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Title:
PERVAPORATION MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2024/070355
Kind Code:
A1
Abstract:
The present invention provides a novel pervaporation membrane suitable for separating a volatile organic compound from an aqueous solution containing the organic compound. A pervaporation membrane 10 according to the present invention comprises a separation function layer 1 and a porous support 5 that supports the separation function layer 1. The porous support 5 has surface A1, which faces the separation function layer 1 and includes a plurality of openings H1, and an average diameter L1 of the plurality of openings H1 is 0.5 μm or greater. In the pervaporation membrane 10, a separation strength measured by the following test is 0.15 N/20 mm or greater.　Test: The test piece is obtained by cutting the pervaporation membrane 10 to a width of 20 mm x a length of 150 mm. The test piece is used to peel the separation function layer 1 from the porous support 5 at a peeling angle of 180° and a tensile speed of 300 mm/min.

Inventors:
YANO HIKARU (JP)
NAKANO TAKESHI (JP)
IKENAGA AKIE (JP)
SUZUKI TATSUYA (JP)
TANAKA AKIKO (JP)
Application Number:
PCT/JP2023/030397
Publication Date:
April 04, 2024
Filing Date:
August 23, 2023
Export Citation:
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Assignee:
NITTO DENKO CORP (JP)
International Classes:
B01D61/36; B01D69/10; B01D69/12; B01D71/44; B01D71/70
Domestic Patent References:
WO2014115687A12014-07-31
Foreign References:
JPH0824604A1996-01-30
JPS57136905A1982-08-24
JP2018023955A2018-02-15
JP2006150323A2006-06-15
JP2014094501A2014-05-22
JPS62286503A1987-12-12
JPS63116705A1988-05-21
JP2005087882A2005-04-07
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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