| 摘要 |
PROBLEM TO BE SOLVED: To provide a separation membrane or a permeable membrane useful for aqueous solution, organic solution, electrolyte solution or biological fluid, which has a large number of micropores inside and is excellent in strength, dimensional stability, chemical resistance, thermostability. SOLUTION: (1) a polyketone porous material having 5-70 vol.% pore content of which the average pore size ranges 0.001-10μm in a polyketone molded article which is composed of a polyketone consisting of olefin-CO copolymer; (2) a polyketone hollow fiber which has at least one lengthwise vacant space of which the volume ratio if 10-80 vol.%, inside, are obtained. |
