ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,490, issued on April 29, was assigned to LG CHEM Ltd. (Seoul, South Korea).
"Polymer production method" was invented by In Soo Kim (Daejeon, South Korea), Hyung Sub Lee (Daejeon, South Korea), Dae Woo Lee (Daejeon, South Korea), Min Cheol Ju (Daejeon, South Korea), Min Seung Shin (Daejeon, South Korea) and Sung Won Hong (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a polymer production method including: batch-adding a reaction solution including a monomer mixture including a maleimide-based monomer, a vinyl aromatic monomer, and a vinyl cyanide-based monomer and an aqueous solvent to a reactor and initiating polymer...