| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a biaxially oriented polyester film for a backside protective film of a solar cell capable of maintaining high hydrolysis resistance over a long period of time while having excellent heat resistance without extricating an isocyanate compound, and to provide the backside protective film of the solar cell. <P>SOLUTION: A biaxially oriented polyester film for a backside protective film of a solar cell comprises a polyester composition containing a compound (C component) containing at least a cyclic structure having one carbodiimide group whose first nitrogen and second nitrogen are linked through a linking group. <P>COPYRIGHT: (C)2012,JPO&INPIT |
