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. 16, 2018
Filed:
Aug. 07, 2015
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Jun Okabe, Otsu, JP;
Masahiro Kimura, Otsu, JP;
Koji Nakatsuji, Otsu, JP;
Tsuyoshi Hamada, Otsu, JP;
Ryoma Miyamoto, Otsu, JP;
Assignee:
TORAY INDUSTRIES, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 69/12 (2006.01); B01D 69/10 (2006.01); B01D 71/42 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 71/66 (2006.01); B01D 71/56 (2006.01); B01D 71/40 (2006.01);
U.S. Cl.
CPC ...
B01D 69/12 (2013.01); B01D 67/0083 (2013.01); B01D 69/02 (2013.01); B01D 69/10 (2013.01); B01D 69/125 (2013.01); B01D 71/42 (2013.01); B01D 71/56 (2013.01); B01D 71/66 (2013.01); B01D 67/0016 (2013.01); B01D 67/0095 (2013.01); B01D 71/40 (2013.01); B01D 2323/08 (2013.01); B01D 2323/30 (2013.01); B01D 2325/24 (2013.01); B01D 2325/30 (2013.01);
Abstract
The present invention provides a separation membrane that is usable at a high temperature and a high pressure. The solvent-resistant separation membrane of the present invention has an average pore diameter of the separation membrane surface of 0.005 to 1 μm and includes a portion where a degree of cyclization (I/I) as measured by the total reflection infrared absorption spectroscopy is 0.5 to 50.