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:
May. 10, 2022
Filed:
Jun. 17, 2016
Applicant:
Ube Industries, Ltd., Ube, JP;
Inventors:
Ryo Sakimoto, Sodegaura, JP;
Kenji Kawabata, Osaka, JP;
Hiroki Nagumo, Osaka, JP;
Taiga Adachi, Osaka, JP;
Assignee:
Ube Industries, Ltd., Ube, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/44 (2021.01); B32B 5/32 (2006.01); B32B 27/32 (2006.01); B32B 27/08 (2006.01); H01M 50/411 (2021.01); H01M 10/0525 (2010.01); H01M 50/449 (2021.01); C08J 5/18 (2006.01); H01M 50/429 (2021.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 50/44 (2021.01); B32B 5/32 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); C08J 5/18 (2013.01); H01M 50/411 (2021.01); H01M 50/4295 (2021.01); H01M 50/449 (2021.01); B32B 2250/03 (2013.01); B32B 2250/242 (2013.01); B32B 2250/40 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2307/30 (2013.01); B32B 2307/306 (2013.01); B32B 2307/50 (2013.01); B32B 2307/538 (2013.01); B32B 2307/734 (2013.01); B32B 2457/10 (2013.01); B32B 2457/16 (2013.01); B32B 2605/00 (2013.01); C08J 2323/06 (2013.01); C08J 2323/12 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01); Y02E 60/13 (2013.01);
Abstract
A polyolefin micro porous film includes at least one of polyethylene and polypropylene, in which the compressive elastic modulus is 95 MPa or more and 150 MPa or less, the surface roughness (Ra) of a film surface is measured for a front surface and a rear surface, and the average value (Ra(ave)) thereof is 0.01 μm to 0.30 μm.