Packaging material of laminate type

Details Packaging material of laminate type Packaging material of laminate type

1990-10-16

1992-07-28

Buffalow, Edith L.

Stock material or miscellaneous articles

Hollow or container type article

Paper containing

426106, 428 367, 428349, 428335, 428511, 428520, 4285375, B29D 2200

Patent

active

051339994

ABSTRACT:
A flexible, laminated material (10) for reforming into packages for contents of the type such as oxygen- and flavor-sensitive liquid foods, for example fruit juices.
The material displays a carrier layer (11) of paper or paperboard and a preferably extruded layer (13) applied to one face of the carrier layer (corresponding to the inside of the finished package), this layer consisting of a mixture of polyethylene and ethylene vinyl alcohol copolymer.
Since the barrier layer (13) thus includes both a polar (the ethylene vinyl alcohol copolymer) and a non-polar (polyethylene) component, the material possesses barrier properties against both polar and non-polar flavor components, at the same time as the material moreover displays tightness properties vis-a-vis oxygen.

REFERENCES:
patent: 3882259 (1975-05-01), Nohara et al.
patent: 4082854 (1978-04-01), Yamada et al.
patent: 4701360 (1987-10-01), Gibbons et al.
patent: 4789575 (1988-12-01), Gibbons et al.
patent: 4894267 (1990-01-01), Bettle, III et al.
patent: 4971864 (1990-11-01), McCord
patent: 4988546 (1991-01-01), Tanner et al.

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