▎ 摘　　要

NOVELTY - Multilayer film (10) comprises a first layer (11) and a second layer (12) made of a plastic material coupled to each other and at least one layer having gas-barrier properties between the first layer and the second layer, where the layer having gas-barrier properties comprises graphene and/or its derivative and coats a coupling surface (11a, 12a) of at least one of the first layer and the second layer in a discontinuous manner. USE - The multilayer film is used in container or a package (claimed) for packaging food or pharmaceutic products. ADVANTAGE - The multilayer film has excellent gas-barrier characteristics, preferably oxygen-barrier characteristics, and ensures excellent adhesion between the layers so as to prevent separation over time, and is recyclable after use. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for producing the multilayer film, involving (a) forming a first layer and a second layer made of plastic material, (b) forming a first gas-barrier layer of discontinuous coating on a coupling surface of the first layer, made of plastic material, where the first layer of discontinuous coating comprises graphene and/or its derivative and optionally at least one phyllosilicate and/or a hydrotalcite, (c) optionally forming a second gas-barrier layer of discontinuous coating on a coupling surface of the second layer made of plastic material, where the second layer of discontinuous coating comprises graphene and/or its derivative and optionally at least one phyllosilicate and/or a hydrotalcite, and (d) coupling the first layer made of plastic material carrying the first layer of discontinuous coating with the second layer made of plastic material possibly carrying the second layer of discontinuous coating so as to arrange the first layer of discontinuous coating and the second layer of discontinuous coating, if present, between the first layer and the second layer made of plastic material. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the multilayer film. 10Multilayer film 11First layer 11a, 12aCoupling surface 12Second layer 13Discontinuous coating layer 14Adhesive layer