Patent ID: 7582341
Filing Date: 2009-09-01
Classification: B32B,Y10T

Abstract:
1. A shrink-wrap packaging film comprising: a first layer comprising a sheet of elastomer in a range of between about 2.5% to about 27.5% of an overall thickness of the shrink-wrap packing film; a second layer of polyolefin comprising at least one of non-linear ethylene ethyl acetate copolymers, non-linear ethylene vinyl acetate copolymers, non-linear ethylene homopolymers, polypropylene homopolymers and propylene/ethylene copolymers, the second layer having a first surface abuttingly contacting a first surface of the first layer that comprises the sheet of elastomer, wherein the second layer is formed without a cross-linking process and is in a range of between about 45% to about 95% of the overall thickness of the shrink-wrap packaging film; and a third layer comprising a sheet of elastomer abuttingly contacting a second surface of the second layer so that the second layer is positioned between the first and third layers, wherein the third layer is in a range of between about 2.5% to about 27.5% of the overall thickness of the shrink-wrap packaging film, wherein the shrink-wrap packaging film is configured to shrink in a transverse direction in a range of about 10% to about 65% and in a machine direction in a range of about 60% to about 90%, and wherein a dart impact strength of the shrink-wrap packaging film is in a range of about 300 grams to about 1000 grams.