US Patent Issued to ProAmpac Holdings on May 5 for "Paper-based multilayer packaging materials and methods" (American, Canadian Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,617,568, issued on May 5, was assigned to ProAmpac Holdings Inc. (Cincinnati).

"Paper-based multilayer packaging materials and methods" was invented by Amir Saffar (Laval, Canada), Raymond J. Recchia (Cincinnati), Terry J. Leis (Huntington, Mass.) and Seyed Hesamoddin Tabatabaei (Mason, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multilayer packaging material includes a substrate formed of a cellulosic fiber-based material. The substrate has a first major surface and a second major surface opposite the first major surface. An oxygen barrier layer is formed of a PVOH material attached to the substrate, wherein the oxygen barrier layer is an inner...