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:
Aug. 20, 2019
Filed:
Jul. 02, 2018
Applicant:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Inventors:
Satoshi Yoneyama, Niihama, JP;
Daizaburo Yashiki, Niihama, JP;
Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 2/08 (2006.01); C08J 9/28 (2006.01); C08J 9/36 (2006.01); H01M 4/13 (2010.01); C08J 7/04 (2006.01); H01M 2/14 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
C08J 9/28 (2013.01); C08J 7/047 (2013.01); C08J 9/36 (2013.01); H01M 2/145 (2013.01); H01M 2/16 (2013.01); H01M 4/13 (2013.01); C08J 2323/06 (2013.01); C08J 2401/08 (2013.01); H01M 10/0525 (2013.01); H01M 2300/002 (2013.01);
Abstract
A method for producing a porous film having a water content percentage of less than 1000 ppm, the method including the steps of: (1) obtaining a porous film (A) having a water content percentage of not less than 1000 ppm; (2) obtaining a package by causing the obtained porous film (A) and a drying agent to be contained in a water vapor barrier packaging container and sealing the water vapor barrier packaging container; and (3) storing the obtained package.