Polyolefin films suitable for institutional applications
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United States of America Patent
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Jun 25, 2002
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N/A
app pub date -
Nov 16, 1999
filing date -
Nov 16, 1999
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Abstract
Polyolefin films having high oxygen transmission values are composed of blends of more than about 10% by weight to about 60% by weight of isotactic polypropylene, about 10% by weight to about 25% by weight of low density polyethylene and about 15% by weight to less than about 80% by weight of an olefin heteropolymer containing propylene and at least one other .alpha.-olefin of 2 to 4 carbon atoms having a melting point less than that of polypropylene and a density of no greater than about 0.95 g/cc.
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