公开(公告)号：MX9102728A

公开(公告)日：1992-06-01

申请号：MX9102728

申请日：1991-12-20

Applicant: CONOCO INC

Inventor： KALBACK WALTER M ,  ROMIE H ERNEST ,  BOURRAT XAVIER M

IPC: C10C3/00 ,  C10C3/02 ,  C10C3/08 ,  D01F9/145 ,  D01F9/15 ,  D01F9/155 ,  C08J11/04

Abstract: This invention relates to low melting solvated mesophase pitches which are suitable for spinning into carbon fibers. The solvated mesophase pitches have a lower melting point than conventional mesophase pitch but remain substantially anisotropic. The solvated mesophase can be produced as an intermediate during solvent fractionation or supercritical solvent fractionation of mesogen-containing isotropic pitches. The process is enhanced through the ability to recover pseudomesogens with an increased average molecular weight which, in combination with the solvent content, provides a fusible mesophase capable of being spun directly into infusible oriented anisotropic carbon fibers.