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19 条记录 (耗时 0.026 秒)

    Process for producing pitch based graphite fibers
    1.
    发明授权
    Process for producing pitch based graphite fibers 失效
    沥青基石墨纤维生产方法

    公开(公告)号：US4574077A

    公开(公告)日：1986-03-04

    申请号：US659261

    申请日：1984-10-10

    申请人： Seiichi Uemura ,  Takao Hirose ,  Yoshio Sohda ,  Takayoshi Sakamoto ,  Yoshio Kishimoto

    发明人： Seiichi Uemura ,  Takao Hirose ,  Yoshio Sohda ,  Takayoshi Sakamoto ,  Yoshio Kishimoto

    IPC分类号： D01F9/15 ,  D01F9/155 ,  D01F9/14

    CPC分类号： D01F9/15 ,  D01F9/155

    摘要： Provided is a process for producing a pitch-based graphite fiber, which process comprises treating a pitch fiber in an oxidative gas atmosphere to render it infusible, said pitch fiber being obtained by melt-spinning a carbonaceous pitch, then heat-treating the infusibilized fiber at 400.degree.-750.degree. C. in an inert gas atmosphere to obtain a precarbonized fiber substantially containing oxygen, then raising the temperature to 2,000.degree.-3,000.degree. C. at a rate of 500.degree. C. or higher per minute in an inert gas atmosphere and heat-treating the precarbonized fiber at the raised temperature of 2,000.degree.-3,000.degree. C. in said inert gas atmosphere.

    摘要翻译： 提供了一种沥青类石墨纤维的制造方法，该方法包括在氧化性气体气氛中处理沥青纤维使其不熔融，所述沥青纤维通过将碳质沥青熔融纺丝获得，然后热处理不熔化的纤维 在惰性气体气氛中于400-750℃下反应，得到基本上含氧的预碳化纤维，然后在惰性气体中以500℃或更高的速度将温度升至2000℃-3000℃ 在所述惰性气体气氛中在2000℃-3000℃的升高温度下对预碳化纤维进行热处理。

    Process for producing pitch carbon fibers
    2.
    发明授权
    Process for producing pitch carbon fibers 失效
    沥青碳纤维生产方法

    公开(公告)号：US4656022A

    公开(公告)日：1987-04-07

    申请号：US820431

    申请日：1986-01-17

    申请人： Seiichi Uemura ,  Takao Hirose ,  Yoshio Sohda ,  Takayoshi Sakamoto ,  Kenji Katoh

    发明人： Seiichi Uemura ,  Takao Hirose ,  Yoshio Sohda ,  Takayoshi Sakamoto ,  Kenji Katoh

    IPC分类号： D01F9/14 ,  D01F9/145 ,  D01F11/14 ,  D01F9/12

    CPC分类号： D01F9/145

    摘要： In the process for producing pitch carbon fibers by melt-spinning a carbonaceous pitch, and infusiblizing the resulting pitch fibers followed by carbonization and, additionally as needed, graphitization, the pitch fibers are subjected to infusiblization treatment following application of a dimethyl polysiloxane having a viscosity at 25.degree. C. in the range between 0.5 and 500 cSt and removing said dimethyl polysiloxane by washing prior to the carbonization.

    摘要翻译： 在通过熔融纺丝碳质沥青来制造沥青碳纤维的方法中，并且将所得的沥青纤维进行碳化，并且根据需要进一步石墨化，沥青纤维在施加具有粘度的二甲基聚硅氧烷之后进行不熔化处理 在25℃下在0.5至500cSt之间的范围内，并且在碳化之前通过洗涤除去所述二甲基聚硅氧烷。

    Process for producing pitch-based carbon fibers
    3.
    发明授权
    Process for producing pitch-based carbon fibers 失效
    制备沥青基碳纤维的方法

    公开(公告)号：US4788050A

    公开(公告)日：1988-11-29

    申请号：US031935

    申请日：1987-03-27

    申请人： Takao Hirose ,  Yoshio Sohda ,  Kazuyoshi Okamoto ,  Seiichi Uemura

    发明人： Takao Hirose ,  Yoshio Sohda ,  Kazuyoshi Okamoto ,  Seiichi Uemura

    IPC分类号： D01F9/12 ,  B65H69/00 ,  D01F9/14 ,  D01F9/145

    CPC分类号： D01F9/145

    摘要： In a process for producing carbon fibers from a carbonaceous pitch, the improvement characterized in that an end portion of infusiblized fiber or carbonized fiber to be first subjected to a carbonizing or graphitizing treatment and that of infusiblized fiber or carbonized fiber to be next subjected to the same treatment are bonded together using a composition comprising (a) at least one member selected from the group consisting of phenolic resins and pitches and (b) graphite powder, and the thus-bonded fibers are fed successively to a carbonizing apparatus or a graphitizing apparatus.

    摘要翻译： 在从碳质沥青生产碳纤维的方法中，其改进之处在于，首先要进行碳化或石墨化处理的熔融纤维或碳化纤维的端部以及接下来要经受碳化或碳化纤维的待熔化纤维或碳化纤维的端部 使用包含（a）选自酚醛树脂和间距中的至少一种的组合物和（b）石墨粉末的组合物将相同的处理结合在一起，并且将这样粘合的纤维依次送入碳化装置或石墨化装置 。

    Process for producing carbon fibers
    4.
    发明授权
    Process for producing carbon fibers 失效
    生产碳纤维的方法

    公开(公告)号：US4534950A

    公开(公告)日：1985-08-13

    申请号：US520157

    申请日：1983-08-04

    申请人： Seiichi Uemura ,  Takao Hirose ,  Yoshio Sohda

    发明人： Seiichi Uemura ,  Takao Hirose ,  Yoshio Sohda

    IPC分类号： D01F9/155 ,  D01F9/14 ,  D01F9/145 ,  D01F9/12

    CPC分类号： D01F9/145

    摘要： A process for producing carbon fibers, comprising melt spinning a carbonaceous pitch to obtain pitch fibers, contacting the thus obtained pitch fibers with hydrobromic acid, making the thus contacted fibers infusible in an oxidizing atmosphere and then carbonizing and, if desirable, graphitizing the thus treated pitch fibers to obtain the carbon fibers.

    摘要翻译： 一种生产碳纤维的方法，包括将碳质沥青熔融纺丝以获得沥青纤维，使由此获得的沥青纤维与氢溴酸接触，使得这样接触的纤维在氧化气氛中不可渗入，然后碳化，如果需要，将如此处理的石墨化 沥青纤维以获得碳纤维。

    Process for producing carbon fiber fabrics
    5.
    发明授权
    Process for producing carbon fiber fabrics 失效
    生产碳纤维织物的方法

    公开(公告)号：US5622660A

    公开(公告)日：1997-04-22

    申请号：US370027

    申请日：1995-01-09

    申请人： Seiichi Uemura ,  Yoshio Sohda ,  Yasuzi Ido

    发明人： Seiichi Uemura ,  Yoshio Sohda ,  Yasuzi Ido

    IPC分类号： D01F9/145 ,  D01F9/12

    CPC分类号： D01F9/145

    摘要： A process for producing a process for producing a two- or three-dimensional carbon fabric, which process includes melt-spinning (a) an optically anisotropic carbonaceous pitch having an optically anisotropic phase content of 60 to 100%, subjecting the thus- infusibilized fibers to a primary heat treatment at a temperature greater than 1000.degree. and not higher than 2500.degree. C. to produce primary heat treated fibers having a tensile strength not lower than 300 kg/mm.sup.2 and a breaking elongation in the range of 0.4% to 10%, preparing a two- or three-dimensional fabric from the primary heat treated fibers and then subjecting the two- or three-dimensional fabric to a secondary heat treatment at a temperature which is at least 50.degree. higher than the temperature used in the primary heat treatment, the temperature in the secondary heat treatment being higher than 1050.degree. C. and no higher than 3300.degree. C.

    摘要翻译： 一种制备二维或三维碳纤维织物的方法的方法，该方法包括熔融纺丝（a）光学各向异性相含量为60-100％的光学各向异性碳质沥青，将这样的不熔化纤维 在大于1000℃且不高于2500℃的温度下进行一次热处理，以产生拉伸强度不低于300kg / mm 2的一次热处理纤维，并且断裂伸长率在0.4％至10％的范围内 从一次热处理纤维制备二维或三维织物，然后在二次或三维织物在比一次加热中使用的温度高至少50℃的温度下进行二次热处理 二次热处理温度高于1050℃，不高于3300℃。