FIELD: chemistry.
SUBSTANCE: invention relates to layered material comprising an inner layer of aluminium foil, a paper middle layer and an outer layer of aluminium foil. The inner layer of aluminium foil and the middle layer are then laminated using a method selected from adhesive lamination with polyutherane, polyvinyl acetate and an acrylic adhesive, and extrusion lamination with polyethylene; and the inner layer of aluminium foil and the paper middle layer are then hardened. The paper middle layer and the outer layer of aluminium foil are laminated using a method selected from adhesive lamination with polyurethane, polyvinyl acetate and an acrylic adhesive, and extrusion lamination with polyethylene. The inner layer of aluminium foil, the paper middle layer and the inner layer of aluminium foil are then hardened.
EFFECT: while providing the given barrier properties, the obtained material enables to withstand various manufacturing and processing conditions to which the packaging is subjected.
14 cl, 2 dwg
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