Process for producing carbon preform
    12.
    发明公开
    Process for producing carbon preform 失效
    Verfahren zum Herstellen von vorgeformten Kohlenstoffgebilden。

    公开(公告)号:EP0601808A1

    公开(公告)日:1994-06-15

    申请号:EP93309722.2

    申请日:1993-12-03

    IPC分类号: C04B35/52 D01F9/15 D01F9/155

    CPC分类号: D01F9/15 C04B35/83 D01F9/155

    摘要: A simple manufacturing process for obtaining a carbon/carbon composite of superior performance is provided without using a carbon fiber fabric which is expensive and without going through the step of fixing fibers together using a binder.
    A precursor fiber for a carbon fiber which precursor fiber has been rendered infusible is subjected to uniaxial pressing at a temperature lower than the temperature adopted in the infusiblizing treatment, and then a carbonization treatment is performed.
    According to the present invention, a primary-pressed carbon material can be produced without using a binder, thus resulting in that not only the carbon material but also a carbon/carbon composite can be produced in a simple manner.

    摘要翻译: 提供了用于获得优异性能的碳/碳复合材料的简单制造方法,而不使用昂贵的碳纤维织物,并且不经过使用粘合剂将纤维固定在一起的步骤。 前体纤维已经熔化的碳纤维前体纤维在低于熔融处理所用温度的温度下进行单轴压制,然后进行碳化处理。 根据本发明,可以在不使用粘合剂的情况下制造一次压制碳材料,从而不仅能够以简单的方式制造碳材料,而且可以制造碳/碳复合材料。

    Process for preparing nitrogen containing isotropic pitch
    20.
    发明公开
    Process for preparing nitrogen containing isotropic pitch 失效
    制备含氮各向同性沥青的方法

    公开(公告)号:EP0701011A2

    公开(公告)日:1996-03-13

    申请号:EP95114130.8

    申请日:1995-09-08

    申请人: PETOCA, Ltd

    IPC分类号: D01F9/155 D01F11/14

    CPC分类号: C10C3/023 D01F9/155

    摘要: A process for preparing nitrogen-containing isotropic pitch, comprising the steps of mixing a petroleum heavy oil, a nitrating reagent and water to prepare a homogeneous dispersion, thereby contacting the petroleum heavy oil with the nitrating reagent in the homogeneous dispersion state to prepare a crude nitrated heavy oil, and subjecting the crude nitrated heavy oil to refining, thermal polymerization and vacuum distillation. According to the process of the invention, a petroleum heavy oil containing a large amount of light oil components and being liquid at ordinary temperature, from which pitch has been hardly prepared conventionally, is used as a starting material for preparing pitch, and there can be obtained nitrogen-containing isotropic pitch of homogeneity and high quality having a desired softening point of from a low softening point to a high softening point, though such pitch was unable to be obtained so far.

    摘要翻译: 一种制备含氮各向同性沥青的方法,包括下列步骤:将石油重油,硝化剂和水混合以制备均匀分散体,由此使石油重油与硝化试剂以均匀分散状态接触以制备原油 硝化重油,并将粗硝化重油进行精炼,热聚合和减压蒸馏。 根据本发明的方法,将常规温度下含有大量轻质油组分并在常温下为液体的石油类重质油用作制备沥青的起始原料,其中可以存在 获得了具有从低软化点到高软化点的期望软化点的均质且高品质的含氮各向同性沥青,尽管迄今尚未获得这种沥青。