Multilayer, transparent film of polyethylene terephthalate (pet) and polyethylene naphthalate pen) for the production of composite packaging with uv - protection

摘要

The present invention relates to an at least two layers made of polyester film with a total thickness of 5 - 200 μm, the - based on the mass of the total film - in addition to polyethylene terephthalate 2 - 20 w -% polyethylene naphthalate (pen), wherein at least one outer layer is less than 0,1 w -% pen (based on the mass of this outer layer) contains.