| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a porous film having uniform voids and excellent air permeability. SOLUTION: A solution containing a polymer or a precursor of the polymer and a coagulating liquid are prepared, the solution is sprayed on the coagulating liquid and the polymer or the precursor of the polymer is coagulated. COPYRIGHT: (C)2011,JPO&INPIT |
