| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a laminated polyphenylene sulfide film which is excellent in heat sealing characteristics of polyphenylene sulfide and further has improved tensile elongation and thus excellent processability. <P>SOLUTION: The laminated film comprises a biaxially oriented polyphenylene sulfide film (a B layer) having a principal constituent of a p-phenylene sulfide unit, and, laminated on at least one side thereof, a biaxially oriented copolymerized polyphenylene sulfide film (an A layer) copolymerized with at least one copolymerizing unit except for the p-phenylene sulfide unit, wherein the thickness of the A layer is not less than 5 μm and not greater than 50 μm and the elongation at break of the laminated film is 100-150%. <P>COPYRIGHT: (C)2008,JPO&INPIT |
