| 摘要 |
PURPOSE: A biaxially oriented hydrolysis-stable polyester film, a producing method thereof, and a use thereof are provided to obtain a stable high viscosity rate without causing gelation, and to minimize the viscosity charge while extruding. CONSTITUTION: A biaxially oriented hydrolysis-stable polyester film contains 0.25~20wt% of epoxidized fatty acid ester, or epoxidized fatty acid glyceride system hydrolysis stabilizer, and a chain extender. The content rate of a carboxyl terminal group of the polyester is over 3 mill mol per kilograms. The color of the polyester film is white. The polyester film additionally contains an additive selected from the group consisting of an inorganic particle, an organic particle, a flame retardant, an antioxidant and others. |
