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Patent Searching and Data


Title:
SEPARATION MEMBRANE
Document Type and Number:
Japanese Patent JP2020044517
Kind Code:
A
Abstract:
To provide a separation membrane which is small in reduction of water permeability when contacting a stock solution containing a cationic substance.SOLUTION: A separation membrane (10) includes a separation function layer (30) composed of polyamide, and a coating (40) which covers the separation function layer (30) and contains a polymer having a repeating unit represented by formula (1). In formula (1), Nis a nitrogen atom constituting quaternary ammonium cation; and each of Rand Ris independently a substituent containing a carbon atom bonded to a nitrogen atom.SELECTED DRAWING: Figure 1

Inventors:
MIYABE RINJI
TAKAMOTO ATSUTO
Application Number:
JP2018176625A
Publication Date:
March 26, 2020
Filing Date:
September 20, 2018
Export Citation:
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Assignee:
NITTO DENKO CORP
International Classes:
B01D71/56; B01D69/10; B01D69/12; C08F26/00; C08G69/00
Attorney, Agent or Firm:
Koichi Kamata
Masatoshi Furuta