Laminate and process for producing it

摘要

A laminate comprises a non-oriented polyphenylenesulfide film and a biaxially oriented polyphenylenesulfide film bonded on at least one surface of the non-oriented polyphenylenesulfide film without using an adhesive. The delamination of the laminate can be prevented and the tear strength can be increased by suppressing the crystallization of the non-oriented polyphenylenesulfide film. The films are bonded together by thermocompression bonding at a temperature of from 180 to 270 DEG C and a pressure of from 1 to 20kg/cm<2> and cooling the bonded films to a temperature not higher than the crystallization temperature of the non-oriented film within 60 seconds.