| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polyester film which is excellent in hydrolysis resistance, has good temporal deterioration resistance, and can hold adhesiveness to adherends over a long period, when applied to long period uses such as a solar battery use, and to provide a solar battery module having a stable power-generating performance over a long period. <P>SOLUTION: There is provided the polyester film including terminal carboxylic acid groups in an amount of ≥2 eq/t and ≤23 eq/t, carboxylic acid groups on the surfaces of the film in an amount of ≥0.005 eq/m<SP>2</SP>and ≤0.2 eq/m<SP>2</SP>, and having a thickness of ≥120 μm and ≤500 μm. <P>COPYRIGHT: (C)2011,JPO&INPIT |
