Titanium oxide dispersion liquid, titanium oxide coating liquid, and photocatalyst coating film

Applicant:

Daicel Corporation, Osaka-shi, Osaka, JP;

Inventors:

Ryouta Kojima, Himeji, JP;

Naoyuki Fukui, Himeji, JP;

Hitoshi Watanabe, Himeji, JP;

Assignee:

DAICEL CORPORATION, Osaka-Shi, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Melvin C Mayes

Assistant Examiner:

Stefanie Cohen

Int. Cl.
CPC ...
B01J 21/00 (2006.01); B01J 21/06 (2006.01); B01J 23/745 (2006.01); C09D 5/16 (2006.01); C09D 7/12 (2006.01); C09D 201/00 (2006.01); C08F 220/06 (2006.01); B01D 53/86 (2006.01); B01J 37/02 (2006.01); B01J 35/00 (2006.01); B01J 31/06 (2006.01); B01J 31/26 (2006.01); B01J 35/10 (2006.01);
U.S. Cl.
CPC ...
B01J 21/063 (2013.01); B01D 53/8668 (2013.01); B01J 23/745 (2013.01); B01J 31/06 (2013.01); B01J 31/26 (2013.01); B01J 35/004 (2013.01); B01J 37/0203 (2013.01); B01J 37/0219 (2013.01); C08F 220/06 (2013.01); C09D 5/16 (2013.01); C09D 5/1606 (2013.01); C09D 7/12 (2013.01); C09D 7/1208 (2013.01); C09D 201/00 (2013.01); B01D 2255/20707 (2013.01); B01D 2255/20738 (2013.01); B01D 2255/802 (2013.01); B01D 2257/306 (2013.01); B01D 2257/708 (2013.01); B01D 2257/90 (2013.01); B01D 2257/91 (2013.01); B01D 2258/06 (2013.01); B01D 2259/4508 (2013.01); B01D 2259/4591 (2013.01); B01D 2259/804 (2013.01); B01J 35/1014 (2013.01);
Abstract

Provided is a titanium oxide dispersion liquid that has dispersibility and dispersion stability both at superior levels and, when applied and dried, can form a photocatalyst coating film capable of rapidly developing excellent photocatalytic activity. The titanium oxide dispersion liquid according to the present invention includes titanium oxide particles (A), a dispersing agent (B), and a solvent (C). The titanium oxide particles (A) support a transition metal compound. The dispersing agent (B) includes a poly(acrylic acid) or a salt thereof. The poly(acrylic acid) or a salt thereof in the dispersing agent (B) preferably includes a poly(acrylic acid) alkali metal salt. The poly(acrylic acid) or a salt thereof in the dispersing agent (B) preferably has a weight-average molecular weight of from 1000 to 100000.

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