Production of a sheetlike composite material for a dimensionally stable food or beverage product container having a barrier layer with a first ratio of its modulus of elasticity and another ratio higher and lower than 1.00

Abstract

The invention relates to a method (800, 900) comprising: a) providing a carrier layer (103) and a barrier layer (105); b) making a via (109) in the carrier layer (103); c) superimposing the barrier layer (105) onto the carrier layer (103); and d) superimposing a polymer composition H onto the barrier layer (105), thereby obtaining an inner polymer layer H (108); wherein, in method step c), the via (109) is covered by a hole coverage area (110) of the barrier layer (105); wherein, in its hole coverage area (110), the barrier layer (105) has a first ratio of its modulus of elasticity in a first barrier layer direction to its modulus of elasticity in a further barrier layer direction; wherein, outside its hole coverage area (110), the barrier layer (105) has a further ratio of its modulus of elasticity in a first barrier layer direction to its modulus of elasticity in a further barrier layer direction; wherein, in method step c), - the first ratio is greater than 1.00 and the further ratio is less than 1.00, or - the first ratio is less than 1.00 and the further ratio is greater than 1.00.

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