ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,580, issued on March 18, was assigned to Kraton Chemical LLC (Jacksonville, Fla.).

"Bio-based epoxy coating compositions and methods of preparation thereof" was invented by Michael Bulanov (Almere, Netherlands) and Patrick van Waes (Almere, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to epoxy-based compositions comprising a decarboxylated rosin acid (DCR) component, suitable as an efficient plasticizer. It further improves hardness, elasticity, UV exposure viability properties of the paint and coating compositions. The DCR increases the bio-based renewable material content of a coating formulation and provide s...