Cryovac, Inc.

Rebecca Higginbotham

Ashley Wynne

Miles Johnston

Kelly Ray Ahlgren

Kelly Ahlgren

A packaging article comprises a heat-shrinkable film having a total free shrink at 85° C. of at least 90%. The film has an inside seal layer, an outside polyester layer, and an inner oxygen barrier layer. A portion of the film contains a crosslinked polymer network. At least one film layer comprises an incompatible polymer blend. The article has tear initiators. The package provides post-shrink, full-length tear from the tear initiators to the opposite edge of the article, for easy product removal. The film has an instrumented impact energy-to-break of at least 0.65 J/mil, and/or an instrumented impact peak load strength of at least 66 Newtons/mil, and/or Truburst strength of at least 8 psi/mil.

High-shrink, high-strength packaging article exhibiting directional tear

A heat-shrinkable film comprises a blend of 35-75 wt % of an ethylene-based polymer, 10-45 wt % of an ethylene/unsaturated ester copolymer, and 5-30 wt % of a plastomer, with the blend making up at least 20 wt % of the film. The ethylene-based polymer has a peak melt point &#x2265;95&#xb0; C. The plastomer has a peak melt point &#x2264;90&#xb0; C. and a melt index of &#x2264;1.1 g/10 min. The film comprises a cross-linked polymer network which has been strained by solid state orientation. The film has a total free shrink at 85&#xb0; C. of at least 90% and an energy-to-break of at least 0.70 J/mil.

Growing community of inventors

Greenville, SC, United States of America

Rebecca Higginbotham