Process for the preparation of 2-alkoxytetrahydrofurans via
hydroformylation of allylic alcohols
    21.
    发明授权
    Process for the preparation of 2-alkoxytetrahydrofurans via hydroformylation of allylic alcohols 失效
    通过烯丙醇的加氢甲酰化制备2-烷氧基四氢呋喃的方法

    公开(公告)号:US4139542A

    公开(公告)日:1979-02-13

    申请号:US849435

    申请日:1977-11-07

    申请人: William E. Smith

    发明人: William E. Smith

    CPC分类号: C07D307/20 C07C45/49

    摘要: 2-Alkoxytetrahydrofurans are prepared in higher yields when an allylic alcohol is hydroformylated in the presence of an alkanol and a rhodium/tertiaryphosphine-complex if an acid co-catalyst is used. The products are useful, inter alia, as intermediates in the preparation of butanediols and substituted derivatives thereof.

    摘要翻译: 如果使用酸性助催化剂,当烷基醇和铑/叔膦 - 络合物存在下烯丙基醇被加氢甲酰化时,以更高的收率制备2-烷氧基四氢呋喃。 该产品尤其用作制备丁二醇及其取代衍生物的中间体。

    Purification of p-phenylphenol
    22.
    发明授权
    Purification of p-phenylphenol 失效
    对苯基苯酚的纯化

    公开(公告)号:US3993700A

    公开(公告)日:1976-11-23

    申请号:US333863

    申请日:1973-02-20

    IPC分类号: C07C37/86 C07C37/44

    CPC分类号: C07C37/86 C07C37/84

    摘要: A purified p-phenylphenol is obtained by reduction of the m-phenylphenol percentage from crude or technical grade p-phenylphenol by contacting the mixture with a molar quantity of caustic less than heretofore employed, whereby the m-phenylphenol preferentially reacts to form sodium m-phenylphenate while the p-phenylphenol ends up as a solid in substantially pure form. The amount of the caustic is from about 0.5 to about 10 moles of caustic per mole of m-phenylphenol present. Resin grade p-phenylphenol, i.e., containing less than 2% m-phenylphenol can be obtained from a starting material containing up to 30% m-phenylphenol.

    摘要翻译: 通过使混合物与少于以前使用的摩尔数的苛性碱接触,通过将粗苯酚或工业级对苯基苯酚的间苯基苯酚百分比降低而获得纯化的对苯基苯酚,由此间苯基苯酚优先反应形成m- 苯基苯酚,而对苯基苯酚最终为基本上纯的形式的固体。 苛性碱的量为每摩尔间苯基苯酚约0.5至约10摩尔苛性碱。 树脂级对苯基苯酚,即含有小于2%间苯基苯酚的树脂级别可以从含有高达30%间苯基苯酚的原料获得。

    System for providing auxiliary power
    24.
    发明授权
    System for providing auxiliary power 失效
    提供辅助电源的系统

    公开(公告)号:US3964566A

    公开(公告)日:1976-06-22

    申请号:US597604

    申请日:1975-07-21

    IPC分类号: B62D5/32 F15B11/17 B62D5/06

    CPC分类号: F15B11/17 B62D5/32

    摘要: A system for providing auxiliary power comprises a primary circuit including a primary pump, an output line for providing primary power, and a return line. An auxiliary circuit includes an auxiliary pump, an output line for providing the auxiliary power and a return line. The auxiliary circuit also includes a valve for controlling fluid flow in the output and return line of the auxiliary circuit. A reservoir is connected to the primary return line and to the auxiliary return line. A controlled leakage apparatus for cooling the auxiliary pump is connected to the auxiliary circuit, the reservoir and the primary circuit, and in response to a predetermined pressure in the primary circuit directs a portion of auxiliary output fluid to the reservoir. Approximately all of the auxiliary output fluid is directed to the auxiliary output line when the primary circuit provides less than the predetermined pressure. The auxiliary circuit includes a drive apparatus connected to a vehicle for operating the auxiliary pump whenever the vehicle is moving.

    摘要翻译: 一种用于提供辅助电力的系统包括主电路,其包括主泵,用于提供主电力的输出线和返回线。 辅助电路包括辅助泵,用于提供辅助动力的输出线和返回线。 辅助回路还包括用于控制辅助回路的输出和返回管路中的流体流动的阀。 储液器连接到主回路管线和辅助回油管路。 用于冷却辅助泵的受控泄漏装置连接到辅助回路,储存器和主回路,并且响应于初级回路中的预定压力将辅助输出流体的一部分引导到储存器。 当主电路提供小于预定压力时,大体上所有的辅助输出流体被引导到辅助输出线路。 辅助电路包括连接到车辆的驱动装置,用于每当车辆移动时操作辅助泵。

    Submersible electrical connector
    28.
    发明授权
    Submersible electrical connector 有权
    潜水电连接器

    公开(公告)号:US07625252B2

    公开(公告)日:2009-12-01

    申请号:US11970670

    申请日:2008-01-08

    IPC分类号: H01R4/36

    摘要: A submersible electrical connector intended for use in a power distribution network permits a metal to stripped metal conductor connection to be visually inspected and verified by the installer while eliminating many opportunities for human error present with existing connectors. The connector in one embodiment includes a generally cup or dome-shaped enclosure which is preferably transparent. An open end of the enclosure mates with an upper seal body and a connector plate has a number of apertures adapted to receive the bare metal ends of conductors or wires inserted through the upper seal body. Each aperture in the connector has an associated set screw for securing the conductor thereto. A molded seal member is adapted to mate with the upper seal body and to provide a water-tight connection when mated with the enclosure. The seal member has a number of seal ducts each aligned with one of the apertures in the connector. The seal ducts provide a water-tight seal around the plastic sheath of the conductor when installed in the assembly. Each seal duct initially includes a missile-shaped wire way guide plug inserted therein. Each wire way guide plug can be opened at the bottom to receive the exposed end of the conductor therein. The wire way guide plugs remain installed in the seal ducts to seal them until a conductor is inserted through the associated seal duct.

    摘要翻译: 旨在用于配电网络的潜水电连接器允许金属剥离的金属导体连接被安装者视觉检查和验证,同时消除了存在于现有连接器的许多人为错误的机会。 一个实施例中的连接器包括通常为杯状或圆顶状的外壳,其优选是透明的。 外壳的开口端与上密封体配合,并且连接板具有适于容纳穿过上密封体插入的导体或电线的裸露金属端部的多个孔。 连接器中的每个孔具有用于将导体固定到其上的相关联的固定螺钉。 模制密封构件适于与上密封体相配合,并且在与外壳配合时提供防水连接。 密封构件具有多个密封导管,每个密封导管与连接器中的一个孔对准。 当安装在组件中时,密封导管在导体的塑料护套周围提供防水密封。 每个密封管道最初包括插入其中的导弹状导线插头。 每个导线导管可以在底部打开以接收导体的露出端。 电线导向插头保持安装在密封管道中,以密封它们,直到导体插入相关联的密封导管。

    SUBMERSIBLE ELECTRICAL CONNECTOR
    29.
    发明申请
    SUBMERSIBLE ELECTRICAL CONNECTOR 有权
    不可接触的电气连接器

    公开(公告)号:US20090176416A1

    公开(公告)日:2009-07-09

    申请号:US11970670

    申请日:2008-01-08

    IPC分类号: H01R4/36

    摘要: A submersible electrical connector intended for use in a power distribution network permits a metal to stripped metal conductor connection to be visually inspected and verified by the installer while eliminating many opportunities for human error present with existing connectors. The connector in one embodiment includes a generally cup or dome-shaped enclosure which is preferably transparent. An open end of the enclosure mates with an upper seal body and a connector plate has a number of apertures adapted to receive the bare metal ends of conductors or wires inserted through the upper seal body. Each aperture in the connector has an associated set screw for securing the conductor thereto. A molded seal member is adapted to mate with the upper seal body and to provide a water-tight connection when mated with the enclosure. The seal member has a number of seal ducts each aligned with one of the apertures in the connector. The seal ducts provide a water-tight seal around the plastic sheath of the conductor when installed in the assembly. Each seal duct initially includes a missile-shaped wire way guide plug inserted therein. Each wire way guide plug can be opened at the bottom to receive the exposed end of the conductor therein. The wire way guide plugs remain installed in the seal ducts to seal them until a conductor is inserted through the associated seal duct.

    摘要翻译: 旨在用于配电网络的潜水电连接器允许金属剥离的金属导体连接被安装者视觉检查和验证,同时消除了存在于现有连接器的许多人为错误的机会。 一个实施例中的连接器包括通常为杯状或圆顶状的外壳,其优选是透明的。 外壳的开口端与上密封体配合,并且连接板具有适于容纳穿过上密封体插入的导体或电线的裸露金属端部的多个孔。 连接器中的每个孔具有用于将导体固定到其上的相关联的固定螺钉。 模制密封构件适于与上密封体相配合,并且在与外壳配合时提供防水连接。 密封构件具有多个密封导管,每个密封导管与连接器中的一个孔对准。 当安装在组件中时,密封导管在导体的塑料护套周围提供防水密封。 每个密封管道最初包括插入其中的导弹状导线插头。 每个导线导管可以在底部打开以接收导体的露出端。 电线导向插头保持安装在密封管道中,以密封它们,直到导体插入相关联的密封导管。