Inorganic thin film forming base material polyester film for solar cell

摘要

PROBLEM TO BE SOLVED: To obtain a base material polyester film forming an inorganic thin film for solar cell suitable for a solar cell module member that is suitable for maintaining the long term moisture-proof properties.;SOLUTION: The base material polyester film forming an inorganic thin film for solar cell has a coating layer at least on one side of a polyester film. The content of a cyclic trimer in the polyester film is 5000 ppm or less per polyester film, and the amount of cyclic trimer is 50 μg/m² or less at least on one side of the polyester film.;COPYRIGHT: (C)2012,JPO&INPIT