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6 条记录 (耗时 0.025 秒)

    Process for the chlorodephenylation of phenyldisilanes
    1.
    发明授权
    Process for the chlorodephenylation of phenyldisilanes 失效
    苯基二硅烷的氯代苯基化方法

    公开(公告)号：US4855471A

    公开(公告)日：1989-08-08

    申请号：US146065

    申请日：1988-01-20

    申请人： William H. Campbell ,  Terrence K. Hilty

    发明人： William H. Campbell ,  Terrence K. Hilty

    IPC分类号： C07F7/12

    CPC分类号： C07F7/123

    摘要： A process for the chlorodephenylation of a phenyl-containing disilane to produce alkylhalodisilanes is described. The process comprises (A) adding an aluminum halide, AlX.sub.3, to a phenyl-containing disilane, having the formula,R.sub.3-a (C.sub.6 H.sub.5).sub.a SiSiR.sub.3-b (C.sub.6 H.sub.5).sub.b,wherein the phenyl-containing disilane has a melting point lower than about 50.degree. C.; and the aluminum halide is added to a concentration greater than about 1 mole percent relative to the phenyl-containing disilane; (B) contacting the phenyl-containing disilane and the aluminum halide, in the absence of a solvent, with excess anhydrous hydrogen halide gas at a temperature less than about 50.degree. C.; (C) facilitating conversion of the phenyl-containing disilane to the alkylhalodisilane; and (D) isolating and recovering the alkylhalodisilane.

    Surgical drape support and oxygen supply device
    3.
    发明授权
    Surgical drape support and oxygen supply device 失效
    手术支架和供氧装置

    公开(公告)号：US4321917A

    公开(公告)日：1982-03-30

    申请号：US171437

    申请日：1980-07-23

    申请人： William H. Campbell

    发明人： William H. Campbell

    IPC分类号： A61G7/05 ,  A61G13/00 ,  A61M16/02

    CPC分类号： A61G13/107 ,  A61G12/002 ,  A61G7/05

    摘要： A surgical drape support device for use with a cover sheet and a conduit for supplying oxygen to a patient disposed on a surgical operating table. The device has a base member which is inserted between a mattress and the surgical table and a support rod which has a drape arm for disposition over a patient. The drape arm can also function as an oxygen distribution means. The base member and the support rod are interconnected by a unitary adjustment means which provides for at least four degrees of adjustment motion for the drape support arm. All adjustments to control the positioning of the drape arm are made from a location removed from the operating field and the patient and are made without removing the overlying drape which is used to retain an oxygen atmosphere over the patient's nose and mouth. One of the degrees of adjustment motion is over an arc about a longitudinal axis which is located parallel to and closely spaced from the edge of the operating table in order to allow movements of the patient's head to be followed.

    摘要翻译： 一种用于覆盖片和用于向设置在外科手术台上的患者供应氧气的导管的手术悬垂支撑装置。 该装置具有插入在床垫和手术台之间的基部构件和具有用于设置在患者身上的悬垂臂的支撑杆。 悬垂臂也可以作为氧气分配装置。 基部构件和支撑杆通过整体调节装置互连，该装置为悬垂支撑臂提供至少四个调节运动。 用于控制悬垂臂的定位的所有调整是从从操作区域和患者移除的位置制成的，并且在不移除用于在患者的鼻子和嘴部上保持氧气氛的上覆盖布而制成。 调整程度中的一个是围绕纵向轴线的弧线，该纵向轴线平行于并且与操作台的边缘紧密地间隔开，以允许患者头部的运动被跟随。

    Process to produce silyl ketene acetals
    6.
    发明授权
    Process to produce silyl ketene acetals 失效
    制备甲硅烷基乙烯酮缩醛的方法

    公开(公告)号：US4824981A

    公开(公告)日：1989-04-25

    申请号：US69750

    申请日：1987-07-06

    申请人： William J. Schulz, Jr. ,  William H. Campbell

    发明人： William J. Schulz, Jr. ,  William H. Campbell

    IPC分类号： C07F7/18 ,  C07F7/08

    CPC分类号： C07F7/188

    摘要： A process for the preparation of silyl ketene acetals of the formulae, R.sup.1 R.sup.2 C=C(OR.sup.3)OSiR.sub.3.sup.4 and R.sup.1 R.sup.2 C=C[OSiR.sub.3.sup.4 ].sub.2,from the reaction of a malonate compound with a triorganohalosilane in the presence of an alkali metal. The malonate compounds are dialkyl dialkylmalonates, bis(trialkylsilyl) dialkylmalonates, and dialkylmalonic acids. The triorganohalosilane is present in stoichiometric excess relative to the malonate compounds. Silyl ketene acetals are isolated and separated.