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:
Oct. 06, 2026
Filed:
Aug. 23, 2022
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Shingo Takechi, Otsu, JP;
Hiroo Katsuta, Otsu, JP;
Hidekazu Kano, Otsu, JP;
Masaki Fujita, Otsu, JP;
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 69/02 (2006.01); B01D 19/00 (2006.01); B01D 53/22 (2006.01); B01D 69/08 (2006.01);
U.S. Cl.
CPC ...
B01D 69/02 (2013.01); B01D 19/0031 (2013.01); B01D 53/22 (2013.01); B01D 69/087 (2013.01); B01D 2325/021 (2013.01); B01D 2325/0283 (2022.08); B01D 2325/04 (2013.01); B01D 2325/24 (2013.01); B01D 2325/38 (2013.01);
Abstract
A high-quality microporous hollow fiber membrane having high gas permeability, gas selectivity, and strength. A microporous hollow fiber membrane, having a carbon dioxide gas flux of 10×10to 200×10(cm(STP)/cm/sec/cmHg), a value (carbon dioxide gas flux/nitrogen gas flux) obtained by dividing a value of a carbon dioxide gas flux by a value of a nitrogen gas flux (cm(STP)/cm/sec/cmHg) of 1.3 or more, and a tensile strength of 0.5 cN/dtex or more.