US Patent Issued to AMCOR FLEXIBLES NORTH AMERICA on Feb. 11 for "Stain resistant packaging film for retort applications" (Wisconsin Inventors)

ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,221,268, issued on Feb. 11, was assigned to AMCOR FLEXIBLES NORTH AMERICA INC. (Neenah, Wis.).

"Stain resistant packaging film for retort applications" was invented by James R. Lamb (Neenah, Wis.), Carol W. Umphlett (Neenah, Wis.) and Curtis R. Barr (Neenah, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "To reduce the amount of staining that occurs during the in-package retort processing of food products, a packaging film is used including a white multilayer film, the white multilayer film having a sealing region on the exposed surface of the packaging film, a white region containing white pigment and a blocking region located between the white reg...