US Patent Issued to Dow Global Technologies on July 1 for "Polymerization of ethylene in solution processes using a Ziegler-Natta catalyst and a hydrogenation catalyst" (Chinese, American Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,344,695, issued on July 1, was assigned to Dow Global Technologies LLC (Midland, Mich.).

"Polymerization of ethylene in solution processes using a Ziegler-Natta catalyst and a hydrogenation catalyst" was invented by Linfeng Chen (Beijing), Andrew T. Heitsch (Angleton, Texas), Jeffrey A. Sims (Lake Jackson, Texas), David M. Pearson (Lake Jackson, Texas) and Kurt F. Hirsekorn (Sugarland, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "The catalyst system includes a heterogeneous procatalyst and a hydrogenation procatalyst. The heterogeneous procatalyst includes a titanium species, an aluminum species, and a magnesium chloride component. The hydrogenat...