Title:
POROUS MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2020/203716
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a porous membrane in which the phenomenon of membranes fusing to each other (membrane sticking) during manufacture of the porous membrane is reduced.
The problem can be solved by a porous membrane containing a hydrophobic polymer and a hydrophilic polymer, wherein the average value T of the ratio of the hydrophilic polymer-derived ion count relative to the hydrophobic polymer-derived ion count, when the surface of the porous membrane is measured by Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS), is 1.0 ≤ T.
Inventors:
TAKAZONO YASUTAKA (JP)
KOMURO MASAYASU (JP)
KOMURO MASAYASU (JP)
Application Number:
PCT/JP2020/013889
Publication Date:
October 08, 2020
Filing Date:
March 27, 2020
Export Citation:
Assignee:
ASAHI KASEI MEDICAL CO LTD (JP)
International Classes:
B01D69/02; B01D69/08; B01D69/10; B01D69/12; B01D71/40; B01D71/68; D01F6/76; D06M15/263; D06M101/30
Domestic Patent References:
| WO2005028500A1 | 2005-03-31 | |||
| WO2010074136A1 | 2010-07-01 | |||
| WO2016072409A1 | 2016-05-12 | |||
| WO2016031834A1 | 2016-03-03 | |||
| WO2004035180A1 | 2004-04-29 |
Foreign References:
| JP2008194647A | 2008-08-28 | |||
| JP2017148737A | 2017-08-31 | |||
| JP2005058906A | 2005-03-10 |
Other References:
PDA JOURNAL OF GMP AND VALIDATION IN JAPAN, vol. 7, no. 1, 2005, pages 44
See also references of EP 3950103A4
See also references of EP 3950103A4
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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