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    MESO PHASE PITCH CONTAINING ORGANOMETALLIC COMPOUND FOR SPINNING PITCH CARBON FIBER
    1.
    发明专利
    MESO PHASE PITCH CONTAINING ORGANOMETALLIC COMPOUND FOR SPINNING PITCH CARBON FIBER 失效

    公开(公告)号：JPH1112576A

    公开(公告)日：1999-01-19

    申请号：JP80003491

    申请日：1991-12-12

    Applicant: CONOCO INC

    Inventor： ROMINE H ERNEST ,  MCCONAGHY JR JAMES R ,  RODGERS JOHN A

    IPC: C10C3/02 ,  C10C3/08 ,  C10C3/10 ,  D01F9/145

    Abstract: PURPOSE: To provide a new method for producing a unique metal-containing isotropic pitch material that is suitable for production of carbon fiber. CONSTITUTION: A soluble aromatic organometallic compound is added to a carbon starting material that is substantially defective in the meso phase pitch, the resultant mixture is subjected to the heat soaking to give the isotropic pitch containing mesogen and soluble organometallic compound. Then, the pitch products are subjected to the solvent separation to separate the mesodiene containing the metal from the organometallic compound. This metal-containing mesogen is heated up to sufficiently elevated temperature and fused to form the metal-containing mesophase pitch. In another process, the carbon starting material is thermally soaked to form isotropic pitch product containing mesogen. A high-molecular-weight soluble aromatic organometallic compound is added to the mesogen-containing isotropic pitch product, then subjected to the solvent separation. The metal-containing carbon fiber produced from the mesophase pitch shows increased stability and tensile strength. Alternatively, the solvent fractionation or separation is carried out under supercritical conditions to form metal-containing mesophase pitch. The formulation of the organometallic compound to the carbon source may be done either of before or after thermal soaking.

    PROCESS FOR ISOLATING MESOPHASE PITCH
    2.
    发明公开
    PROCESS FOR ISOLATING MESOPHASE PITCH 失效
    式分离方法的中间相

    公开(公告)号：EP0791040A4

    公开(公告)日：1998-05-06

    申请号：EP95936316

    申请日：1995-10-20

    Applicant: CONOCO INC

    Inventor： ROMINE H ERNEST ,  SOUTHARD W MARK ,  CAREL MARK W ,  NANNI EDWARD J

    IPC: C10C1/18 ,  C10C3/00 ,  C10C3/08 ,  C10G53/06 ,  C10G27/00

    CPC classification number: C10G53/06 ,  C10C3/002 ,  C10C3/08

    Abstract: The present invention provides a process for obtaining a very clean mesophase pitch from isotropic pitch. This invention utilizes a solvent fractionation process which does not involve the process steps, yield loss and waste generation associated with fluxing and filtering the isotropic pitch. Additionally, this invention provides a liquid/liquid extraction process that avoids the solids handling and the high temperatures and pressures of supercritical fluid extraction. Finally, this invention controls the hardness of the mesophase product.

    Solvating component and solvent system for mesophase pitch
    5.
    发明专利
    Solvating component and solvent system for mesophase pitch 未知

    公开(公告)号：SK442003A3

    公开(公告)日：2003-09-11

    申请号：SK442003

    申请日：2001-06-07

    Applicant: CONOCO INC

    Inventor： ROMINE H ERNEST ,  RODGERS JOHN A ,  SOUTHARD W MARK ,  NANNI EDWARD J

    IPC: C10C3/02 ,  C10C3/00 ,  C10C3/08 ,  C10G9/00 ,  C10G21/00 ,  D01F9/145 ,  C08L95/00

    Abstract: A solvating component for a solvated mesophase pitch. The solvated component includes a mixture of aromatic hydrocarbons having boiling points in the atmospheric equivalent boiling point range of about 285° to about 500° C. (about 550° F.-932° F.). At least 80% of the carbon atoms of the hydrocarbons are aromatic as characterized by carbon 13 NMR. The aromatic hydrocarbons are selected from a group consisting of aromatic compounds having 2 to 5 aromatic rings, substituted aromatic compounds having 2 to 5 aromatic rings wherein said substituents are alkyl groups having 1 to 3 carbons, hydroaromatic compounds having 2 to 5 rings, substituted aromatic compounds having 2 to 5 rings wherein said substituents are alkyl groups having 1 to 3 carbons, and mixtures thereof.

    7.
    发明专利
    未知

    公开(公告)号：DK0563225T3

    公开(公告)日：2002-06-10

    申请号：DK92902245

    申请日：1991-12-05

    Applicant: CONOCO INC

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

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

    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.

    ORGANOMETALLIC CONTAINING MESOPHASE PITCHES FOR SPINNING INTO PITCH CARBON FIBERS
    8.
    发明专利
    ORGANOMETALLIC CONTAINING MESOPHASE PITCHES FOR SPINNING INTO PITCH CARBON FIBERS 未知

    公开(公告)号：CA2055092C

    公开(公告)日：2002-01-15

    申请号：CA2055092

    申请日：1991-11-07

    Applicant: CONOCO INC

    Inventor： MCCONAGHY JAMES R JR ,  ROMINE H ERNEST ,  RODGERS JOHN A

    IPC: C10C3/02 ,  C10C3/08 ,  C10C3/10 ,  D01F9/145 ,  C10C3/00 ,  D01F9/155

    Abstract: An improved process is disclosed for producing a unique metals-containing anisotropic pitch suitable for carbon fiber manufacture. Soluble, aromatic-orgarnometallic compounds are added to a carbonaceous feedstock which is substantially free of mesophase pitch and the resulting composition is heat soaked to produce an isotropic pitch product containing mesogens and soluble, aromatic-organometallic compounds. Next, the pitch product is solvent fractionated to separate mesogens which contain metals from the organometallic compounds. The metals-containing mesogens are heated to a temperature sufficient to cause fusion to produce a metals-containing mesophase pitch. In another method, the carbonaceous feedstock is heat soaked to produce an isotropic pitch product containing mesogens and high molecular weight, soluble, aromatic-organometallic compounds are added to the mesogen containing isotropic pitch product prior to solvent fractionation. Metals-containing carbon fibers produced from the mesophase pitch exhibit enhanced stabilization, tensile strength and modulus properties. Alternatively, the solvent fractionation or separation is conducted under supercritical extraction conditions to produce a metals-containing mesophase pitch. Organometallic compounds may be added to the carbonaceous feedstock either prior to or after the heat soak step.

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