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    Method for decreasing content of alkoxy groups in alkoxy containing organopolysiloxane
    2.
    发明授权
    Method for decreasing content of alkoxy groups in alkoxy containing organopolysiloxane 失效
    降低含烷氧基的有机聚硅氧烷中烷氧基含量的方法

    公开(公告)号：US5241033A

    公开(公告)日：1993-08-31

    申请号：US805522

    申请日：1991-12-13

    申请人： Hiroshi Tsumura ,  Kiyoyuki Mutoh ,  Kazushi Satoh ,  Ken-ichi Isobe

    发明人： Hiroshi Tsumura ,  Kiyoyuki Mutoh ,  Kazushi Satoh ,  Ken-ichi Isobe

    IPC分类号： C08G77/06 ,  C08G77/08 ,  C08G77/22 ,  C08G77/32

    CPC分类号： C08G77/08

    摘要： A novel and efficient method is disclosed for decreasing the content of residual alkoxy groups in an organopolysiloxane such as so-called MQ resins, usually and unavoidably, having a considerable amount of residual alkoxy groups bonded to the silicon atoms to be very detrimental against practical application of the organopolysiloxane. The method comprises admixing the alkoxy-containing organopolysiloxane with a strongly alkaline compound such as alkali metal hydroxides as a catalyst, an aprotic polar solvent such as N,N-dimethyl formamide, dimethyl sulfoxide and the like and water each in a specified amount and heating the mixture, for example, under reflux so that the alkoxy groups are rapidly hydrolyzed and can be removed in the form of an alcohol.

    摘要翻译： 公开了一种用于降低有机聚硅氧烷（例如所谓的MQ树脂）中残留的烷氧基的含量的新型和有效的方法，所述MQ树脂通常并且不可避免地具有与硅原子键合的相当量的残余烷氧基对实际应用非常有害 的有机聚硅氧烷。 该方法包括将含烷氧基的有机聚硅氧烷与强碱性化合物如碱金属氢氧化物作为催化剂，非质子极性溶剂如N，N-二甲基甲酰胺，二甲基亚砜等和各自以规定量加热并加热 混合物例如在回流下使得烷氧基被快速水解并且可以以醇的形式除去。

    Method for decolorizing purification of halogenated silane
    5.
    发明授权
    Method for decolorizing purification of halogenated silane 失效
    卤化硅烷纯化脱色方法

    公开(公告)号：US5210250A

    公开(公告)日：1993-05-11

    申请号：US935797

    申请日：1992-08-27

    申请人： Isao Watanuki ,  Hiroshi Tsumura ,  Nobuhiko Kodana ,  Kazushi Satoh ,  Masanori Fukuhira ,  Hidehiko Aonuma

    发明人： Isao Watanuki ,  Hiroshi Tsumura ,  Nobuhiko Kodana ,  Kazushi Satoh ,  Masanori Fukuhira ,  Hidehiko Aonuma

    IPC分类号： C07F7/12 ,  C07F7/20

    CPC分类号： C07F7/12 ,  C07F7/20

    摘要： A simple but very effective and reliable method is proposed for the decolorizing purification of a halogenated silane compound, e.g., methyl trichlorosilane, colored by containing a very small amount of heavy metal impurities such as iron. The method comprises: contacting the halogenated silane compound with a small amount of a cationic surface active agent which is solid and insoluble in the silane such as a quaternary ammonium salt, e.g., trimethyl octadecyl ammonium chloride, for 2 to 240 minutes; and then separating the silane compound from the cationic surface active agent.

    摘要翻译： 提出了一种简单但非常有效和可靠的方法，用于通过含有非常少量的重金属杂质如铁来着色的卤代硅烷化合物，例如甲基三氯硅烷的脱色纯化。 该方法包括：将卤代硅烷化合物与少量固体并不溶于硅烷如阳离子表面活性剂如季铵盐如三甲基十八烷基氯化铵接触2至240分钟; 然后将硅烷化合物与阳离子表面活性剂分离。

    Preparation of silanes
    7.
    发明授权
    Preparation of silanes 失效
    硅烷的制备

    公开(公告)号：US5712405A

    公开(公告)日：1998-01-27

    申请号：US781207

    申请日：1997-01-10

    申请人： Hiroshi Nakayama ,  Hiroshi Tsumura ,  Tetsuo Nakanishi ,  Yukinori Satoh

    发明人： Hiroshi Nakayama ,  Hiroshi Tsumura ,  Tetsuo Nakanishi ,  Yukinori Satoh

    IPC分类号： B01J23/84 ,  C07B61/00 ,  C07F7/08 ,  C07F7/12 ,  C07F7/16

    CPC分类号： C07F7/16

    摘要： An (alkylhalo)silane is prepared by using a fluidized bed reactor equipped with a feed line for reactant gas and a delivery line for product gas, charging the reactor with a contact mass comprising metallic silicon powder and a copper catalyst, and feeding a reactant gas containing an alkyl halide through the feed line into the reactor whereby the silane is formed by direct synthesis. A dust collector is connected to the delivery line for collecting the contact mass carried over with the product gas, which is fed back to the reactor. The feed of the reactant gas is controlled such that a linear velocity multiplied by a density may range from 0.2-2 kg/m.sup.2 .multidot.sec.

    摘要翻译： 通过使用配备有反应气体的进料管线和产物气体的输送管线的流化床反应器制备（烷基卤代）硅烷，用包括金属硅粉末和铜催化剂的接触物料装入反应器，并将反应气体 含有通过进料管线的烷基卤化物进入反应器，由此通过直接合成形成硅烷。 集尘器连接到输送管线，用于收集被反馈到反应器的产物气体携带的接触物质。 控制反应气体的进料使得乘以密度的线速度可以在0.2-2kg / m2×sec的范围内。

    Method for the preparation of an organopolysiloxane containing tetrafunctional siloxane units
    8.
    发明授权
    Method for the preparation of an organopolysiloxane containing tetrafunctional siloxane units 失效
    制备含四官能硅氧烷单元的有机聚硅氧烷的方法

    公开(公告)号：US5070175A

    公开(公告)日：1991-12-03

    申请号：US706148

    申请日：1991-05-28

    申请人： Hiroshi Tsumura ,  Kiyoyuki Mutoh ,  Kazushi Satoh ,  Ken-ichi Isobe

    发明人： Hiroshi Tsumura ,  Kiyoyuki Mutoh ,  Kazushi Satoh ,  Ken-ichi Isobe

    IPC分类号： C08G77/02 ,  C08G77/06 ,  C08G77/08

    CPC分类号： C08G77/08 ,  C08G77/06

    摘要： An efficient and economically advantageous method is proposed for the preparation of an organopolysiloxane comprising tetrafunctional siloxane units, i.e. Q units, and, typically, monofunctional siloxy units, i.e. M units, and useful as a reinforcing agent in silicone rubbers. The method comprises the steps of: mixing the reactants for providing the Q and M units, such as ethyl orthosilicate and trimethyl methoxy silane, in a desired molar ratio; and heating the mixture at a temperature higher by at least 10.degree. C. than the boiling point of the mixture under normal pressure in a closed vessel in the presence of water and a catalyst such as a sulfonic acid group-containing compound. In addition to the greatly shortened reaction time and remarkably decreased contents of residual alkoxy groups and gelled matter in the product, the method is advantageous also in respect of the absence of the problems caused by the disposal of the waste water as well as the corrosiveness of hydrogen chloride unavoidably produced in the conventional prior art methods.

    摘要翻译： 提出了一种有效和经济上有利的方法，用于制备包含四官能硅氧烷单元即Q单元的有机聚硅氧烷，通常为单官能甲硅烷氧基单元，即M单元，并且可用作硅橡胶中的增强剂。 该方法包括以下步骤：以所需的摩尔比混合反应物以提供Q和M单元，如原硅酸乙酯和三甲基甲氧基硅烷; 并且在水和催化剂如含磺酸基化合物的存在下，在密闭容器中，在常压下，比混合物的沸点高至少10℃的温度加热该混合物。 除了反应时间大大缩短，产物中残留的烷氧基和凝胶物含量显着降低之外，该方法在废水处理不存在的问题以及废水处理的腐蚀性方面也是有利的 在常规现有技术方法中不可避免地产生氯化氢。

    Apparatus for sintering a porous glass base material and a method therefor
    10.
    发明授权
    Apparatus for sintering a porous glass base material and a method therefor 有权
    用于烧结多孔玻璃基材的设备及其方法

    公开(公告)号：US06442978B1

    公开(公告)日：2002-09-03

    申请号：US09520966

    申请日：2000-03-08

    申请人： Takeshi Kamio ,  Hiroyuki Koide ,  Hiroshi Tsumura ,  Tadakatsu Shimada ,  Hideo Hirasawa

    发明人： Takeshi Kamio ,  Hiroyuki Koide ,  Hiroshi Tsumura ,  Tadakatsu Shimada ,  Hideo Hirasawa

    IPC分类号： C03B3707

    CPC分类号： C03B37/0146 ,  C03B37/01446 ,  Y02P40/57

    摘要： Apparatus (700) for sintering a glass base material (2) which is a base material for an optical fiber. The sintering apparatus (700) includes: a control unit which varies a condition for sintering the glass base material; and a furnace (12) which sinters the glass base material by heating the glass base material in an atmosphere of dehydration gas and inert gas. The control unit includes a drive source (3) which supplies the glass base material to the furnace at various speeds. The control unit includes a temperature control unit which controls the temperature of a heating source provided in the furnace.

    摘要翻译： 用于烧结作为光纤基材的玻璃基材（2）的设备（700）。 烧结装置（700）包括：控制单元，其改变用于烧结玻璃基材的状态; 以及通过在脱水气体和惰性气体的气氛中加热玻璃基材来烧结玻璃基材的炉（12）。 控制单元包括以各种速度将玻璃基材供应到炉的驱动源（3）。 控制单元包括控制设置在炉中的加热源的温度的温度控制单元。