Abstract: The invention relates to a high-strength and brilliant quality barrier film for packing purposes, in particular for food packaging embodied in the form of a multilayer film based on of at least one carrier layer consisting of a biaxially oriented polypropylene film (PP-film) and of a functional layer based on amorphous and partially-crystalline polyamide (PA) which is produced by simultaneously stretching a primary multilayer coextruded film, wherein said polyamide functional layer consists of an external film layer and a central internal layer placed between two carrier layers. Methods for the production of the inventive film and the uses thereof are also disclosed.

Abstract: Barrier film for use in packaging, particularly for the packaging of foods and tobacco, in the form of a multi-layer film based on a biaxially oriented polyolefin film having at least one coextruded functional layer or barrier based on ethylene-vinyl alcohol copolymers (EVOH), which is produced by simultaneous drawing of a coextruded multi-layer primary film at temperatures of 145° C. and below, the ethylene content of the EVOH being below 40 mol % and the thickness of the EVOH layer being less than 5 ?m, in particular less than 2 ?m, thereby producing values for the oxygen permeability at 23° C. and 75% relative humidity (OTR; ASTM 3985) of better than 10 cm3/m2dbar, preferably better than 5 cm3/m2dbar.

Abstract: Barrier film for use in packaging, particularly for the packaging of foods and tobacco, in the form of a multi-layer film based on a biaxially oriented polyolefin film having at least one coextruded functional layer or barrier based on ethylene-vinyl alcohol copolymers (EVOH), which is produced by simultaneous drawing of a coextruded multi-layer primary film at temperatures of 145° C. and below, the ethylene content of the EVOH being below 40 mol % and the thickness of the EVOH layer being less than 5 ?m, in particular less than 2 ?m, thereby producing values for the oxygen permeability at 23° C. and 75% relative humidity (OTR; ASTM 3985) of better than 10 cm3/m2 dbar, preferably better than 5 cm3/m2 dbar.

Abstract: The invention relates to a high-strength and brilliant quality barrier film for packing purposes, in particular for food packaging embodied in the form of a multilayer film based on of at least one carrier layer consisting of a biaxially oriented polypropylene film (PP-film) and of a functional layer based on amorphous and partially-crystalline polyamide (PA) which is produced by simultaneously stretching a primary multilayer coextruded film, wherein said polyamide functional layer consists of an external film layer and a central internal layer placed between two carrier layers. Methods for the production of the inventive film and the uses thereof are also disclosed.