| 摘要 |
A biaxially stretched polyester film having reduced occurrences of scratches and having superior hydrolysis resistance as compared with conventional polyester films is provided. The polyester film has: a film width of 1 m or more; an intrinsic viscosity (IV) of 0.70 dL/g or greater; a pre-peak temperature measured by differential scanning calorimetry (DSC) of from 160° C. to 210° C.; and a variation in a degree of crystallinity in a film width direction of from 0.3% to 5.0%. |
