Title:
POROUS HOLLOW FIBER MEMBRANE, METHOD FOR PRODUCING SAME, AND WATER PURIFICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2015/104871
Kind Code:
A1
Abstract:
This porous hollow fiber membrane is formed of a thermoplastic resin and is provided with a surface having a surface aperture ratio of 32-60% and a pore diameter of 300 nm or less, while having a compressive strength of 0.7 MPa or more. This porous hollow fiber membrane may be composed of at least two layers, and in cases where this porous hollow fiber membrane is composed of at least two layers, the surface of one layer has a trunk diameter of 0.3-20 μm and a pore diameter of 0.3-10 μm and the surface of another layer has a surface aperture ratio of 32-60% and a pore diameter of 0.05-0.3 μm.
Inventors:
OKAMURA DAISUKE (JP)
MIKI YUKI (JP)
HASHINO MASATOSHI (JP)
MIKI YUKI (JP)
HASHINO MASATOSHI (JP)
Application Number:
PCT/JP2014/074737
Publication Date:
July 16, 2015
Filing Date:
September 18, 2014
Export Citation:
Assignee:
ASAHI KASEI CHEMICALS CORP (JP)
International Classes:
B01D69/08; B01D69/02; B01D69/12; B01D71/34; C02F1/44; D01F6/00; D01F6/12
Domestic Patent References:
| WO1997022405A1 | 1997-06-26 |
Foreign References:
| JP2010227932A | 2010-10-14 | |||
| JP2009219979A | 2009-10-01 | |||
| JP2007185562A | 2007-07-26 | |||
| JP2012040461A | 2012-03-01 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)
Yoshiki Hasegawa (JP)
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