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1. WO2009008500 - COMPOSITE SEMIPERMEABLE MEMBRANE

Publication Number WO/2009/008500
Publication Date 15.01.2009
International Application No. PCT/JP2008/062565
International Filing Date 11.07.2008
Chapter 2 Demand Filed 21.04.2009
IPC
B01D 71/40 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
40Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
B01D 69/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
69Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
CPC
B01D 2321/168
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2321Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
16Use of chemical agents
168Use of other chemical agents
B01D 2323/08
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2323Details relating to membrane preparation
08Specific temperatures applied
B01D 2323/12
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2323Details relating to membrane preparation
12Specific ratios of components used
B01D 2323/30
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2323Details relating to membrane preparation
30Cross-linking
B01D 2325/28
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2325Details relating to properties of membranes
28Degradation or stability over time
B01D 2325/48
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2325Details relating to properties of membranes
48Antimicrobial properties
Applicants
  • 日東電工株式会社 NITTO DENKO CORPORATION [JP]/[JP] (AllExceptUS)
  • 西山 真哉 NISHIYAMA, Shinya [JP]/[JP] (UsOnly)
  • 倉田 直記 KURATA, Naoki [JP]/[JP] (UsOnly)
  • 小西 貴久 KONISHI, Takahisa [JP]/[JP] (UsOnly)
  • 山代 祐司 YAMASHIRO, Yuuji [JP]/[JP] (UsOnly)
  • 丸山 幸治 MARUYAMA, Kouji [JP]/[JP] (UsOnly)
  • 宇田 康弘 UDA, Yasuhiro [JP]/[JP] (UsOnly)
  • 原田 千秋 HARADA, Chiaki [JP]/[JP] (UsOnly)
Inventors
  • 西山 真哉 NISHIYAMA, Shinya
  • 倉田 直記 KURATA, Naoki
  • 小西 貴久 KONISHI, Takahisa
  • 山代 祐司 YAMASHIRO, Yuuji
  • 丸山 幸治 MARUYAMA, Kouji
  • 宇田 康弘 UDA, Yasuhiro
  • 原田 千秋 HARADA, Chiaki
Agents
  • 特許業務法人 ユニアス国際特許事務所 UNIUS PATENT ATTORNEYS OFFICE
Priority Data
2007-18345012.07.2007JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) COMPOSITE SEMIPERMEABLE MEMBRANE
(FR) MEMBRANE SEMI-PERMÉABLE COMPOSITE
(JA) 複合半透膜
Abstract
(EN)
A composite semipermeable membrane excelling in contamination resistance, especially microbial contamination resistance; and a method of water treatment using the composite semipermeable membrane. The composite semipermeable membrane having a porous support provided on its surface with a skin layer containing a polyamide resin obtained by reacting a polyfunctional amine component with a polyfunctional acid halide component, is characterized in that an antibacterial layer containing a silver antibacterial agent and a polymer component is superimposed directly on or via another layer on the skin layer and that the weight ratio of silver antibacterial agent to polymer component in the antibacterial layer is in the range of 55:45 to 95:5 (silver antibacterial agent : polymer component).
(FR)
L'invention porte sur une membrane semi-perméable composite présentant une excellente résistance à la contamination, en particulier à la contamination microbienne ; et sur un procédé de traitement de l'eau à l'aide de la membrane semi-perméable composite. La membrane semi-perméable composite, ayant un support poreux disposé sur sa surface avec une couche de peau contenant une résine de polyamide obtenue par la réaction d'un composant amine polyfonctionnel avec un composant halogénure d'acide polyfonctionnel, est caractérisée par le fait qu'une couche antibactérienne contenant un agent antibactérien à l'argent et un composant polymère est superposée directement sur la couche de peau, ou avec interposition d'une autre couche, et que le rapport en poids de l'agent antibactérien à l'argent au composant polymère dans la couche antibactérienne se situe dans la plage de 55:45 à 95:5 (agent antibactérien à l'argent : composant polymère).
(JA)
 耐汚染特性、特に耐微生物汚染特性に優れる複合半透膜、及び該複合半透膜を用いる水処理方法を提供することを目的とする。本発明は、多官能アミン成分と多官能酸ハライド成分とを反応させてなるポリアミド系樹脂を含むスキン層が多孔性支持体の表面に形成されている複合半透膜において、スキン層上に直接又は他の層を介して銀系抗菌剤及びポリマー成分を含有する抗菌層が形成されており、抗菌層中の銀系抗菌剤とポリマー成分との重量比が55:45~95:5(銀系抗菌剤:ポリマー成分)であることを特徴とする複合半透膜、に関する。
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