| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a film for a back surface-protecting sheet for solar cells exhibiting excellent low heat shrinkage properties, weather resistance and hydrolysis resistance and high electric insulating properties, and the solar cell back surface-protecting sheet using the same. <P>SOLUTION: The polytrimethylene terephthalate film for a back surface-protecting sheet for solar cells is composed of a resin composition comprising 50-100 wt.% of polytrimethylene terephthalate, where the polytrimethylene terephthalate is a crystallized polytrimethylene terephthalate that gives an area (calorie per weight of PTT) of 0-30 J/g of an exothermic peak resulting from crystallization observed between 0 and 180°C when subjected to a temperature-rising differential thermal analysis by an input compensation type differential calorimeter. The film is used as a material of a layer constituting the solar cell back surface-protecting sheet in a solar cell module. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
