6.
    发明专利
    未知

    公开(公告)号:NO994914L

    公开(公告)日:1999-10-08

    申请号:NO994914

    申请日:1999-10-08

    Applicant: CONOCO INC

    Abstract: The present invention provides a process for thermosetting pitch fibers in reduced times, at low concentrations of oxygen and at higher temperatures than previously possible. Additionally, the present invention provides a pitch fiber which has an oxygen diffusion rate to the center of the fiber which is competitive with the rate of oxidation at the fiber's surface. Further, the present invention provides a high density pitch fiber batt which thermosets without loss of fiber structure.

    10.
    发明专利
    未知

    公开(公告)号:TR199902448T2

    公开(公告)日:2000-01-21

    申请号:TR9902448

    申请日:1998-04-01

    Applicant: CONOCO INC

    Abstract: The present invention provides a process for thermosetting pitch fibers in reduced times, at low concentrations of oxygen and at higher temperatures than previously possible. Additionally, the present invention provides a pitch fiber which has an oxygen diffusion rate to the center of the fiber which is competitive with the rate of oxidation at the fiber's surface. Further, the present invention provides a high density pitch fiber batt which thermosets without loss of fiber structure.

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