ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,648, issued on Oct. 28, was assigned to ExxonMobil Chemical Patents Inc. (Spring, Texas).
"Processes for producing mesophase pitch" was invented by Yifei Liu (Houston), Stephen T. Cohn (Spring, Texas), Jeffrey C. Yeh (Houston) and Teng Xu (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "Processes are described for producing mesophase pitch. The processes generally comprise providing a feedstock having a T5less than=400deg F. (204deg C.) and a T95less than equal to1,400deg F. (760deg C.) and heating the feedstock at a temperature ranging from about 420deg C. to about 520deg C. to produce a heat treated product including isotropic pitch. Genera...