Title:
COMPOSITE SEMI-PERMEABLE MEMBRANE HAVING FLUORINE-CONTAINING POLYAMIDE LAYER
Document Type and Number:
Japanese Patent JP2022084205
Kind Code:
A
Abstract:
To provide a new composite semi-permeable membrane which is useful for treatment (treatment such as separation, purification and concentration) of both liquids of a water-based liquid and an organic liquid.SOLUTION: A composite semi-permeable membrane has a dense polyamide layer on a porous base material membrane, in which the polyamide layer is a layer of polyamide containing a fluorine atom, and an atomic ratio F/N of the fluorine atom to the nitrogen atom in the polyamide layer is 0.03 or more and 2.0 or less. The porous base material membrane is particularly preferably a composite semi-permeable membrane composed of a polyketone resin.SELECTED DRAWING: None
Inventors:
MATSUYAMA HIDETO
SHINTANI TAKUJI
KUBOTA NOBORU
SHINTANI TAKUJI
KUBOTA NOBORU
Application Number:
JP2020195912A
Publication Date:
June 07, 2022
Filing Date:
November 26, 2020
Export Citation:
Assignee:
ASAHI KASEI CORP
UNIV KOBE
UNIV KOBE
International Classes:
B01D71/56; B01D69/02; B01D69/12; B01D71/72
Attorney, Agent or Firm:
Aoki Atsushi
Shinji Mihashi
Kazuhiro Nakamura
Saito Tsuko
Shunsuke Sanma
Ryo Ishii
Shinji Mihashi
Kazuhiro Nakamura
Saito Tsuko
Shunsuke Sanma
Ryo Ishii