ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,389, issued on Nov. 18, was assigned to Columbia Insurance Co. (Omaha, Neb.).
"Bio-based monomers and polymers made therefrom" was invented by Richard Geurtsen (Robbinsville, N.J.), Yong Yang (Hillsborough, N.J.), Gary Dandreaux (River Edge, N.J.) and Cristian Grigoras (Suffern, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is a frambinone methacrylate (FMA) or raspberry ketone methacrylate (RKMA) monomer having the following structure:and a zingerone methacrylate (ZMA) having the following structure Also disclosed are homopolymers and co-polymers utilizing same monomer. Also disclosed is a class of methacrylate monomers compr...