Co-extruded, multi-layered, biaxially oriented, weldable flat film for the production of welded tubular films and use thereof
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United States of America Patent
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Feb 7, 2006
Grant Date -
Apr 8, 2004
app pub date -
Feb 1, 2001
filing date -
Feb 1, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a coextruded, multilayered, biaxially oriented and weldable flat film for the production of welded tubular films and to the use thereof for wrapping and packaging foodstuffs. The inventive flat film has two weldable surface layers made of at least one copolyamide and at least one amorphous polyamide and/or at least one homopolyamide and/or at least one modified polyolefin.
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