US Patent Issued to LG CHEM on June 17 for "Method of preparing maleimide-based copolymer" (South Korean Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,144, issued on June 17, was assigned to LG CHEM Ltd. (Seoul, South Korea).

"Method of preparing maleimide-based copolymer" was invented by Min Seung Shin (Daejeon, South Korea), Min Cheol Ju (Daejeon, South Korea), Sung Won Hong (Daejeon, South Korea), In Soo Kim (Daejeon, South Korea) and Hyung Sub Lee (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method of preparing a maleimide-based copolymer, which comprises adding a monomer mixture including an aromatic vinyl-based monomer and a maleimide-based monomer to an aqueous solution consisting of an aqueous solvent and a first vinyl cyanide-based monomer and perform...