Siegelfähige orientierte Polyolefin-Mehrschichtfolie, Verfahren zu ihrer Herstellung und ihre Verwendung

摘要

The invention relates to an oriented multilayer polyolefin film which comprises a base layer essentially containing polypropylene, and at least one heat-sealable top layer. The heat-sealable top layer contains from 0.1 to 0.5 % by weight of SiO2 which has been organically aftertreated and has a mean particle diameter of from 2 to 6 mu m, preferably from 4 to 5 mu m. The ratio between the mean particle diameter and the top layer thickness should be in the range from 3 to 11. The invention also relates to a process for the production of the multilayer polyolefin film and to the use of the film.