Opaque, matt, biaxially oriented polypropylene multilayered film, process for its manufacture and its use

摘要

The invention relates to an opaque, multilayer polypropylene film which comprises at least one base layer containing polypropylene or a polypropylene mixture and fillers, and at least one top layer containing a mixture or blend of two components I and II. Component I essentially comprises a propylene homopolymer or a copolymer of an alpha -olefin having 2 to 10 carbon atoms or a terpolymer of an alpha -olefin having 2 to 10 carbon atoms or a mixture of two or more of said homopolymers, copolymers and terpolymers or a blend of two or more of said homopolymers, copolymers and terpolymers. Component II essentially comprises an HDPE having an MFI (50 N/190@C) of from greater than 1 to 50 g/10 min, measured in accordance with DIN 53 735, or a blend of two blend components A and B. Blend component A is essentially an HDPE having an MFI (50 N/190@C) of from greater than 1 to 50 g/10 min, measured in accordance with DIN 53 735. Blend component B is essentially a propylene homopolymer or a copolymer of an alpha -olefin having 2 to 10 carbon atoms or a terpolymer of an alpha -olefin having 2 to 10 carbon atoms or a mixture of two or more of said homopolymers, copolymers and terpolymers or a blend of two or more of said homopolymers, copolymers and terpolymers. The film is matt. The invention also relates to a process for the production of the multilayer polypropylene film and to the use of the film.