Title:
COMPOSITE SEMIPERMEABLE MEMBRANE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2019/054119
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a composite semipermeable membrane, which has superior oxidant resistance (chlorine resistance) and salting prevention, and a method for manufacturing the same. This composite semipermeable membrane has a skin layer, which includes a polyamide resin obtained by polymerization of a multifunctional amine component and a multifunctional acid halide component and is formed on the surface of a porous support body. The multifunctional amine component includes an alicyclic diamine. The skin layer has an absorption peak intensity of at least 0.03 that is obtained by a Fourier transform infrared spectroscopy (FT-IR) transmission method and originates in the stretching vibration of C=O in the amide groups.
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Inventors:
MIYABE TOMOTSUGU (JP)
INOUE SHINICHI (JP)
OKAZAKI YUHA (JP)
OGAWA TOMOYA (JP)
INOUE SHINICHI (JP)
OKAZAKI YUHA (JP)
OGAWA TOMOYA (JP)
Application Number:
PCT/JP2018/030437
Publication Date:
March 21, 2019
Filing Date:
August 16, 2018
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B01D71/56; B01D69/10; B01D69/12
Domestic Patent References:
WO2015114727A1 | 2015-08-06 |
Foreign References:
JP2016093797A | 2016-05-26 | |||
JP2014233652A | 2014-12-15 | |||
JP2010137192A | 2010-06-24 | |||
US4769148A | 1988-09-06 | |||
JPS63123406A | 1988-05-27 | |||
JPS5824303A | 1983-02-14 | |||
JPH01180208A | 1989-07-18 | |||
JPH08224452A | 1996-09-03 |
Other References:
See also references of EP 3682964A4
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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