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Title:
METHOD FOR PRODUCING COMPOSITE SEMIPERMEABLE MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2013/161852
Kind Code:
A1
Abstract:
The object of the present invention is to provide a method for the stable production of a composite semipermeable membrane with which there are few skin layer defects and the filter rate is high. The present invention is characterized in that a method for producing a composite semipermeable membrane wherein a skin layer is formed on the surface of a porous substrate comprises a step for impurity removal with which, before the skin layer is formed on the surface of the porous substrate, the impurities that adhere to the surface of the porous substrate are removed.

Inventors:
NISHI MIEKO (JP)
NISHIYAMA SHINYA (JP)
Application Number:
JP2013/062005
Publication Date:
October 31, 2013
Filing Date:
April 24, 2013
Export Citation:
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Assignee:
NITTO DENKO CORP (JP)
International Classes:
B01D69/12; B01D69/10; B01D71/56; B05D3/00; B05D7/00; C08G69/28
Domestic Patent References:
WO2010062794A12010-06-03
Foreign References:
JPH05317667A1993-12-03
JP2011056433A2011-03-24
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
Patent business corporation ユニアス international patent firm (JP)
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