Title:
POROUS HOLLOW FIBER MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2013/012024
Kind Code:
A1
Abstract:
[Problem] To provide a porous hollow fiber membrane which is capable of efficiently separating and removing a substance to be removed such as a small-diameter virus contained in a solution, while efficiently transmitting a useful substance to be recovered such as a high-concentration protein at the same time.
[Solution] A porous hollow fiber membrane of the present invention is characterized by being composed of two components, namely a polysulfone polymer and a copolymer of vinyl pyrrolidone and vinyl acetate and by having an inner diameter of from 150 μm to 300 μm (inclusive) and a film thickness of more than 50 μm but 80 μm or less. The porous hollow fiber membrane is also characterized by having an asymmetric structure that has a dense layer as an outer layer.
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Inventors:
MONDEN NORIKO (JP)
ASHITAKA SATORU (JP)
UENISHI TORU (JP)
SHIBATA KAZUHISA (JP)
YOKOTA HIDEYUKI (JP)
ASHITAKA SATORU (JP)
UENISHI TORU (JP)
SHIBATA KAZUHISA (JP)
YOKOTA HIDEYUKI (JP)
Application Number:
PCT/JP2012/068278
Publication Date:
January 24, 2013
Filing Date:
July 19, 2012
Export Citation:
Assignee:
TOYO BOSEKI (JP)
MONDEN NORIKO (JP)
ASHITAKA SATORU (JP)
UENISHI TORU (JP)
SHIBATA KAZUHISA (JP)
YOKOTA HIDEYUKI (JP)
MONDEN NORIKO (JP)
ASHITAKA SATORU (JP)
UENISHI TORU (JP)
SHIBATA KAZUHISA (JP)
YOKOTA HIDEYUKI (JP)
International Classes:
B01D61/14; B01D69/08; B01D71/38; B01D71/44; B01D71/68; D01F6/00; D01F6/76; D01F6/94
Domestic Patent References:
| WO2010074136A1 | 2010-07-01 | |||
| WO2009104705A1 | 2009-08-27 |
Foreign References:
| JP2008543546A | 2008-12-04 | |||
| JP2010248092A | 2010-11-04 |
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Claims: