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:
Nov. 10, 2015
Filed:
Aug. 09, 2005
Applicants:
Harunari Shimamura, Osaka, JP;
Koshi Takamura, Osaka, JP;
Nobuharu Koshiba, Nara, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 12/00 (2006.01); H01M 12/04 (2006.01); H01M 4/86 (2006.01); H01M 8/02 (2006.01); H01M 8/04 (2006.01); H01M 12/06 (2006.01); H01M 8/10 (2006.01);
U.S. Cl.
CPC ...
H01M 4/8605 (2013.01); H01M 8/0239 (2013.01); H01M 8/0245 (2013.01); H01M 8/04171 (2013.01); H01M 12/06 (2013.01); H01M 8/10 (2013.01); Y02E 60/50 (2013.01); Y10T 428/24331 (2015.01); Y10T 428/249953 (2015.04); Y10T 428/249981 (2015.04); Y10T 428/25 (2015.01); Y10T 428/254 (2015.01); Y10T 442/10 (2015.04); Y10T 442/60 (2015.04);
Abstract
An oxygen permeable film including an aggregate of water-repellent particles and having an average particle size of the particles of 0.01 to 50 μm has a contact angle with water of not less than 120° and super water repellency, and therefore has an excellent water vapor permeation inhibiting capability. As the particles, fluorocarbon resins such as polytetrafluoroethylene, polyvinyl fluoride and polyvinylidene fluoride are suitable. The specific surface area of the oxygen permeable film is preferably not less than 0.1 m/g and not more than 500 m/g.