B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/32 (2006.01) B65D 65/02 (2006.01) C08J 5/18 (2006.01) C08L 23/08 (2006.01)
Patent
CA 2110093
The present invention relates to multilayer coextruded thermoplastic stretch wrap films useful for the packaging or palletizing of goods. More particularly the films of this invention comprise at least three layers having two outer layers and at least one intermediate layer placed between the outer layers. The intermediate layer includes a low melt index linear low density copolymer of ethylene and a minor amount of at least one alpha olefin having from 4 to 10 carbon atoms, the low melt index linear low density copolymer having a melt index of between about 0.5 to about 2.5. At least one of the two outer layers includes a high melt index linear low density copolymer of ethylene and a minor amount of at least one alpha olefin having from 4 to 10 carbon atoms, the high melt index linear low density copolymer having a melt index of greater than about 2.5, the high melt index linear low density copolymer containing from about 3.5 to about 15 weight percent n-hexane extractibles. The n-hexane extractibles are present in an amount sufficient to cause the stretch wrap film to exert a cling force to itself or other surfaces when used in the stretch overwrap packaging of articles.
Dobreski David Vincent
Eichbauer George Norman
Leach Michael Eugene
Covalence Specialty Materials Corp.
Dobreski David Vincent
Eichbauer George Norman
Gowling Lafleur Henderson Llp
Leach Michael Eugene
LandOfFree
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