Web-shaped laminated packaging material, a method of producing the same, and packaging containers produced from the laminated packaging material
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United States of America Patent
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Nov 6, 2001
Grant Date -
N/A
app pub date -
Oct 13, 1998
filing date -
Apr 19, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The disclosure relates to a laminated, web-shaped packaging material intended for packaging containers in which the longitudinal joint has improved gas-and liquid-tightness properties and is substantially planar. The laminated, web-shaped packaging material includes a core layer and a layer of metal or metal oxide applied on one side of the core layer, and is processed along the longitudinal edges of the web in such a manner that the metal layer is exposed from the core layer along one of the edges and the edges are then covered with outer layers of plastic.
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