| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an adhesive polyester film for a backside protective material of a solar cell which is a colored base film exhibiting excellent hydrolysis resistance, and exhibits excellent hydrolysis resistance to EVA, PVB, or the like, used as a sealing material of a solar cell. <P>SOLUTION: The polyester film for the backside protective material of a solar cell includes a color pigment in a polyester film where the amount of terminal carboxyl groups is 26 equivalent/ton or less and has, at least on one side of the film, a coating layer containing polyurethane which has a polycarbonate skeleton or a polyether skeleton, and a crosslinking agent. <P>COPYRIGHT: (C)2012,JPO&INPIT |
