ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,638, issued on Sept. 9, was assigned to Cryovac Inc. (Charlotte, N.C.).

"High-shrink, high-strength packaging article exhibiting directional tear" was invented by Ashley Wynne (Woodruff, S.C.), Kelly Ahlgren (Greenville, S.C.), Miles Johnston (Tega Cay, S.C.) and Rebecca Higginbotham (Greenville, S.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A packaging article comprises a heat-shrinkable film having a total free shrink at 85deg 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 ...