The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 2026
Filed:
Apr. 20, 2022
Applicant:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Inventors:
Yifei Liu, Houston, TX (US);
Teng Xu, Houston, TX (US);
Stephen T. Cohn, Spring, TX (US);
Jeffrey C. Yeh, Houston, TX (US);
Assignee:
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10C 3/08 (2006.01);
U.S. Cl.
CPC ...
C10C 3/08 (2013.01);
Abstract
A process for producing mesophase pitch, the process including: contacting an isotropic pitch with a solvent under conditions sufficient to produce a solvent fraction comprising the solvent and an insoluble fraction comprising mesophase pitch; and recovering the mesophase pitch, wherein the contacting includes the solvent having a Solubility Blending number (S) that causes the mesophase pitch to have a softening point ranging from 270° C. to 350° C., as measured in accordance with ASTM D3104-14.