MANUFACTURING METHOD OF POROUS SHEET AND POROUS SHEET MANUFACTURED BY THE METHOD

摘要

PURPOSE: A producing method of a porous sheet using supercritical fluid, and the porous sheet manufactured therefrom are provided to improve the uniformity of the porous sheet. CONSTITUTION: A producing method of a porous sheet using supercritical fluid comprises the following steps: producing a polymer resin sheet containing a base resin, and soft polymer particles with the hardness lower than the base resin; and forming pores on the polymer resin sheet by inserting the supercritical fluid to the polymer resin sheet and foaming.