| 摘要 |
<p>A white, biaxially oriented polyester film has a base layer B, which comprises a thermoplastic polyester, where the R value of the film is smaller than 43 daN/mm2, the emax ratio of the film is smaller than 2.5, and at least 1 of the two surfaces of the film is provided with an acrylate-containing coating. An Independent claim is also included for a process of producing a polyester film, comprising producing a single or multilayer film by extrusion or coextrusion, and shaping the melts to give flat melt films; coating the film with an acrylate-containing coating; biaxial stretching of the film; and heat-setting of the stretched film.</p> |
