US Patent Issued to Dow Global Technologies on June 23 for "Hydrocarbyl-modified methylaluminoxane cocatalyst for constrained geometry procatalysts" (Texas Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,563, issued on June 23, was assigned to Dow Global Technologies LLC (Midland, Mich.).

"Hydrocarbyl-modified methylaluminoxane cocatalyst for constrained geometry procatalysts" was invented by David M. Pearson (Lake Jackson, Texas), Dharati Joshi Koenigs (Lake Jackson, Texas) and Philip P. Fontaine (Pearland, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Processes of polymerizing olefin monomers. The process includes reacting ethylene and optionally one or more olefin monomers in the presence of a catalyst system, wherein the catalyst system comprises: hydrocarbyl-modified methylaluminoxane having less than 25 mole percent trihydrocarbyl alumi...