Hydrophilic polyethersulfone filtration membrane, process for producing the same, and dope solution
Granted 1 Apr 2014 · 2 office actions
Assignee: Kawasaki Heavy Industries, Ltd.
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Attorney: Attorney · Log in to unlock
Inventors: Hideto Matsuyama, Takashi Nishino, Osamu Muragishi, Kenichiro Igashira +1 · Examiner: Ana Fortuna · AU 1779 · TC 1700
Life of the application
11 dated eventsAbstract
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.
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12 codes- B01D33/21
- B01D39/14
- B01D39/00
- B29C47/00
- B01D67/00
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