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:
Apr. 29, 2014
Filed:
Mar. 05, 2010
Applicants:
Takeshi Ishihara, Nasushiobara, JP;
Satoshi Miyaoka, Nasushiobara, JP;
Koichi Kono, Nasushiobara, JP;
Donna J. Crowther, Seabrook, TX (US);
Patrick Brant, Seabrook, TX (US);
Kazuhiro Yamada, Nasushiobara, JP;
Inventors:
Takeshi Ishihara, Nasushiobara, JP;
Satoshi Miyaoka, Nasushiobara, JP;
Koichi Kono, Nasushiobara, JP;
Donna J. Crowther, Seabrook, TX (US);
Patrick Brant, Seabrook, TX (US);
Kazuhiro Yamada, Nasushiobara, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A microporous membrane comprising layers, wherein at least one layer comprises a first polymer having a Tm in the range of 115.0° C. to 130.0° C. and an Mw of from 5.0×10to 4.0×10, and the membrane has a shutdown temperature≦130.5° C. and a rupture temperature≧170.0° C.