Title:
COMPOSITE SEPARATION MEMBRANE AND SEPARATION MEMBRANE ELEMENT USING SAME
Document Type and Number:
WIPO Patent Application WO/2015/114727
Kind Code:
A1
Abstract:
This composite separation membrane is provided with a porous support and a separation function layer formed thereon. The separation function layer is made of a polyamide prepared by reaction of a group of compounds which comprise a polyfunctional amine having an aromatic ring, an aliphatic polyfunctional amine except the polyfunctional amine having an aromatic ring, and a polyfunctional acid halide. The units derived from the polyfunctional amine having an aromatic ring account for 30mol% or less of the polyfunctional amine units of the polyamide. The composite separation membrane is a composite separation membrane which is provided with both a porous support and a separation function layer formed thereon and which can achieve improvement in the permeation flux of the solvent of a liquid to be separated while inhibiting the rejection of solutes contained in the liquid from lowering.
Inventors:
KAMADA TAKASHI (JP)
OHARA TOMOMI (JP)
OHARA TOMOMI (JP)
Application Number:
PCT/JP2014/006510
Publication Date:
August 06, 2015
Filing Date:
December 26, 2014
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B01D71/56; B01D69/10; B01D69/12; C08G69/26
Foreign References:
| JP2000033243A | 2000-02-02 | |||
| JPH04267936A | 1992-09-24 | |||
| JPH05329346A | 1993-12-14 | |||
| JP2008080187A | 2008-04-10 | |||
| JPS6418406A | 1989-01-23 | |||
| JPH0623238A | 1994-02-01 |
Attorney, Agent or Firm:
KAMADA, KOICHI (JP)
Koichi Kamata (JP)
Koichi Kamata (JP)
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