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. 26, 2019
Filed:
Nov. 05, 2015
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Naoki Mizuno, Tochigi, JP;
Masami Sugata, Tochigi, JP;
Assignee:
TORAY INDUSTRIES, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 71/38 (2006.01); B32B 5/32 (2006.01); B32B 27/32 (2006.01); C08J 9/28 (2006.01); B01D 71/40 (2006.01); B21B 1/08 (2006.01); C08F 16/06 (2006.01); C08F 20/06 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 69/12 (2006.01); H01M 2/16 (2006.01); B01D 71/26 (2006.01); B01D 71/34 (2006.01);
U.S. Cl.
CPC ...
B01D 71/38 (2013.01); B01D 67/0025 (2013.01); B01D 69/02 (2013.01); B01D 69/12 (2013.01); B01D 71/40 (2013.01); B21B 1/0815 (2013.01); B32B 5/32 (2013.01); B32B 27/32 (2013.01); C08F 16/06 (2013.01); C08F 20/06 (2013.01); C08J 9/28 (2013.01); H01M 2/1653 (2013.01); H01M 2/1686 (2013.01); B01D 67/0013 (2013.01); B01D 71/26 (2013.01); B01D 71/34 (2013.01); B01D 2325/04 (2013.01);
Abstract
A polyolefin microporous membrane is disclosed. The membrane has a width of not less than 100 mm, and a variation range of an F25 value in a width direction is not greater than 1 MPa. The F25 value is a value obtained by dividing a load at 25% elongation of a sample of the laminated polyolefin microporous membrane as measured with a tensile testing machine by a cross-sectional area of the sample.