ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,636, issued on March 18, was assigned to Henkel AG & Co. KGaA (Duesseldorf, Germany).
"Two-component solvent free polyurethane laminating adhesive composition" was invented by Nan Zhang (Shanghai), Jingjing Liang (Shanghai), Guan Yew Low (Shanghai) and Grant Kenion (Easton, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a two-component solvent free polyurethane adhesive composition, comprising: (A) a OH-containing component, and (B) an NCO-containing component; wherein the mass ratio between the OH-containing component (A) and the NCO-containing component (B) is greater than 1:1, and the molar ratio between the OH...