| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a composite separation membrane excellent in various properties such as water permeability, chemical strength, physical strength, etc. <P>SOLUTION: In the method for manufacturing the composite separation membrane by coating the surface of a layer 1 substantially comprising a resin A with a resin B solution and laminating the layer 1 with a layer 2 substantially comprising resin B, the surface of the layer 1 is coated with a poor solvent which is the poor solvent of the resin A but mixable with the resin B solution and subsequently coated with the resin B solution containing a good solvent of the resin A. Next, the resin B solution is coagulated by immersing the coated layer 1 in the non solvent of the resin B to laminate the layer 2 on the layer 1. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
