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:
Mar. 29, 2016
Filed:
Sep. 18, 2012
Applicant:
Mitsubishi Gas Chemical Company, Inc., Chiyoda-ku, JP;
Inventor:
Akira Ito, Yokkaichi, JP;
Assignee:
MITSUBISHI GAS CHEMICAL COMPANY, INC., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 71/52 (2006.01); B01D 69/02 (2006.01); B01D 71/72 (2006.01);
U.S. Cl.
CPC ...
B01D 71/52 (2013.01); B01D 53/22 (2013.01); B01D 53/228 (2013.01); B01D 69/02 (2013.01); B01D 71/72 (2013.01); B01D 2053/221 (2013.01); B01D 2323/12 (2013.01); B01D 2325/20 (2013.01); Y02C 10/10 (2013.01);
Abstract
The present invention relates to a gas separation membrane comprising as a main component a polyacetal, wherein the polyacetal contains 1.5 to 10 mol of an oxyalkylene unit based on 100 mol of an oxymethylene unit. The gas separation membrane of the present invention has high carbon dioxide gas separating ability and high permeability rate to carbon dioxide gas and is advantageously used as a separation membrane for carbon dioxide gas contained in exhaust gas.