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公开(公告)号:AU9126291A
公开(公告)日:1992-07-22
申请号:AU9126291
申请日:1991-12-05
Applicant: CONOCO INC
Inventor: KALBACK WALTER M , ROMINE H , BOURRAT XAVIER M
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.