| 摘要 |
PURPOSE:To obtain a sheetlike porous body useful for various liquid filters or battery separators and excellent in liquid permeability and electrolyte affinity. CONSTITUTION:A sheetlike porous body is formed on an ionomer resin, which is an ion association body of zinc ionomer having a substrate of ethylene- unsaturation carboxylic acid copolymer, by means of adding inorganic filler and biaxial orientation etc. The sheetlike porous body has hydrophilic property, and is excellent in chemical stability such as alkali resistance and oxidation resistance, and formability such as folding processing. |
