| 摘要 |
PROBLEM TO BE SOLVED: To provide a biaxially stretched polyester film such that it does not cause repelling or spots of a molded member raw material or the like to various coating material due to charging of a separator film for molding various molded members such as a ceramic sheet member, an electric insulating member (electric insulating resin sheet), a sheet member for retardation film, and a sheet member for optical compensator. SOLUTION: The biaxially stretched polyester film has an area of charging transfer trace on the film surface of 5 to 30 cm<SP>2</SP>per 100 cm<SP>2</SP>. COPYRIGHT: (C)2009,JPO&INPIT |
