CUSHIONING MATERIAL FOR HOT PRESS AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a cushioning material for a hot press capable of preventing the generation of bulge on surface caused by the bleeding of a low-molecular weight compounding agent contained in a rubber. SOLUTION: The cushioning material for the hot press is equipped with a rubber sheet 1 and the surface layer material 2 comprising a porous film formed of a heat-resistant resin laminated on at least one surface of the rubber sheet 1. The mean pore size of the porous film is not more than 10μm and the air permeability thereof is not less than 0.1 cm<3> /cm<2> .sec.