HDPE films with imbalanced biaxial orientation
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United States of America Patent
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Apr 10, 1990
Issued Date -
N/A
app pub date -
Aug 3, 1989
filing date -
Sep 28, 1987
priority date (Note) -
Expired
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Abstract
High density polyethylene (HDPE) films, preferably containing blends of HDPE resins or microcrystalline wax, are oriented up to about two times in the machine direction and six times or more in the transverse direction to give films having good dead-fold and water vapor transmission characteristics making them highly suited for packaging, particularly for dry foods when coated with or coextruded with a heat sealable layer, e.g. Surlyn.
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