US Patent Issued to ExxonMobil Technology and Engineering on Sept. 29 for "Propylene copolymers obtained using transition metal bis(phenolate) catalyst complexes and homogeneous process for production thereof" (Texas Inventors)

Posted On: 2026-09-30

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,311, issued on Sept. 29, was assigned to ExxonMobil Technology and Engineering Co. (Baytown, Texas).

"Propylene copolymers obtained using transition metal bis(phenolate) catalyst complexes and homogeneous process for production thereof" was invented by Ru Xie (Baytown, Texas), Narayanaswami Dharmarajan (Houston), Peijun Jiang (Katy, Texas), Jun Shi (Houston), John R. Hagadorn (Houston), Jo Ann M. Canich (Houston), Sarah J. Mattler (League City, Texas) and Alexandra K. Valdez (Webster, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "This invention relates to a homogeneous process to produce propylene copolymers, such as propylene ethylene copol...

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US Patent Issued to ExxonMobil Technology and Engineering on Sept. 29 for "Propylene copolymers obtained using transition metal bis(phenolate) catalyst complexes and homogeneous process for production thereof" (Texas Inventors)