US Patent Issued to Chevron Phillips Chemical on Sept. 15 for "Tandem alkane metathesis and catalyzed depolymerization for chemically complex circular feedstock" (Texas Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,549, issued on Sept. 15, was assigned to Chevron Phillips Chemical Co. LP (The Woodlands, Texas).

"Tandem alkane metathesis and catalyzed depolymerization for chemically complex circular feedstock" was invented by Cori A. Demmelmaier-Chang (Houston), Mark L. Hlavinka (Kingwood, Texas), Orson Sydora (Sugar Land, Texas), Sikander Hakim (Kingwood, Texas), Jeffery Gee (Kingwood, Texas), Joseph Bergmeister (Spring, Texas), Gabriela Alvez (Kingwood, Texas) and Steven S. Lim (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tandem polyolefin depolymerization-metathesis process and system for converting polymer waste to smaller hydrocarbons, specif...