| 摘要 |
PROBLEM TO BE SOLVED: To inexpensively provide a polyester stretched film having good tear properties and adhesiveness without losing strength, transparency, heat resistance, barrier properties, etc. and useful as a packaging film, a film for a tape, the opening port of a PTP pack or a beverage pack or an exterior material of gum or candy. SOLUTION: This easy tear biaxially stretched polyester film excellent in adhesiveness is characterized in that its adhesive layer comprises a layer having crystallinity composed of a mixture of a crystalline polyester resin and an amorphous polyester resin and its thrust strength is 2.0-8.0 N. COPYRIGHT: (C)2007,JPO&INPIT |
