Coextruded thermoplastic stretch-wrap

Details Coextruded thermoplastic stretch-wrap Coextruded thermoplastic stretch-wrap

1982-08-11

1983-11-29

Hess, Bruce H.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

53441, 53170, 428516, 428517, 428518, 428521, 428523, 428911, B32B 702, B32B 2708, B32B 2732, B65B 5300

Patent

active

044181140

ABSTRACT:
This present invention relates to novel coextruded thermoplastic film and the employment of such multi-layer film as stretch-wrap material for packaging of goods, including relatively large palletized loads of material. More specifically, such coextruded stretch-wrap films comprise three-layer laminations having a relatively thin skin layer and a relatively thicker core layer. Suitable skin layers include highly-branched low-densty polyethylene, and suitable core layers include linear low-density polyethylene co-polymers, such as ethylene co-polymerized with a minor amount of at least one C.sub.4 to C.sub.10 alpha-olefin, such as octene-1 and 4-methyl-pentene-1, and butene-1.

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Polyethylene, G. S. Kirshenbaum, 1976-1977, Modern Plastics Encyclopedia, pp. 65, 66, 68, 70 and 73.

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