Title:
MANUFACTURING METHOD OF SEPARATION MEMBRANE
Document Type and Number:
Japanese Patent JP2009202134
Kind Code:
A
Abstract:
To provide a simple method for precisely controlling the fractionation performance of a separation membrane without modifying the separation membrane.
In the manufacturing method of a separation membrane formed by dissolving a polymer to form a dope raw liquid, obtaining a film-like matter by solidification, washing the film-like matter and drying it, an aqueous solution containing 0.1-40 wt.% of a solute with the vapor pressure at 20C of 0.005-1000 Pa and a surface tension of 44-60 mN/m is impregnated into the film-like matter.
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Inventors:
SHIMOYAMA SHIRO
TANAHASHI KAZUHIRO
TANAHASHI KAZUHIRO
Application Number:
JP2008049439A
Publication Date:
September 10, 2009
Filing Date:
February 29, 2008
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
B01D69/00; B01D71/38; B01D71/40; B01D71/44; B01D71/68