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    A method for the production of a carbon fiber precursor
    2.
    发明授权
    A method for the production of a carbon fiber precursor 失效
    一种生产碳纤维前体的方法

    公开(公告)号：US4756818A

    公开(公告)日：1988-07-12

    申请号：US18200

    申请日：1987-02-24

    申请人： Siegfried Peter ,  Herbert Beneke ,  Franz Oeste ,  Wolfgang Fexer ,  Wolfgang Jaumann ,  Manfred Meinbreckse ,  Joachim Kempfert

    发明人： Siegfried Peter ,  Herbert Beneke ,  Franz Oeste ,  Wolfgang Fexer ,  Wolfgang Jaumann ,  Manfred Meinbreckse ,  Joachim Kempfert

    IPC分类号： C10C3/02 ,  C08L95/00 ,  C10C1/04 ,  C10C3/04 ,  C10C3/08 ,  D01F9/15 ,  C10C1/18

    CPC分类号： C10C1/04 ,  C10C3/08 ,  D01F9/15

    摘要： A method for the production of a carbon fiber precursor from coal tar pitch comprising extracting coal tar pitch at elevated temperatures and pressures with a mixture of a supercritical gas and an entraining agent to obtain a solution free of quinoline-insoluble components, recovering from the solution by lowering the pressure and/or raising the temperature to obtain at least one fraction selected from the group consisting of quinoline-soluble fraction and toluene-soluble fraction, treating the said fraction(s) at 380.degree. to 450.degree. C. under a non-oxidizing atmosphere at atmosphere pressure until 40 to 65% by volume of the product is converted into pitch containing mesophase, extracting the latter pitch with a mixture of supercritical gas and an entraining agent to remove isotropic pitch and recovering isotropic pitch with a mesophase content of at least 75% by volume, a pyridine-insoluble matter content of 20 to 50% by weight, a mean molecular weight of 900 to 1200 and a melting point of 330.degree. to 360.degree. C. and the isotropic pitch product produced therefrom and carbon fibers made from the isotropic pitch.

    摘要翻译： 一种从煤沥青沥青生产碳纤维前体的方法，包括在高温和高压下用超临界气体和夹带剂的混合物萃取煤焦油沥青以获得不含喹啉不溶性组分的溶液，从溶液中回收 通过降低压力和/或升高温度以获得至少一种选自喹啉可溶级分和甲苯可溶级分的级分，在380-450℃下处理所述级分， 在空气压力下的氧化气氛直到产物的40至65体积％转化为含有中间相的沥青，用超临界气体和夹带剂的混合物萃取后者沥青以除去各向同性沥青并回收各向同性沥青，中间相含量为 至少75体积％，吡啶不溶物质含量为20〜50重量％，平均分子量为900〜1200，熔点 为330〜360℃，由各向同性沥青产物及各向同性沥青制成碳纤维。

    Improved production of carbon fibers
    3.
    发明授权
    Improved production of carbon fibers 失效
    改善碳纤维的生产

    公开(公告)号：US4882139A

    公开(公告)日：1989-11-21

    申请号：US277700

    申请日：1988-11-30

    申请人： Herbert Beneke ,  Siegfried Peter

    发明人： Herbert Beneke ,  Siegfried Peter

    IPC分类号： C10C3/02 ,  C10C3/04 ,  C10C3/10 ,  D01F9/14 ,  D01F9/15 ,  D01F9/155

    CPC分类号： D01F9/15 ,  D01F9/155

    摘要： In a process for the production of carbon fibers from high boiling bituminous substances in which a purified and polymerized concentrated carbon fiber precursor is spun into fibers which are oxidized and then carbonized and optionally graphitized, the improvement comprising just before spinning a supercritical gas is dissolved in mesophase pitch at a pressure of 100 to 350 bars and a temperature up to 150.degree. K. below the melting temperature of the mesophase pitch to form a low viscosity melt, separating the latter into an isotropic phase and an anisotropic carbon fiber precursor and spinning the latter into fibers whereby the spinning temperature is lowered and the mesophase contact is increased due to the viscosity lowering activity of the supercritical gas.

    摘要翻译： 在由高沸点沥青物质生产碳纤维的方法中，将纯化和聚合的浓缩碳纤维前体纺丝成氧化然后碳化并任选石墨化的纤维，在将超临界气体旋转之前的改进溶解在 在100至350巴的压力下，中温相沥青的温度高于中间相沥青的熔融温度至150°K，以形成低粘度熔体，将其分离成各向同性相和各向异性碳纤维前体，并纺丝 后者变成纤维，由此由于超临界气体的降粘活性，纺丝温度降低并且中间相接触增加。

    Process for producing pitch raw materials
    5.
    发明授权
    Process for producing pitch raw materials 失效
    沥青原料生产工艺

    公开(公告)号：US4806228A

    公开(公告)日：1989-02-21

    申请号：US1013

    申请日：1987-01-07

    申请人： Herbert Beneke ,  Siegfried Peter

    发明人： Herbert Beneke ,  Siegfried Peter

    IPC分类号： B01D11/02 ,  C10C1/18 ,  C10C3/08 ,  C10C1/20

    CPC分类号： C10C1/18 ,  B01D11/0203

    摘要： A process for the production of pitch raw materials having improved properties comprising extracting coal-tar pitch free of solids with a mixture of a supercritical gas extracting agent and an entrainer at elevated temperatures and pressures, passing the extraction mixture to a plurality of separation steps where the supercritical gas and entrainer are removed by lowering the pressure and/or raising the temperature, recycling the mixture of extracting agent and entrainer to the extraction step and recovering the pitch fractions from the separation step, the said pitch fractions being useful for diverse purposes such as soot production, electrode bonding agents, etc.

    摘要翻译： 一种用于生产具有改进性能的沥青原料的方法，包括在高温和高压下将超临界气体萃取剂和夹带剂的混合物提取无固体的煤焦油沥青，将提取混合物通过多个分离步骤， 通过降低压力和/或升高温度来除去超临界气体和夹带剂，将提取剂和夹带剂的混合物再循环到萃取步骤中并从分离步骤回收沥青馏分，所述沥青组分可用于多种目的，例如 作为烟灰生产，电极粘合剂等

    Stable, phenolic modified hydrocarbon resins for leucopigments
    7.
    发明授权
    Stable, phenolic modified hydrocarbon resins for leucopigments 失效
    稳定的苯酚改性烃树脂，用于淡紫色

    公开(公告)号：US4598138A

    公开(公告)日：1986-07-01

    申请号：US548693

    申请日：1983-11-15

    申请人： Wolfgang Lucke ,  Herbert Beneke ,  Peter Staglich

    发明人： Wolfgang Lucke ,  Herbert Beneke ,  Peter Staglich

    IPC分类号： B41J31/00 ,  B41M5/155 ,  C08G83/00 ,  C08G65/40

    CPC分类号： B41M5/155

    摘要： Stable phenolic-modified hydrocarbon resins with an OH number which is 4.5 or greater are resonably priced and toxicologically generally regarded as safe resins for the development of leucopigments, especially for the development of colors in pressure sensitive recording materials. The softening point may be varied by copolymerization with multivalent phenolic compounds and vinyl phenol within the range of 70.degree.-90.degree. C.

    摘要翻译： OH值为4.5或更高的稳定的酚改性烃树脂价格合理，毒理学上通常被认为是用于发展白色素的安全树脂，特别是用于压敏记录材料的颜色发展。 软化点可以通过与多价酚类化合物和乙烯基苯酚在70-90℃范围内的共聚来改变。

    Novel spinning method
    8.
    发明授权
    Novel spinning method 失效
    新型纺丝方法

    公开(公告)号：US4902492A

    公开(公告)日：1990-02-20

    申请号：US258394

    申请日：1988-10-17

    申请人： Herbert Beneke ,  Gerd Collin ,  Manfred Meinbreckse ,  Gerhard Wilhelm

    发明人： Herbert Beneke ,  Gerd Collin ,  Manfred Meinbreckse ,  Gerhard Wilhelm

    IPC分类号： D01F9/14 ,  D01F9/15

    CPC分类号： D01F9/15

    摘要： In a process for the production of carbon fibers from high boiling bituminous substances in which a purified and polymerized concentrated carbon fiber precursor is spun into fibers which are oxidized and then carbonized and optionally graphitized, the improvement comprising adding to the carbon fiber precursor just before spinning 2 to 10% by weight of a solvent in which the precursor is insoluble or only slightly soluble under normal conditions and mixing the resulting mixture under hypercritical conditions for the solvent for at least 10 minutes without gas or solid inclusions formed in the fiber and neoformatgion of solids is prevented.

    摘要翻译： 在由高沸点沥青物质生产碳纤维的方法中，其中纯化和聚合的浓缩碳纤维前体被纺丝成被氧化然后碳化并任选石墨化的纤维，其改进包括在旋转之前向碳纤维前体添加 2至10重量％的溶剂，其中前体在正常条件下不溶或仅微溶，并将所得混合物在超临界条件下混合至溶剂至少10分钟，而不会在纤维中形成气体或固体夹杂物， 防止了固体。