ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,958, issued on Feb. 17, was assigned to Covestro Deutschland AG (Leverkusen, Germany).
"Two-component outer coating containing polyaspartic acid esters" was invented by Dorota Greszta-Franz (Solingen, Germany), Jan Weikard (Leverkusen, Germany), Matthias Wintermantel (Hurth, Germany), Robert Reyer (Langenfeld, Germany) and Thomas Schuettler (Cologne, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to two-component topcoat systems comprising polyaspartic esters that contain only small amounts of dialkyl fumarates, to a process for the production thereof and for the use thereof in the production of coatings, in par...