MULTI-LAYERED FILM

摘要

A multi-layered film comprising a polyolefin layer and at least one polyester or polyphenylene sulfide layer adjacent to the polyolefin layer, adhesion between the polyolefin layer and the polyester or polyphenylene sulfide layer being 0.1 to 20 g/cm and a polyolefin constituting the polyolefin layer containing 0.001 to 1 % by weight of a quaternary phosphonium salt of sulfonic acid. The multi-layered film is characterized in that a polyolefin single-layer film or a polyester or polyphenylene sulfide single-layer film can be easily peeled off from the multi-layered film and casting can be carried out at a high speed.