| 摘要 |
Sterilizable packaging container of plastic/metal/plastic composite material having a proportional thickness of metal of less than 20% of the total thickness of the composite material, produced by forming, of a composite material, containing a first plastic layer of from 0.006 to 0.05 mm in thickness having high extensibility and at the same time having high strength, as well as increasing strengthening during deforming and a second sealable plastic layer of from 0.1 to 0.8 mm in thickness having high extension and high load-bearing capacity during forming and a metal layer located between the plastic layers having a thickness of 0.006 to 0.1 mm of aluminium with an aluminium content of 98% or more or of an aluminium alloy, the first plastic layer serving as extension promoter for the metal layer and being quasi-isotropic, and the second plastic layer containing, if appropriate, 10 to 70% by volume, referred to the second plastic layer, of fillers.
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