ALEXANDRIA, Va., July 16 -- United States Patent no. 12,358,938, issued on July 15, was assigned to LG Chem Ltd. (Seoul, South Korea).

"Transition metal compound and method of preparing polypropylene using the same" was invented by Insun Lee (Daejeon, South Korea), Seok Hwan Kim (Daejeon, South Korea), Byung Seok Kim (Daejeon, South Korea), Donghyeon Gwon (Daejeon, South Korea) and Seyoung Kim (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a novel transition metal compound of the following Chemical Formula 1 that exhibits excellent catalytic activity, allows formation of a macromonomer which is a polymer in which a double bond is formed at the end of a chain, and improves a...