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    A method for manufacturing a hafnium-containing silazane polymer and a method for manufacturing a ceramic from said polymer
    3.
    发明公开
    A method for manufacturing a hafnium-containing silazane polymer and a method for manufacturing a ceramic from said polymer 失效
    一种用于生产由这些聚合物和陶瓷材料制备的含铪聚硅氮烷处理。

    公开(公告)号：EP0434428A2

    公开(公告)日：1991-06-26

    申请号：EP90314023.4

    申请日：1990-12-20

    申请人： SHIN-ETSU CHEMICAL CO., LTD.

    发明人： Takeda, Yoshihumi ,  Hayashida, Akira

    IPC分类号： C08G77/60 ,  C04B35/58

    CPC分类号： C04B35/589 ,  C08G77/60

    摘要： A hafnium-containing silazane polymer is obtained through a polymerization reaction of which the reactants are

    (A) a halide of an organic silicon compound;
    (B) a hafnium compound having a general formula [I]:

            HfX₄   [I]

    wherein X is chlorine or bromine; and
    (C) a disilazane having a general formula [II]:
    wherein R₁, R₂ and R₃ are hydrogen, methyl, ethyl, phenyl or vinyl, and can be the same or different from each other.

    摘要翻译： 含铪聚合物是通过哪些是反应物（A）的有机硅化合物的卤化物的聚合反应得到的硅氮烷; （B）具有通式铪化合物[I]：HfX4 [I]，其中X是氯或溴; 和（C）具有通式[II]二硅氮烷： worin R1，R2和R3是氢，甲基，乙基，苯基或乙烯基，并且可以是相同或不同的海誓山盟。

    Method and apparatus for preparing organic silazane polymer and method for preparing inorganic fibers
    4.
    发明公开
    Method and apparatus for preparing organic silazane polymer and method for preparing inorganic fibers 失效
    方法和一种用于制造有机硅氮烷聚合物的装置，以及用于制造无机纤维的方法。

    公开(公告)号：EP0409146A2

    公开(公告)日：1991-01-23

    申请号：EP90113615.0

    申请日：1990-07-16

    申请人： Shin-Etsu Chemical Co., Ltd. ,  THE FOUNDATION:THE RESEARCH INSTITUTE FOR SPECIAL INORGANIC MATERIALS

    发明人： Hasegawa, Yoshio ,  Takamizawa, Minoru ,  Hayashida, Akira ,  Takeda, Yoshifumi

    IPC分类号： C08G77/62 ,  C04B35/58

    CPC分类号： C08G77/62 ,  C04B35/589

    摘要： An organic silazane polymer is prepared by passing a silazane compound in vapor form through a hollow tube heated at 400 to 700°C for activation and thermally polymerizing the silazane compound in a liquid phase. Inorganic fibers can be prepared from the organic silazane polymer by melt spinning, infusibilizing, and sintering. An apparatus for preparing an organic silazane polymer is also provided, comprising a heated reactor vessel for evaporating and thermally polymerizing a silazane compound, a heated hollow tube in flow communication with said reactor vessel for receiving the silazane compound vapor and heating it at 400 to 700°C for activation, and a conduit, with a condenser for condensing the vapor, for feeding the condensed silazane compound back to the reactor.

    摘要翻译： 有机硅氮烷聚合物是通过使蒸气形式一个硅氮烷化合物通过在400加热至700℃，活化和热聚合在液相中的硅氮烷化合物的中空管来制备。 无机纤维可以由通过熔融纺丝，不熔化和烧结的有机硅氮烷聚合物来制备。 因此，对于有机硅氮烷聚合物的制备提供了一种装置，其包括一个加热的反应器容器中蒸发和热聚合的硅氮烷化合物，在与所述反应器容器流动连通的加热空心管，用于接收所述的硅氮烷化合物的蒸气并在400〜700将其加热 下活化，和一个导管，具有用于冷凝该蒸汽，用于供给冷凝的硅氮烷化合物返回到反应器的冷凝器。

    Production of methylphenyltrisiloxane
    9.
    发明公开
    Production of methylphenyltrisiloxane 失效
    Verfahren zur Herstellung von Methylphenyltrisiloxan。

    公开(公告)号：EP0450957A2

    公开(公告)日：1991-10-09

    申请号：EP91302980.7

    申请日：1991-04-04

    申请人： SHIN-ETSU CHEMICAL CO., LTD.

    发明人： Uehara, Katsuhiro ,  Ishihara, Toshinobu ,  Maruta, Jiyunitirow ,  Hayashida, Akira

    IPC分类号： C07F7/08

    CPC分类号： C07F7/0874

    摘要： A process of producing a methylphenyltrisiloxane having the following general formula:

    wherein R¹ and R² may be the same or different and are each a methyl or phenyl group, the process comprising the step of reacting:

    (A) methyldiphenylsilanol, with
    (B) a silazane compound having a diorganosilazane unit having the following formula:
    wherein R¹ and R² are as defined above. According to the process, colorless and odorless methylphenyltrisiloxanes can be obtained easily, safely and economically, without any special deodorizing or decoloring step.

    摘要翻译： 一种制备具有以下通式的甲基苯基三硅氧烷的方法：其中R 1和R 2可以相同或不同，并且各自为甲基或苯基，所述方法包括使（A ）甲基二苯基硅烷醇，（B）具有下式的二有机硅氮烷单元的硅氮烷化合物：其中R 1和R 2如上定义的。 根据该方法，无需任何特殊的除臭或脱色步骤，可以容易，安全和经济地获得无色无味的甲基苯基三硅氧烷。 Ø