US Patent Issued to THE UNIVERSITY OF AKRON on July 21 for "Waterborne one component non-isocyanate polyurethane epoxy hybrid coatings" (Ohio, Colorado Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,789, issued on July 21, was assigned to THE UNIVERSITY OF AKRON (Akron, Ohio).

"Waterborne one component non-isocyanate polyurethane epoxy hybrid coatings" was invented by Qixin Zhou (Copley, Ohio), Cheng Zhang (Lakewood, Colo.) and Zichen Ling (Akron, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of preparing a composition for a one-package (1 K) waterborne non isocyanate polyurethane epoxy hybrid coating includes providing a cyclic carbonate; combining the cyclic carbonate with an internal emulsifier and a diamine to thereby obtain a non-isocyanate polyurethane (NIPU) prepolymer; subjecting the NIPU prepolymer to chain extension by ...