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:
Jan. 11, 2022
Filed:
Sep. 19, 2019
Applicant:
Nitto Denko Corporation, Ibaraki, JP;
Inventors:
Tomotsugu Miyabe, Osaka, JP;
Atsuhito Komoto, Osaka, JP;
Assignee:
NITTO DENKO CORPORATION, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 71/56 (2006.01); B01D 69/10 (2006.01); B01D 71/62 (2006.01); B01D 67/00 (2006.01);
U.S. Cl.
CPC ...
B01D 71/56 (2013.01); B01D 69/10 (2013.01); B01D 71/62 (2013.01); B01D 67/0088 (2013.01);
Abstract
A separation membrane () of the present disclosure includes: a separation functional layer () composed of a polyamide; and a coating () covering the separation functional layer () and containing a polymer having a repeating unit represented by the following formula (1). In the formula (1), Nis a nitrogen atom constituting a quaternary ammonium cation, and Rand Rare each independently a substituent containing a carbon atom bonded to the nitrogen atom.