ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,902, issued on Jan. 20, was assigned to BASF SE (Ludwigshafen Am Rhein, Germany).
"Biodegradable graft polymers" was invented by Jan Ole Mueller (Ludwigshafen, Germany), Ouidad Benlahmar (Ludwigshafen, Germany), Jessica Eleanor Bean (Ludwigshafen, Germany), Dawid Marczewski (Ludwigshafen, Germany) and Roland Boehn (Ludwigshafen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are novel graft polymers including a block copolymer backbone (A) as a graft base having polymeric sidechains (B) grafted thereon. The polymeric sidechains (B) are obtainable by polymerization of a vinyl ester monomer (B1) and optionally N-vinylpyrrolido...