Invention Grant
- Patent Title: Hydrophilic polyethersulfone filtration membrane, process for producing the same, and dope solution
-
Application No.: US12937183Application Date: 2009-04-09
-
Publication No.: US08684188B2Publication Date: 2014-04-01
- Inventor: Koki Taguchi , Kenichiro Igashira , Osamu Muragishi , Hideto Matsuyama , Takashi Nishino
- Applicant: Koki Taguchi , Kenichiro Igashira , Osamu Muragishi , Hideto Matsuyama , Takashi Nishino
- Applicant Address: JP Kobe-shi
- Assignee: Kawasaki Jukogyo Kabushiki Kaisha
- Current Assignee: Kawasaki Jukogyo Kabushiki Kaisha
- Current Assignee Address: JP Kobe-shi
- Agency: Marshall, Gerstein & Borun LLP
- Priority: JP2008-104036 20080411
- International Application: PCT/JP2009/001656 WO 20090409
- International Announcement: WO2009/125598 WO 20091015
- Main IPC: B01D39/14
- IPC: B01D39/14 ; B01D39/00 ; B01D33/21 ; B01D67/00 ; B29C47/00

Abstract:
A hydrophilic filtration membrane having high chemical resistance, high strength, high water permeability and high blocking performance, and being superior in fouling resistance is provided. A hydrophilic filtration membrane containing a hydrophilic polyethersulfone having a contact angle of 65 to 74 degree, a molecular weight of 10,000 to 100,000, and the number of hydroxy groups of 0.6 to 1.4 per 100 polymerization repeating units. The hydrophilic filtration membrane may additionally contain a polyvinylpyrrolidone having a molecular weight of 10,000 to 1,300,000.
Public/Granted literature
- US20110108478A1 Hydrophilic Polyethersulfone Filtration Membrane, Process for Producing the Same, and Dope Solution Public/Granted day:2011-05-12
Information query