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Title:
POROUS HOLLOW FIBER MEMBRANE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/066061
Kind Code:
A1
Abstract:
The present invention provides a porous hollow fiber membrane suitable for the removal of minute substances, e.g., viruses, contained in a liquid. The present invention relates to a porous hollow fiber membrane which is provided with a separation-functioning layer containing a fluororesin, has a gas diffusion amount of 0.5 to 5.0 mL/m2/hr as measured in a diffusion test, and also has foaming points at a density of 0.005 to 0.2 point/cm2 as measured in a foaming test under the immersion in 2-propanol.

Inventors:
YASUDA TAKAAKI (JP)
KOBAYASHI KENTARO (JP)
Application Number:
PCT/JP2018/036543
Publication Date:
April 04, 2019
Filing Date:
September 28, 2018
Export Citation:
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Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B01D69/08; B01D69/00; B01D69/02; B01D69/10; B01D69/12; B01D71/12; B01D71/32; B01D71/40; B01D71/44; D06M15/07; D06M15/227; D06M15/263
Domestic Patent References:
WO2016031834A12016-03-03
WO2003026779A12003-04-03
WO2015156401A12015-10-15
Foreign References:
JP2010094670A2010-04-30
JP2012200635A2012-10-22
JPH06154567A1994-06-03
JP2007108178A2007-04-26
JP2007289886A2007-11-08
JP2017188107A2017-10-12
JP2018120565A2018-08-02
Other References:
"Standard methods for the examination of water and wastewater", 1998, APHA
See also references of EP 3689445A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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