High-shrink, high-strength multilayer film

(canceled)

A multilayer, heat-shrinkable film comprising a first film portion laminated to a second film portion, wherein:

• A) the first film portion comprises a first layer which is a first outer layer and which is a heat-seal layer, the first film portion comprising a cross-linked polymer network which has been strained by solid-state orientation;
• B) the second film portion comprises (b)(i) a second layer which is a second outer layer and which comprises polyester, and (b)(ii) a third layer which is an oxygen barrier layer comprising polyvinylidene chloride, the third layer being between the first layer and the second layer, the third layer having no crosslinked-polymer network, the second film portion having a polymer network which has been strained by solid state orientation, but the second film portion not containing a crosslinked polymer network;
• wherein the multilayer, heat-shrinkable film has a total free shrink at 85° C. of at least 90% measured in accordance with ASTM D2732, and an instrumented impact peak load strength of at least 70 Newtons/mil, measured in accordance with ASTM D3763, with the film comprising polyamide in an amount of less than 10 wt %, on a total film weight basis.

A packaging article comprising a multilayer, heat-shrinkable film comprising a first film portion laminated to a second film portion, wherein:

• A) the first film portion comprises a first layer which is a first outer layer and which is a heat-seal layer, the first film portion comprising a cross-linked polymer network which has been strained by solid-state orientation;
• B) the second film portion comprises (b)(i) a second layer which is a second outer layer and which comprises polyester, and (b)(ii) a third layer which is an oxygen barrier layer comprising polyvinylidene chloride, the third layer being between the first layer and the second layer, the third layer having no crosslinked-polymer network, the second film portion having a polymer network which has been strained by solid state orientation, but the second film portion not containing a crosslinked polymer network;
• wherein the multilayer, heat-shrinkable film has a total free shrink at 85° C. of at least 90% measured in accordance with ASTM D2732, and an instrumented impact energy-to-break of at least 0.65 J/mil, measured in accordance with ASTM D3763, with the film comprising polyamide in an amount of less than 10 wt %, on a total film weight basis, and the film is heat sealed to itself.

(canceled)