US Patent Issued to Constantia Pirk on March 17 for "Recyclable paper packaging with high barrier to water vapor and oxygen" (German, British Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,023, issued on March 17, was assigned to Constantia Pirk GmbH & Co. KG (Pirk, Germany).

"Recyclable paper packaging with high barrier to water vapor and oxygen" was invented by Achim Grefenstein (Altrip, Germany), Dudley Jones (Bristol, Great Britain) and Stefan Buttner (Neumarkt i. d. Oberpf., Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A recycling-friendly, easily producible paper packaging laminate with a high barrier against water vapor, oxygen and/or aromas, wherein a barrier film includes at least one substrate layer, a joining layer, and a barrier layer, wherein the joining layer is arranged between the substrate layer and the bar...