Multi-layer biaxially oriented polypropylene film having an improved barrier, a method for the production thereof, and the use thereof
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United States of America Patent
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Nov 2, 2004
Grant Date -
N/A
app pub date -
Feb 8, 2001
filing date -
Aug 13, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a multi-layer, sealable, biaxially oriented polypropylene film having improved barrier properties which is constructed of a base layer, of at least one sealable covering layer and of at least one intermediate layer. The intermediate layer contains a wax with an average molecular weight Mn ranging from 200 to 1200. The invention also relates to a method for producing the film and to the use thereof.
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