Title:
POROUS MEMBRANE, AND METHOD FOR MANUFACTURING POROUS MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2017/217446
Kind Code:
A1
Abstract:
[Problem] To provide a porous membrane suitable for use in filtration, having excellent blocking performance and water permeability performance, and enabling filtration with long-term stability. [Solution] A porous membrane characterized in having a membrane thickness of at least 150μm, the pore diameter on one surface being smaller than the pore diameter on the other surface, the average value of the pore diameter on the one surface being at most 60nm, and the coefficient of variation of said pore diameter being 10-50%, inclusive.
Inventors:
MIKI YUKI (JP)
OKAMURA DAISUKE (JP)
FUJIMURA HIROKAZU (JP)
HASHINO MASATOSHI (JP)
OKAMURA DAISUKE (JP)
FUJIMURA HIROKAZU (JP)
HASHINO MASATOSHI (JP)
Application Number:
PCT/JP2017/021919
Publication Date:
December 21, 2017
Filing Date:
June 14, 2017
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
B01D69/00; B01D69/02; B01D69/08; B01D71/34; B01D71/52; B01D71/68; C08J9/28; D01F6/12
Domestic Patent References:
| WO1997022405A1 | 1997-06-26 | |||
| WO2015046411A1 | 2015-04-02 | |||
| WO2010082437A1 | 2010-07-22 |
Foreign References:
| JP2014076446A | 2014-05-01 | |||
| JPS60246812A | 1985-12-06 | |||
| JP2010233999A | 2010-10-21 | |||
| JPH02164428A | 1990-06-25 | |||
| JPS6320339A | 1988-01-28 | |||
| JPS63267406A | 1988-11-04 |
Other References:
See also references of EP 3473331A4
Attorney, Agent or Firm:
YANAGIDA, Masashi et al. (JP)
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