Packaging material with good gas barrier properties and also pac

Details Packaging material with good gas barrier properties and also pac Packaging material with good gas barrier properties and also pac

1994-03-18

1996-02-06

Lesmes, George F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283175, 4283177, 4283191, B32B 326

Patent

active

054894727

ABSTRACT:
Packaging material with good gas barrier properties comprising a skeletal layer and a gas barrier layer of a material with low elasticity, e.g. Al foil, which is placed against one side of the skeletal layer and which is bound to the skeletal layer with the aid of an intermediate layer of binding agent.
The layer of binding agent consists of a compressible material, preferably an expanded or foamed polyolefin, which is arranged to compress with the aim of reducing the tensile strains acting on the Al foil when the material is shaped by folding during manufacture of the packaging.

REFERENCES:
patent: 4234647 (1980-11-01), Murphy et al.
patent: 4321297 (1982-03-01), Adelman
patent: 4331725 (1982-05-01), Akao
patent: 4424260 (1984-01-01), Pupp
patent: 4511078 (1985-04-01), Rauser et al.
patent: 4565733 (1986-01-01), Akao
patent: 4590126 (1986-05-01), Andersson
patent: 4594292 (1986-06-01), Nagai et al.
patent: 4994310 (1991-02-01), Frisk et al.

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