| abstract |
Disclosed is a polyvinylidene fluoride resin porous membrane excellent in water permeability, separation characteristics, and low fouling properties. A porous film in which a porous resin layer is laminated on a porous base material, the porous resin layer comprising a polyvinylidene fluoride resin, a polyvinylpyrrolidone resin, and a weight average molecular weight of 10,000. A porous film having a polyacrylic acid ester resin and / or a polymethacrylic acid ester resin of 200,000 or less. [Selection figure] None |