| 摘要 |
<p>A single- or multilayer, white, biaxially oriented polyester film, comprises thermoplastic polyester and a coating on at least one side, where the R value of the film is smaller than 43 daN/mm2, the emax ratio of film is smaller than 2.5, and the coating on one or both surface(s) of film is adhesion-promoting, steam-sterilization-resistant layer composed of a hydrolyzed amino-functional silane. - Independent claims are also included for: - (A) a process for the production of a polyester film, comprising producing a single- or multilayer film via extrusion or coextrusion and shaping the melts to give flat melt films; coating of film with a water-soluble adhesion promoting coating; biaxially stretching the film in the machine direction and the transverse direction; and heat-setting the stretched film, where the coating process takes place prior to, during, or after the biaxial stretching process; and - (B) packaging film for foods and for other consumable items comprising the polyester film.</p> |
