Title:
【発明の名称】カチオン性基と求核性基との反応により製造される半透膜
Document Type and Number:
Japanese Patent JPS62502320
Kind Code:
A
Abstract:
A novel composite membrane and methods of making the membrane are described. The discriminating layer of the membrane is prepared by reaction of a reactive cationic compound group with a compound bearing a nucleophilic moiety. At least one of the reactants bears an average of two or more reactive groups. The reaction product contains covalent bonds formed via charge eliminating reactions. In a preferred embodiment of the invention, the nucleophilic group is anionic and a coacervate is formed initially on a microporous substrate. The resulting membrane may be useful for reverse osmosis, gas or ultrafiltration separations.
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Inventors:
Davis, Thomas E
Ko, Jai
Donald El
Wesling, Ritchie A
Whitple, Sharon S
Pitzkerman, Dale Em
Huai Bigger, Litchiard F
Ko, Jai
Donald El
Wesling, Ritchie A
Whitple, Sharon S
Pitzkerman, Dale Em
Huai Bigger, Litchiard F
Application Number:
JP50596886A
Publication Date:
September 10, 1987
Filing Date:
October 17, 1986
Export Citation:
Assignee:
The Dow Chemical Company-
International Classes:
B01D67/00; B01D69/02; C08J5/22; B01D69/08; B01D69/12; B01D69/14; B01D71/40; B01D71/44; B01D71/46; B01D71/52; B01D71/68; B01D71/72; B01D71/80; B01D71/82; B01D; (IPC1-7): B01D13/00; B01D13/04; C08J5/22
Domestic Patent References:
| JPS59186605A | 1984-10-23 | |||
| JPS6035936A | 1985-02-23 | |||
| JPS49117370A | 1974-11-09 |
Attorney, Agent or Firm:
Takehiko Saito