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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.:

US 11236254 B1

PDFFull Text
Date of Patent:
Feb. 01, 2022

Filed:

Oct. 17, 2017

Separator

Applicant:

Nitto Denko Corporation, Ibaraki, JP;

Inventors:

Naofumi Kosaka, Ibaraki, JP;

Keisuke Shimokita, Toyohashi, JP;

Hironao Ootake, Ibaraki, JP;

Asami Doi, Ibaraki, JP;

Mizuho Chiba, Ibaraki, JP;

Akiko Takahashi, Toyohashi, JP;

Assignee:

NITTO DENKO CORPORATION, Ibaraki, JP;

Attorney:

Hauptman Ham, LLP

Primary Examiner:

Anish P Desai

Int. Cl.
CPC ...
C09J 7/40 (2018.01); B32B 5/18 (2006.01); B32B 27/28 (2006.01); B32B 27/34 (2006.01); B32B 27/32 (2006.01); C09J 7/20 (2018.01); C09J 7/38 (2018.01); C09J 201/04 (2006.01); B32B 27/36 (2006.01); B32B 27/00 (2006.01); C09J 201/00 (2006.01);
U.S. Cl.
CPC ...
C09J 7/403 (2018.01); B32B 5/18 (2013.01); B32B 27/00 (2013.01); B32B 27/281 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); C09J 7/20 (2018.01); C09J 7/38 (2018.01); C09J 201/00 (2013.01); C09J 201/04 (2013.01); C09J 2301/302 (2020.08); Y10T 428/14 (2015.01); Y10T 428/1457 (2015.01); Y10T 428/1471 (2015.01); Y10T 428/1476 (2015.01);
Abstract

A separator containing a substrate and a release layer formed on at least one side of the substrate wherein the separator shows a strain of not more than 7% when a load of 5N/20 mm is applied for one minute in the pulling direction, and when the substrate is cut in half in the thickness direction to divide the separator into two, an apparent elastic modulus in the pulling direction of one of the divided separators is larger than an apparent elastic modulus in the pulling direction of the other divided separator.

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