DIRECT PRODUCTION OF ORGANOMETALLIC COMPOUND-CONTAINING PITCH FOR SPINNING PITCH CARBON FIBER

    公开(公告)号:JPH1112577A

    公开(公告)日:1999-01-19

    申请号:JP80003691

    申请日:1991-12-25

    Applicant: CONOCO INC

    Inventor: HUGH E ROMAIN

    Abstract: PURPOSE: To obtain the subject pitch that readily can be melt-spun into carbon fibers by adding a soluble aromatic organometallic compound to the carbon starting material and treating the mixture with heat by gas sparging. CONSTITUTION: In order to obtain the objective soluble metal-containing mesophase pitch, at first a soluble aromatic organometallic compound (preferably metal porphyrin in which the metal is vanadium or nickel) is added to the graphitizable carbon starting substance, the resultant metal-containing carbon starting substance is thermally soaked by gas sparging to prepare the mesophase-containing pitch product. The mesophase pitch (anisotropic pitch) contains about 50 ppm-20,000 ppm of soluble organometallic compound. Then, the mesophase pitch is separated from the pitch product whereby carbon fiber increased in resistance to oxidation, tensile strength and stretch modulus is produced from the resultant metal-containing mesophase pitch.

    END CONTROL DEVICE FOR KINKY ROPE
    108.
    发明专利

    公开(公告)号:JPH04244635A

    公开(公告)日:1992-09-01

    申请号:JP23497691

    申请日:1991-09-13

    Applicant: CONOCO INC

    Abstract: PURPOSE: To provide a rope terminal device for mooring tension leg type offshore platform. CONSTITUTION: A terminal device is constituted by a terminal processing member 2 fixed to a tension leg, a rigid pin 8 that fibers of a rope end inserted through an opening 14 is distributed and fixed to the circumferential part, a flexible bearing member 10 for supporting this rigid pin 8 with the fiber on its circumferential part, and a rigid support member provided on the terminal processing member for supporting this bearing member. By this the rigid pin can freely rotate within the bearing member, and kink is not generated in a rope.

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