| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for forming a multilayered porous membrane having a layer-layer bonding structure, and to provide a formed membrane. <P>SOLUTION: A method for manufacturing an integrated multilayered porous membrane includes making a multilayered liquid sheet by simultaneously casting a plurality of polymer solutions on a support, separating the sheet into layers by immersing the sheet in a liquid coagulation bath, and forming the porous membrane. The support may be a temporary support or a support integrated with the membrane. The plurality of layers may be composed of the same or different polymers, may have the same or a different concentration or viscosity, and may be manufactured under the same or different processing conditions so as to form a unique structure. <P>COPYRIGHT: (C)2008,JPO&INPIT |
