| 摘要 |
<p>A single- or multi-layer biaxially oriented film based on a crystallizable polyester comprises primary stabilizer(s) for inhibiting oxidative degradation. The crystallizable polyester comprises primary stabilizer (100-10000 parts per million (ppm)) in covalently bonded form. Independent claims are also included for the following: (1) a method for producing the film, comprising extruding molten polyester materials through a slot die and quenching them in the form of a substantially amorphous prefilm on a chill roll, and reheating the prefilm and orienting it longitudinally and transversely, or transversely and longitudinally, or longitudinally, transversely, and longitudinally and/or transversely and, where appropriate, heat-setting; and (2) a method of making a thermal transfer ribbon, a packaging material, a magnetic tape film, a stamping film, a release film, lid film, a capacitor film or insulating material, comprising transforming the film into a thermal transfer ribbon, a packaging material, magnetic tape film, stamping foil, release film, lid film, capacitor film or insulating material.</p> |
