ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,584, issued on May 26, was assigned to BASF COATINGS GMBH (Muenster, Germany).
"Waterborne polyurethane-epoxy resin based primer composition and its preparation method thereof" was invented by Yu Bo Zhang (Pudong, China), Pei Hai Cong (Pudong, China), Benjamin Delespierre (Guangzhou, China) and Qi Yun Zhou (Pudong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is a waterborne polyurethane-epoxy resin-based primer composition and its preparation method. Further disclosed herein is a primer layer obtained from curing the waterborne polyurethane-epoxy resin-based primer composition on substrates as well as a method of curing the ...