利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

17 条记录 (耗时 0.018 秒)

    THERMOPLASTIC LIGNIN FOR PRODUCING CARBON FIBERS
    11.
    发明申请
    THERMOPLASTIC LIGNIN FOR PRODUCING CARBON FIBERS 审中-公开
    用于生产碳纤维的热塑性树脂

    公开(公告)号：US20130183227A1

    公开(公告)日：2013-07-18

    申请号：US13823987

    申请日：2011-09-08

    申请人： Bernd Wohlmann ,  Michael Wolki ,  Silke Stusgen

    发明人： Bernd Wohlmann ,  Michael Wolki ,  Silke Stusgen

    IPC分类号： C07G1/00

    CPC分类号： C07G1/00 ,  C08H6/00 ,  D01F9/17

    摘要： A fusible lignin has a gas transition temperature in the range between 90 and 160° C. determined using differential scanning calorimetry (DSC), a molar mass distribution with a dispersivity of less than 28, determined using gel permeation chromatography (GPC), an ash content of less than 1 wt. %, and a proportion of volatile components of a maximum of 1 wt. %. Also provided is a precursor fiber based on the fusible lignin, as well as a method for the production thereof Also provided is a method for producing a carbon fiber from the precursor fiber.

    摘要翻译： 熔融木质素的气体转变温度在90至160℃的范围内，使用差示扫描量热法（DSC）测定，使用凝胶渗透色谱（GPC）测定的分散度小于28的摩尔质量分数，灰分 含量小于1重量％ ％，挥发性成分的比例最大为1重量％。 ％。 还提供了基于可熔性木质素的前体纤维，以及其生产方法。还提供了从前体纤维制备碳纤维的方法。

    HOLLOW CARBON FIBRES AND PROCESS FOR THEIR PRODUCTION
    12.
    发明申请
    HOLLOW CARBON FIBRES AND PROCESS FOR THEIR PRODUCTION 审中-公开
    中空碳纤维及其生产工艺

    公开(公告)号：US20110104489A1

    公开(公告)日：2011-05-05

    申请号：US12674995

    申请日：2008-09-17

    申请人： Michael Wolki ,  Bernd Wohlmann ,  Mathias Kaiser ,  Rudolf Emmerich ,  Frank Henning

    发明人： Michael Wolki ,  Bernd Wohlmann ,  Mathias Kaiser ,  Rudolf Emmerich ,  Frank Henning

    IPC分类号： D02G3/02 ,  C01B31/02 ,  D02G3/22

    CPC分类号： B01D71/021 ,  B01D67/0067 ,  B01D69/08 ,  B01D69/081 ,  B01D2323/42 ,  B01D2325/40 ,  D01D5/24 ,  D01F9/225 ,  Y10T428/2918

    摘要： A process for the production of hollow carbon fibres by the treatment of a stabilised carbon fibre precursor in an application device using high-frequency electromagnetic waves. The application device includes structure supplying the electromagnetic waves to a outcoupling region and a hollow outer conductor terminating in the outcoupling region. For the treatment, a field of the high-frequency electromagnetic waves is generated and a field strength in the range from 15 to 40 kV/m is set in the outcoupling region of the application device. The stabilised carbon fibre precursor is conveyed continuously as an inner conductor through the hollow outer conductor, thereby forming a coaxial conductor having an outer and an inner conductor, and through the subsequent outcoupling region. An inert gas atmosphere is created in the coaxial conductor and in the outcoupling region by passing through an inert gas.

    摘要翻译： 一种通过在使用高频电磁波的应用装置中处理稳定的碳纤维前体来生产中空碳纤维的方法。 应用装置包括将电磁波提供给输出耦合区域和终止于输出耦合区域的中空外部导体的结构。 为了处理，产生高频电磁波的场，并且在应用装置的输出耦合区域中设定在15至40kV / m范围内的场强。 稳定的碳纤维前体作为内导体通过中空外导体连续输送，从而形成具有外导体和内导体的同轴导体，并通过随后的外耦合区域。 在同轴导体和外耦合区域中通过惰性气体产生惰性气体气氛。

    STABILIZATION OF POLYACRYLONITRILE PRECURSOR YARNS
    14.
    发明申请
    STABILIZATION OF POLYACRYLONITRILE PRECURSOR YARNS 审中-公开
    聚丙烯腈前驱纱线的稳定性

    公开(公告)号：US20120137446A1

    公开(公告)日：2012-06-07

    申请号：US13390635

    申请日：2010-08-31

    申请人： Bernd Wohlmann ,  Michael Wolki ,  Christian Hunyar ,  Rudolf Emmerich ,  Mathias Kaiser ,  Matthias Graf ,  Lukas Alberts ,  Klaus-Dieter Nauenburg

    发明人： Bernd Wohlmann ,  Michael Wolki ,  Christian Hunyar ,  Rudolf Emmerich ,  Mathias Kaiser ,  Matthias Graf ,  Lukas Alberts ,  Klaus-Dieter Nauenburg

    IPC分类号： C08J7/12

    CPC分类号： D06M10/04 ,  D01F9/225 ,  D06M10/06 ,  D06M2101/28

    摘要： A method for stabilizing yarns made from polyacrylonitrile using chemical stabilization reactions, including: generating a field of high-frequency electromagnetic waves in an application space of an applicator, which has areas with minimum electric field strength and areas with maximum electric field strength, the maximum electric field strength in the application space being in a range from 3 to 150 kV/m; continuously supplying a precursor yarn based on a polyacrylonitrile polymer into the application space, and conveying the precursor yarn through the application space and through the field of the high-frequency electromagnetic waves; introducing a process gas into the application space and conveying the process gas through the application space with a flow rate of at least 0.1 m/s relative to the precursor yarn being conveyed through the application space, wherein a temperature of the process gas is in a range between 150 and 300° C., so that it is above a critical minimum temperature Tcrit and below a maximum temperature Tmax.

    摘要翻译： 一种用于使用化学稳定反应稳定由聚丙烯腈制成的纱线的方法，包括：在施加器的施加空间中产生高频电磁场，其具有最小电场强度和最大电场强度的区域，最大值 应用空间的电场强度在3〜150kV / m的范围内; 将基于聚丙烯腈聚合物的前体纱线连续地供给到涂布空间中，并通过涂布空间和高频电磁波的领域输送前体纱线; 将工艺气体引入所述应用空间中，并且以相对于通过所述施加空间传送的所述前体纱线的流速为至少0.1m / s的速度将所述工艺气体输送通过所述施加空间，其中所述处理气体的温度为 范围在150和300℃之间，使得其高于临界最低温度Tcrit并低于最大温度Tmax。

    LIGNIN DERIVATIVE, SHAPED BODY COMPRISING THE DERIVATIVE AND CARBON FIBERS PRODUCED FROM THE SHAPED BODY
    15.
    发明申请
    LIGNIN DERIVATIVE, SHAPED BODY COMPRISING THE DERIVATIVE AND CARBON FIBERS PRODUCED FROM THE SHAPED BODY 审中-公开
    包含衍生物和碳纤维的成形体，包括由形状体形成的衍生物和碳纤维

    公开(公告)号：US20110274612A1

    公开(公告)日：2011-11-10

    申请号：US13144879

    申请日：2010-01-11

    申请人： Bernd Wohlmann ,  Michael Wolki ,  Andreas Ebert ,  Gunnar Engelmann ,  Hans-Peter Fink

    发明人： Bernd Wohlmann ,  Michael Wolki ,  Andreas Ebert ,  Gunnar Engelmann ,  Hans-Peter Fink

    IPC分类号： D01F9/12 ,  C08H7/00

    CPC分类号： D01F9/17 ,  C08G18/6492 ,  C08H6/00

    摘要： A lignin derivative is produced from a lignin with the empirical formula L(OH)z, where L is a lignin without hydroxyl groups, OH are free hydroxyl groups bonded to L, and z is 100% of the free hydroxyl groups bonded to L. The lignin derivative has free hydroxyl groups that are derivatized with divalent residues Rx and monovalent residues Ry that are bonded to L via an ester, ether, or urethane group. A shaped body comprising the lignin derivative can take the form of a fiber, e.g. as precursor fiber for the production of a carbon fiber. A carbon fiber can be produced from the above-mentioned precursor fiber.

    摘要翻译： 木质素衍生物由具有经验式L（OH）z的木质素生成，其中L是不含羟基的木质素，OH是与L键合的游离羟基，z是与L结合的游离羟基的100％。 木质素衍生物具有游离羟基，其被二价残基Rx和通过酯，醚或氨基甲酸酯基团与L键合的单价残基Ry衍生化。 包含木质素衍生物的成形体可以是纤维的形式，例如， 作为用于生产碳纤维的前体纤维。 可以由上述前体纤维制造碳纤维。

    Process for the Manufacture of Bonded Laid Structures
    16.
    发明申请
    Process for the Manufacture of Bonded Laid Structures 审中-公开
    保税结构制造工艺

    公开(公告)号：US20090014119A1

    公开(公告)日：2009-01-15

    申请号：US12223603

    申请日：2007-02-27

    申请人： Bernd Wohlmann ,  Andreas Woeginger

    发明人： Bernd Wohlmann ,  Andreas Woeginger

    IPC分类号： B29C65/48

    CPC分类号： D04H3/12 ,  B29C70/42 ,  D04H3/14

    摘要： A process for manufacturing bonded laid structures from yarns, characterized in that a thermally fusible material is applied to the yarns at least at the contact or intersection points via a thermal spray process and the yarns are subsequently brought together, as well as a process for manufacturing a fiber-reinforced composite material, characterized in that, initially, laid structures according to the invention are manufactured and subsequently, with the addition of further thermally fusible material if necessary, the structures are molded under heat and pressure into the fiber-reinforced composite material.

    摘要翻译： 一种用于从纱线制造粘合铺设结构的方法，其特征在于，热熔材料至少通过热喷涂工艺在接触点或交点处施加到纱线上，并且纱线随后被带到一起，以及制造方法 纤维增强复合材料，其特征在于，首先制造根据本发明的铺设结构，随后如果需要加入另外的热熔材料，则将该结构在热和压力下成型为纤维增强复合材料 。