US Patent Issued to Chevron Phillips Chemical on July 8 for "Methods for making supported chromium catalysts with increased polymerization activity" (Oklahoma Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,650, issued on July 8, was assigned to Chevron Phillips Chemical Co. LP (The Woodlands, Texas).

"Methods for making supported chromium catalysts with increased polymerization activity" was invented by Max P. McDaniel (Bartlesville, Okla.) and Kathy S. Clear (Bartlesville, Okla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods for making a supported chromium catalyst are disclosed, and can comprise contacting a silica-coated alumina containing at least 30 wt. % silica with a chromium-containing compound in a liquid, drying, and calcining in an oxidizing atmosphere at a peak temperature of at least 650deg C. to form the supported chromium catalys...