METHOD FOR PRODUCING POLYOLEFIN MICROPOROUS FILM

摘要

PROBLEM TO BE SOLVED: To provide a means for achieving high-speed continuous production and reducing shrinkage in drying for improving quality and uniformity of the quality in a method for producing a polyolefin microporous film. SOLUTION: In a drying process after extraction of the polyolefin microporous film, drying is carried out while a film/sheet width is restricted mechanically. COPYRIGHT: (C)2011,JPO&INPIT