ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,454, issued on Nov. 18, was assigned to Henkel AG & Co. KGaA (Duesseldorf, Germany).
"Water-based extrusion primer for polyethylene" was invented by Marcel Blodau (Krefeld, Germany) and Hans-Georg Kinzelmann (Pulheim, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method of manufacturing a multilayer laminate, the multilayer laminate obtained by the method according to the invention and to forming an extrusion primer for making the multilayer laminate using an aqueous coating composition comprising at least one specific copolymer."
The patent was filed on Aug. 17, 2021, under Application No. 17/445,237.
*For furt...