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:
Jun. 29, 2021
Filed:
Aug. 13, 2019
Applicant:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Inventors:
Shohei Kasahara, Osaka, JP;
Kosuke Makiguchi, Osaka, JP;
Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 63/10 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 69/10 (2006.01); B01D 69/12 (2006.01); B01D 71/40 (2006.01); B01D 71/82 (2006.01); C01B 3/50 (2006.01);
U.S. Cl.
CPC ...
B01D 53/228 (2013.01); B01D 63/10 (2013.01); B01D 67/009 (2013.01); B01D 69/02 (2013.01); B01D 69/10 (2013.01); B01D 69/12 (2013.01); B01D 71/40 (2013.01); B01D 71/82 (2013.01); C01B 3/503 (2013.01); B01D 2325/20 (2013.01); B01D 2325/42 (2013.01); C01B 2203/0405 (2013.01); C01B 2203/0475 (2013.01);
Abstract
A separation membrane sheet that causes a specific fluid component to selectively permeate therethrough, comprises: a first porous layer; and a resin composition layer formed on the first porous layer. The resin composition layer has a filtration residue fraction of greater than or equal to 20% and less than or equal to 90%; and contains a resin having an ionic group or a salt thereof, and has an ion exchange capacity of greater than or equal to 1 millimole equivalent per 1 g of a dry resin in a filtration residue.