ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,875, issued on Nov. 25, was assigned to Borealis AG (Vienna).
"Preparation of catalyst system" was invented by Luigi Maria Cristoforo Resconi (Linz, Austria), Alexander Reznichenko (Porvoo, Finland) and Ville Virkkunen (Porvoo, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "Improved preparation process for supported catalyst systems, which comprise a specific class of metallocene complexes in combination with a boron containing cocatalyst and an aluminoxane cocatalyst and use of the new, improved catalyst system."
The patent was filed on May 20, 2020, under Application No. 17/614,742.
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