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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 11850316 B1

PDFFull Text
Date of Patent:
Dec. 26, 2023

Filed:

Jun. 19, 2021

Self-disinfecting photocatalyst sheet with primer

Applicant:

Aleddra Inc., Renton, WA (US);

Inventors:

Chia-Yiu Maa, Bellevue, WA (US);

Li-Jyuan Luo, Taipei, TW;

Chun-Te Yu, Bellevue, WA (US);

Assignee:

Aleddra Inc., Renton, WA (US);

Attorneys:

Han IP PLLC

Andy M. Han

Primary Examiner:

Frank D Ducheneaux

Int. Cl.
CPC ...
A61L 2/00 (2006.01); B01J 35/02 (2006.01); B01J 21/10 (2006.01); C09J 7/22 (2018.01); C09J 7/29 (2018.01); C08K 3/08 (2006.01); A61L 2/08 (2006.01); B01J 35/00 (2006.01); B01J 21/06 (2006.01); B01J 23/50 (2006.01); B01J 37/02 (2006.01); B01J 23/10 (2006.01); C08K 3/22 (2006.01);
U.S. Cl.
CPC ...
A61L 2/088 (2013.01); B01J 21/063 (2013.01); B01J 23/10 (2013.01); B01J 23/50 (2013.01); B01J 35/004 (2013.01); B01J 35/02 (2013.01); B01J 37/0215 (2013.01); C08K 3/08 (2013.01); C09J 7/22 (2018.01); C09J 7/29 (2018.01); C08K 2003/2241 (2013.01); C08K 2201/005 (2013.01); C08K 2201/014 (2013.01); C09J 2301/41 (2020.08); C09J 2400/143 (2013.01);
Abstract

A self-disinfecting photocatalyst sheet includes a substrate material and a photocatalyst layer with a primary photocatalyst and a secondary photocatalyst. The primary photocatalyst is a metal oxide photocatalyst, whereas the secondary photocatalyst is a metallic photocatalyst. The substrate material binds the photocatalyst layer by either connecting a metal ion of the primary photocatalyst and/or the secondary photocatalyst through two oxygen atoms of a carboxyl group (COO), or by forming hydrogen bonds between a carbonyl group and a surface hydroxyl group (OH) of the primary photocatalyst. The self-disinfecting photocatalyst sheet is activatable by a visible light and can self-disinfect against bacteria and viruses.

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