US Patent Issued to SABIC GLOBAL TECHNOLOGIES on June 17 for "Chromium oxide catalyst for ethylene polymerization" (Dutch Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,149, issued on June 17, was assigned to SABIC GLOBAL TECHNOLOGIES B.V. (Bergen op Zoom, Netherlands).

"Chromium oxide catalyst for ethylene polymerization" was invented by Vugar Aliyev (Geleen, Netherlands) and Xiaoyu Tan (Geleen, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a solid catalyst system comprising a first chromium compound, a second chromium compound, a reaction product of an alkyl aluminium compound and a nitrogen containing compound and a silicon oxide support, wherein the first chromium compound is chromium trioxide or a compound convertible to chromium trioxide, the second chromium compound is a...