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.

Date of Patent:
Nov. 21, 2023

Filed:

Jun. 24, 2020
Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Akihiro Ishii, Kanagawa, JP;

Takeshi Umehara, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 71/68 (2006.01); C08G 75/23 (2006.01); C08L 81/06 (2006.01); C08J 5/18 (2006.01); B01D 71/22 (2006.01); B01D 69/02 (2006.01);
U.S. Cl.
CPC ...
B01D 71/68 (2013.01); B01D 69/02 (2013.01); B01D 71/22 (2013.01); C08G 75/23 (2013.01); C08J 5/18 (2013.01); C08L 81/06 (2013.01); B01D 2313/44 (2013.01); B01D 2325/022 (2013.01); B01D 2325/04 (2013.01); C08J 2381/06 (2013.01); C08J 2401/28 (2013.01);
Abstract

A porous membrane includes a polymer which includes one or more structural units selected from the group consisting of a structural unit represented by Formula (I) and a structural unit represented by Formula (II), in which a content of the structural unit represented by Formula (II) is 1% by mass or more and less than 10% by mass with respect to a total mass of the structural unit represented by Formula (I) and the structural unit represented by Formula (II)


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