Title:
濾過膜
Document Type and Number:
Japanese Patent JP2008534274
Kind Code:
A
Abstract:
The invention is directed to a filtration membrane that is capable for the retention of endotoxines and cytokine inducing substances (CIS) including bacterial DNA and/or DNA fragments from fluid and/or liquid media. The invention is further directed to a method of manufacturing such filtration membranes in a high quality and in an effective and time saving procedure, and to the use of such membranes for the retention of substances from fluids or liquids. The filtration membrane of the invention consists of a polymer blend comprising at least one hydrophobic polymer containing sulfur in its back bone, at least one hydrophilic, uncharged homo-polymer of polyvinylpyrrolidone and at least one polymer containing cationic charges. The method of manufacturing such a filtration membrane comprises dissolving at least one hydrophobic polymer containing sulfur in its back bone and at least one hydrophilic, uncharged polyvinylpyrrolidone and at least one polymer containing cationic charges in at least one solvent to form a polymer solution, subjecting the formed polymer solution to a diffusion-induced phase separation to prepare a filtration membrane, washing and subsequently drying of the filtration membrane.
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Inventors:
Clause, Bernd
Hornuk, Marx
Airtle, thomas
Stall, marx
Hornuk, Marx
Airtle, thomas
Stall, marx
Application Number:
JP2008504774A
Publication Date:
August 28, 2008
Filing Date:
April 06, 2006
Export Citation:
Assignee:
GAMBRO LUNDIA AB
International Classes:
B01D71/44; B01D61/14; B01D71/56; B01D71/58; B01D71/68; C08L39/06; C08L79/02; C08L81/06
Domestic Patent References:
| JP2001261983A | 2001-09-26 | |||
| JP2003250885A | 2003-09-09 | |||
| JPH0970524A | 1997-03-18 | |||
| JP2001170171A | 2001-06-26 |
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Katsu Sunagawa
Ryo Hashimoto
Tetsuya Kazama
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Katsu Sunagawa
Ryo Hashimoto
Tetsuya Kazama