ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,227,618, issued on Feb. 18, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).
"Polyalkyleneimine-based polymer containing polyether chains" was invented by Huiguang Kou (Ludwigshafen am Rhein, Germany), Steffen Onclin (Ludwigshafen am Rhein, Germany), Anna Maria Mueller-Cristadoro (Lemfoerde, Germany) and Clemens Auschra (Ludwigshafen am Rhein, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The presently claimed invention relates to polyalkyleneimine-based polymers that are useful as dispersants and a process for the preparation thereof. The presently claimed invention is also directed to dispersants that are useful in solvent-based disp...