| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hydrolysis-resistant polyester film having a low acid value by suppressing the increase of the acid value when forming the film. <P>SOLUTION: The hydrolysis-resistant polyester film includes 0.03-6.7 eq./ton of a hindered phenol structural unit in the polyester resin composition constituting the film, and has <25 eq./ton of the acid value of the polyester constituting the film, >0.64 dL/g and ≤0.90 dL/g of the intrinsic viscosity and 0.7-1.3 of the apparent specific gravity of the film. <P>COPYRIGHT: (C)2012,JPO&INPIT |
