1. Field of the Invention
The present invention relates to a film combination or multilayer film with at least two layers, for particular use as a release film for membranes that contain oil.
2. The Prior Art
A large number of different film combinations have been disclosed. The problem with them, however, is either that the combinations do not have any barrier properties against oils, mineral oils in particular, or that they are not very stable, i.e. they are susceptible to tearing, have poor tear propagation properties or are not very thermally and/or mechanically stable.