公开(公告)号：US20240209208A1

公开(公告)日：2024-06-27

申请号：US18279805

申请日：2021-11-10

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Ozcan Altintas ,  Justin P. Romaire ,  Jihad M. Dakka ,  Renyuan Yu ,  Anthony S. Mennito ,  Brandon M. Carcuffe ,  Teng Xu

IPC: C08L95/00

CPC classification number: C08L95/00 ,  C08L2555/74

Abstract: Isotropic pitch compositions may be obtained by reacting an aromatic feedstock comprising one or more aromatic classes with formaldehyde or paraformaldehyde under acidic conditions. Isotropic pitch compositions may comprise: at least two monomers linked with at least one methylene bridge between each one of the at least two monomers, wherein each one of the at least monomers comprises one or more aromatic classes comprising one or more 5-membered rings, 6-membered rings, and any combination thereof; and wherein the isotropic pitch composition has a weight average molecular weight (Mw) of about 300 g/mol to about 1,500 g/mol, a softening point (Tsp) of 90° C. or greater, and a micro carbon residue (MCR) of about 18 wt % or greater, based on the total weight of the isotropic pitch composition.