US Patent Issued to TOPPAN on April 7 for "Gas barrier laminate, coating liquid for producing the gas barrier laminate, packaging material, packaging body, and packaged article" (Japanese Inventor)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,345, issued on April 7, was assigned to TOPPAN INC. (Tokyo).

"Gas barrier laminate, coating liquid for producing the gas barrier laminate, packaging material, packaging body, and packaged article" was invented by Tetsuya Okano (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "High gas barrier properties can be achieved without requiring strict control for preventing entry of moisture. A coating liquid for producing a gas barrier laminate contains a carboxy group-containing polymer, polyvalent metal-containing particles, a surfactant, and an organic solvent. In the coating liquid, the carboxy group-containing polymer has a number average molecula...