US Patent Issued to NITTO DENKO on Jan. 20 for "Water-dispersed pressure-sensitive adhesive composition and pressure-sensitive adhesive sheet" (Japanese Inventors)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,976, issued on Jan. 20, was assigned to NITTO DENKO Corp. (Ibaraki, Japan).

"Water-dispersed pressure-sensitive adhesive composition and pressure-sensitive adhesive sheet" was invented by Hiroyuki Hamada (Ibaraki, Japan), Toshihide Suzuki (Ibaraki, Japan) and Hyunhee Shim (Ibaraki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a water-dispersed PSA composition capable of bringing about greater water resistance. The water-dispersed PSA composition provided by this invention comprises an acrylic polymer as base polymer, a water-dispersed tackifier resin, and a polyacrylic acid. The polyacrylic acid has a number average molecular wei...