METHOD FOR MANUFACTURING POLYOLEFIN BASED RESIN FILM

摘要

PROBLEM TO BE SOLVED: To provide a method for efficiently producing a thin polyolefin based resin film of less thickness unevenness by melt extrusion process using a T-die.SOLUTION: The polyolefin based resin film of less thickness unevenness is efficiently produced by blending 0.1 to 10 mass% of a cyclic olefin resin to the polyolefin based resin to make a polyolefin based resin composition. For reference, "thin" means a thickness of 20-150 μm and "little thickness unevenness" means thickness variation is 3% or less in MD (Moving Direction) in the center part of the film.