ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,989, issued on Oct. 6, was assigned to AMCOR FLEXIBLES NORTH AMERICA INC. (Neenah, Wis.).

"Films with retort-shock recovery" was invented by Leticia De La Vega Sudan (Londrina, Brazil) and Scott J. Kelly (Kimberly, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multilayer barrier film for food packaging comprises an outer layer comprising a retortable grade ethylene vinyl alcohol (EVOH) copolymer; a sealing layer; and one or more inner layers located between the outer layer and the sealing layer. Excellent recovery of oxygen barrier post heat processing is achieved by these films and retortable containers made therefrom."

The patent was filed...