ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,180, issued on March 17, was assigned to Kraton Chemical LLC (Jacksonville, Fla.).

"Fertilizer coating compositions and methods of preparation thereof" was invented by Gerald Heebner (Savannah, Ga.) and Lloyd Nelson (Savannah, Ga.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to fertilizer coating compositions and methods for making thereof. The fertilizer coating comprises a decarboxylated rosin acid (DCR) component, optional bitumen and other additives. The DCR has a Kb value of 25-90, a density of 0.9 to 1.0 g/cm3 at 20deg C., an aniline point of 3-40deg C., and an acid value of greater than50 mg KOH/g. The fertilizer coa...