Title:
MICROPOROUS MEMBRANE OF POLYAMIDE
Document Type and Number:
Japanese Patent JPH02180626
Kind Code:
A
Abstract:
PURPOSE: To selectively remove pyrodiene contained in water by fixing a cationic nitrogen-containing heterocyclic compound in a polyamide microporous membrane with excellent flowing property.
CONSTITUTION: A polyamide having a repeating unit of [CO(CH2)5NH]n in its molecular structure is used. Since the polyamide resin has a reactive secondary amine and carboxyl group in the end terminals, a nitrogen-containing heterocyclic compound such as a histidine, etc., is fixed through a crosslinking agent such as polyepoxy compounds. A polyamide microporous membrane prepared by the method can remove pyrodiene contained in water selectively and a high flow rate with low pressure is achieved.
Inventors:
INAMI YOSHIAKI
SAITO MASAHARU
ANZAI TSUNEHISA
SAITO MASAHARU
ANZAI TSUNEHISA
Application Number:
JP33456488A
Publication Date:
July 13, 1990
Filing Date:
December 29, 1988
Export Citation:
Assignee:
TOYO ROSHI KAISHA
International Classes:
B01D71/56; C08J9/42; C08L77/00; D01F6/60; D01F6/90; (IPC1-7): B01D71/56; C08J9/42; C08L77/00; D01F6/60; D01F6/90
Domestic Patent References:
| JPS58145740A | 1983-08-30 | |||
| JPS63287503A | 1988-11-24 |
Attorney, Agent or Firm:
Kazuo Ozeki