ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,437, issued on March 17, was assigned to NITTO DENKO Corp. (Ibaraki, Japan).
"Pressure-sensitive adhesive sheet" was invented by Amane Sawamura (Osaka, Japan) and Shuhei Yamamoto (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pressure-sensitive adhesive sheet 1 includes a plastic substrate 2, an adhesion-facilitating layer 3, and a pressure-sensitive adhesive layer 4 in the order in which they appear toward one side in a thickness direction. The adhesion-facilitating layer 3 includes an adhesive composition containing a polyester component and an oxazoline component. The pressure-sensitive adhesive layer 4 contains a water-dispersib...