Title:
POLYAMIDE POROUS MEMBRANE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2022/071122
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a polyamide porous membrane which improves liquid transmission performance. A polyamide porous membrane having a dense layer formed on one or more surfaces thereof, said membrane having a stripe-shaped recess which extends in a single direction in the surface of the dense layer, wherein the orientation angle of the stripe-shaped recess according to a prescribed orientation analysis is 0-5.0° or 175.0-180.0°, and the orientation strength thereof is 1.5-2.0.
Inventors:
NAKAMURA RYOTA (JP)
INOUE KUNIKO (JP)
UMAKOSHI KYOHEI (JP)
ONO TAKAHIRO (JP)
MATSUYAMA HIDETO (JP)
INOUE KUNIKO (JP)
UMAKOSHI KYOHEI (JP)
ONO TAKAHIRO (JP)
MATSUYAMA HIDETO (JP)
Application Number:
PCT/JP2021/035113
Publication Date:
April 07, 2022
Filing Date:
September 24, 2021
Export Citation:
Assignee:
UNITIKA LTD (JP)
UNIV KOBE NAT UNIV CORP (JP)
UNIV KOBE NAT UNIV CORP (JP)
International Classes:
C08J9/28; B01D63/02; B01D69/00; B01D69/02; B01D69/08; B01D69/10; B01D69/12; B01D71/56; C08G69/02; D01F6/60
Domestic Patent References:
| WO2009054495A1 | 2009-04-30 |
Foreign References:
| JP2014036946A | 2014-02-27 | |||
| JPS63100916A | 1988-05-06 | |||
| JPH0226917A | 1990-01-29 | |||
| JP2015198999A | 2015-11-12 | |||
| JP2010240535A | 2010-10-28 | |||
| JP2005193193A | 2005-07-21 | |||
| JP2002030176A | 2002-01-31 | |||
| JPS5865009A | 1983-04-18 |
Other References:
TOSHIHARU ENOMAE ET AL.: "Method of Determining Fiber Orientation of Paper by Fourier Image Analysis", SUMMARY OF 26TH ANNUAL MEETING OF THE JAPAN SOCIETY FOR THE CONSERVATION OF CULTURAL PROPERTY, 2004, pages 44 - 45
Attorney, Agent or Firm:
TANAKA, Junya et al. (JP)
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