Stretch wrap films

Details Stretch wrap films Stretch wrap films

1996-03-12

1998-09-29

Nakarani, D. S.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

428213, 428218, 428515, 428516, B32B 702, B32B 2732

Patent

active

058143998

ABSTRACT:
The present invention provides for improved thermoplastic stretch wrap films having superior cling force, load retention, elongation, tear resistance and puncture resistance properties and for the methods of using those stretch wrap films. The stretch wrap films generally have a thickness of from about 0.4 to about 3 mils. The stretch wrap films are preferably constructed in a multilayer fashion having outside cling layers, and at least one inside puncture resistant layer comprising a metallocene-catalyzed polyethylene resin and at least one inside transverse direction tear resistant layer comprising a polyethylene copolymer.

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"Advantages of Metallocene Ethylene Polymer Resins in Blown and Cast Stretch Films", Research Disclosure, Aug. 1995, pp. 539-545.

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