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Patent Searching and Data


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)
Application Number:
JP2020/013889
Publication Date:
October 08, 2020
Filing Date:
March 27, 2020
Export Citation:
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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:
WO2005028500A12005-03-31
WO2010074136A12010-07-01
WO2016072409A12016-05-12
Foreign References:
JP2008194647A2008-08-28
JP2017148737A2017-08-31
JP2005058906A2005-03-10
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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