US Patent Issued to DOW-MITSUI POLYCHEMICALS on March 4 for "Laminated product for flexible packaging, flexible packaging material, and flexible package" (Japanese Inventor)

ALEXANDRIA, Va., March 5 -- United States Patent no. 12,240,217, issued on March 4, was assigned to DOW-MITSUI POLYCHEMICALS Co. LTD. (Tokyo).

"Laminated product for flexible packaging, flexible packaging material, and flexible package" was invented by Hidenori Hashimoto (Chiba, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A laminated product for flexible packaging is provided, in which at least a paper substrate layer, an adhesive layer, a barrier layer, and a sealant layer are laminated in this order, the adhesive layer contains an ionomer (A) of an ethylene-unsaturated carboxylic acid copolymer, and a content of metal ions represented by XxY/100 is equal to or more than 4.0 and equal to or less th...