ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,808, issued on Aug. 11, was assigned to Henkel AG & Co. KGaA (Duesseldorf, Germany).
"Liquid moisture curable polyurethane with improved adhesion to aluminum" was invented by Yingjie Li (Batavia, Ill.) and Shuhui Qin (Palatine, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a one component, liquid, moisture curable polyurethane adhesive composition comprising the reaction products of a mixture including at least one polyol with an excess of one or more polyisocyanates and an acid component. In one embodiment some or all of the acid component is applied separately from the adhesive composition. The adhesive composition has enhanced ...