Multi-layer coextruded polyolefin stretch wrapped plurality of g

Details Multi-layer coextruded polyolefin stretch wrapped plurality of g Multi-layer coextruded polyolefin stretch wrapped plurality of g

1993-09-14

1995-07-11

Sluby, P. C.

Special receptacle or package

With pallet feature

Binder wrap for content

53441, 428218, 428516, 428911, 428913, 206386, 264171, 264514, 264173, B65D 1900, B65B 5300

Patent

active

054312841

ABSTRACT:
The present invention relates to novel multi-layer 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 is formed from a high pressure low density polyethylene resin and the outer layers are formed from a linear low density polyethylene copolymer such as ethylene copolymerized with a minor amount of at least one C.sub.4 to C.sub.10 alpha-olefin, such as hexene-1, octene-1, decene-1, 4-methyl-pentene-1 and butene-1. The force required to stretch the novel films of this invention may be controlled by the thickness of the intermediate layer relative to overall film thickness, the melt index of the intermediate layer resin, the molecular weight of the intermediate layer resin or a combination thereof.

REFERENCES:
patent: 4436788 (1984-03-01), Cooper
patent: 4820589 (1989-04-01), Dobreski et al.
patent: 5019315 (1991-05-01), Wilson
patent: 5248547 (1993-09-01), Wilson

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