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.:
Date of Patent:
Sep. 22, 2015
Filed:
Aug. 26, 2010
Shinichiro Miki, Osaka, JP;
Koichi Takahama, Hyogo, JP;
Kensaku Kinugawa, Nara, JP;
Kazuhito Hashimoto, Tokyo, JP;
Kayano Sunada, Tokyo, JP;
Shinichiro Miki, Osaka, JP;
Koichi Takahama, Hyogo, JP;
Kensaku Kinugawa, Nara, JP;
Kazuhito Hashimoto, Tokyo, JP;
Kayano Sunada, Tokyo, JP;
PANASONIC CORPORATION, Osaka, JP;
THE UNIVERSITY OF TOKYO, Tokyo, JP;
Abstract
Object of the present invention is to provide visible light-responsive photocatalyst coating material which can form a coating film exhibiting superior allergen inactivation property through irradiation of visible light. The visible light-responsive photocatalyst coating material comprises: photocatalyst material having visible light-activity composed of metal oxide particle with divalent copper salt supported on the surface thereof, said metal oxide particle having optical semiconductor-characteristics and potential of valence band of said metal oxide particle being 3[V] or more (vs. SHE, pH=0); binder component including component having siloxane bond or component forming siloxane bond through reaction; and chloride ionic compound. When visible light is irradiated to the coating film, the metal oxide particle exhibits photocatalyst activity in the presence of the copper-divalent ion and chloride ion, thereby significantly high allergen inactivation property is exhibited. Additionally, it can prevent the separation of the photocatalyst coating material from the coating film.