| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a modified polyolefin microporous membrane which is improved in dimensional stability, even in a temperature range exceeding a heat treatment temperature in a heat treatment performed in formation of a polyolefin microporous membrane.SOLUTION: A method for producing a modified polyolefin microporous membrane includes: impregnating a microporous membrane (A) composed of polyolefin with a solvent (B) which has a surface tension at 25°C of 25 mN/m or more and does not dissolve the polyolefin; and then removing the solvent (B). |
