| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an easily adhesive polyester film for optical uses. <P>SOLUTION: The easily adhesive polyester film for optical uses is prepared by using a biaxially oriented polyester film containing an antimony compound, an alkaline earth metal compound and a phosphorus compound and having a thickness of 50μm as a base material and forming an easily adhesive polymer layer on at least one surface of the base material. In the easily adhesive polyester film for optical uses, a polyester as a main raw material for the base material substantially contains no particle and has a melt specific resistance at 275°C of 0.15-0.45 (×10<SP>8</SP>Ωcm). When the polyester is dissolved in a solvent and after the solution is filtered through a membrane filter with a mean pore diameter of 0.1μm, the alkaline earth metal content and the antimony content in the residue on the filter are respectively≤1 mg per 1 kg polyester as the main raw material for the base material. <P>COPYRIGHT: (C)2004,JPO</p> |
