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:
Jul. 04, 2017
Filed:
Mar. 29, 2013
Applicant:
Mitsubishi Rayon Co., Ltd., Chiyoda-ku, JP;
Inventor:
Noritaka Shibata, Toyohashi, JP;
Assignee:
Mitsubishi Rayon Co., Ltd., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 69/08 (2006.01); B01D 69/10 (2006.01); B01D 71/26 (2006.01); C08J 9/00 (2006.01); C08K 5/06 (2006.01); B01D 69/02 (2006.01); B01D 69/14 (2006.01); C08L 23/02 (2006.01); C08K 7/22 (2006.01);
U.S. Cl.
CPC ...
B01D 53/228 (2013.01); B01D 69/02 (2013.01); B01D 69/08 (2013.01); B01D 69/10 (2013.01); B01D 69/141 (2013.01); B01D 71/26 (2013.01); C08J 9/00 (2013.01); C08K 5/06 (2013.01); B01D 2323/02 (2013.01); B01D 2325/027 (2013.01); B01D 2325/36 (2013.01); B01D 2325/38 (2013.01); C08K 7/22 (2013.01); C08L 23/02 (2013.01); C08L 2203/12 (2013.01);
Abstract
This composite hollow fiber membrane comprises a non-porous homogeneous layer which is gas-permeable and a porous support layer which supports said homogeneous layer, and is characterized in that the non-porous homogeneous layer is hydrophobic and the polyolefin resin constituting the porous support layer contains a hydrophilic additive. By this means, a composite hollow fiber membrane for use in degassing can be provided that is hydrophilic, has high water vapor permeability, and can solve the problem of gas permeability being reduced due to condensate in the porous substance.