Title:
膜の後処理
Document Type and Number:
Japanese Patent JP4908208
Kind Code:
B2
Abstract:
The invention relates to polymeric ultrafiltration or microfiltration membranes of, for instance, poly(ethylene chlorotrifluoroethylene) (HALAR®), PVDF or PP, incorporating PVME or vinyl methyl ether monomers. The PVME may be present as a coating on the membrane or dispersed throughout the membrane or both. The membranes are preferably hydrophilic with a highly asymmetric structure with a reduced pore size and/or absence of macrovoids as a result of the addition of PVME. The PVME maybe cross-linked. The invention also relates to methods of hydrophilising membranes and/or preparing hydrophilic membranes via thermal or diffusion induced phase separation processed.
Inventors:
Daniel Mullet
Joachim Muller
Nita Patel
Joachim Muller
Nita Patel
Application Number:
JP2006517906A
Publication Date:
April 04, 2012
Filing Date:
July 08, 2004
Export Citation:
Assignee:
Siemens Water Technologies Corporation
International Classes:
B01D69/02; B01D61/14; B01D67/00; B01D69/14; B01D71/26; B01D71/32; B01D71/34; B01D71/38; B01D71/82; C08J7/04
Domestic Patent References:
| JP5115760A | ||||
| JP4022428A | ||||
| JP9512857A | ||||
| JP53028083A |
Attorney, Agent or Firm:
Yasuhiko Murayama
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro