Composite stretch wrap film
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United States of America Patent
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Mar 13, 1984
Issued Date -
N/A
app pub date -
Dec 1, 1982
filing date -
Feb 2, 1980
priority date (Note) -
Expired
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Abstract
A composition adapted for processing into stretch wrap film. The composition comprises between about 40 and about 90% by weight of a high molecular weight copolymer of ethylene and vinyl acetate containing between about 4 and about 25% by weight of repeating units derived from vinyl acetate and having a melt index of between about 0.1 and about 4.0. The composition further comprises between about 8 and about 55% by weight of a linear copolymer of ethylene and a higher alkene. Such linear copolymer has a specific gravity of between about 0.917 and about 0.945. The invention further includes stretch wrap film, a method of producing stretch wrap film of differential cling properties, and a composite film constituted of a layer of the aforesaid ethylene vinyl acetate copolymer and a layer of the liner copolymer of ethylene and a higher alkene.
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