Heterogeneous organotin catalysts
    332.
    发明公开
    Heterogeneous organotin catalysts 有权
    异源生物有机产物

    公开(公告)号:EP0937728A2

    公开(公告)日:1999-08-25

    申请号:EP98307882.5

    申请日:1998-09-29

    Abstract: This invention provides: (a) new organotin functionalized silanes: (b) a solid prepared by chemically bonding organotin functionalized silanes to a solid inorganic support containing surface hydroxy groups: (c) a solid catalyst prepared from said supported organotin functionalized silane; (d) a process for conducting esterification or transesterification, and urethane, urea, silicone, and amino forming reaction utilizing said solid supported catalyst; (e) a process of separating the solid supported catalyst from the reaction products employing ligand - solid separation techniques; (f) reuse of the solid supported catalyst after being separated from the reaction products; (g) a continuous esterification or transesterification reaction or urethane, urea, silicone, or amino forming reaction or urethane, urea, silicone, or amino forming reaction comprising passing reactants for a esterification or transesterification reaction or urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction reaction through a reactor containing a catalytically effective amount of said solid supported catalyst to form esterification or transesterification reaction or a urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction products in said reactor and removing said reaction products from said reactor; and (h) esterification or transesterification reaction or a urethane, urea, silicone, or amino forming reaction or urethane, urea, silicone, or amino forming reaction products produced with said solid, supported, tin-containing catalyst and said reaction products containing less than 100ppm tin by weight; and (i) the synthesis of organotin silanes with and without a Lewis acid.

    Abstract translation: 本发明提供:(a)新的有机锡官能化硅烷:(b)通过将有机锡官能化硅烷化学键合到含有表面羟基的固体无机载体制备的固体:(c)由所述负载的有机锡官能化硅烷制备的固体催化剂; (d)使用所述固体负载型催化剂进行酯化或酯交换的方法和氨基甲酸酯,脲,硅氧烷和氨基形成反应; (e)使用配体 - 固体分离技术将固体负载型催化剂与反应产物分离的方法; (f)固体负载型催化剂在与反应产物分离后的再利用; (g)连续酯化或酯交换反应或氨基甲酸酯,尿素,硅氧烷或氨基形成反应或氨基甲酸酯,脲,硅氧烷或氨基形成反应,包括使反应物通过酯化或酯交换反应或氨基甲酸酯,脲,硅氧烷或氨基形成 反应或氨基甲酸酯,尿素,硅氧烷或氨基形成反应,或通过含有催化有效量的所述固体负载型催化剂的反应器的氨基甲酸酯,尿素,硅氧烷或氨基形成反应反应,以形成酯化或酯交换反应或氨基甲酸酯,尿素 ,硅氧烷或氨基形成反应,或在所述反应器中形成氨基甲酸酯,脲,硅氧烷或氨基反应产物并从所述反应器中除去所述反应产物; 和(h)酯化或酯交换反应或由所述固体,负载的含锡催化剂和所述反应产物生成的氨基甲酸酯,脲,硅氧烷或氨基形成反应或氨基甲酸酯,脲,硅氧烷或氨基形成反应产物,所述反应产物含有少于 100ppm锡重量; 和(i)有和没有路易斯酸的有机锡硅烷的合成。

    MULTI-MODE ACCELEROMETER
    339.
    发明授权
    MULTI-MODE ACCELEROMETER 失效
    有震动的几类ACCELEROMETER

    公开(公告)号:EP0572657B1

    公开(公告)日:1998-08-05

    申请号:EP93902753.8

    申请日:1992-12-23

    CPC classification number: G01P15/0922 G01P15/18

    Abstract: An accelerometer (10) having a piezoelectric transducer (22) which produces electrical signals in response to its deflection and comprises an elongated, continuous beam of generally flat configuration and narrow cross section to provide a bending axis which facilitates deflection of the free ends in response to shock in one or more of the linear and torsional modes. The beam is supported intermediate its ends by a mount (29), with the free ends of the beam preferably extending equidistantly in opposite directions from the mount. By laminating a single piece of piezoelectric material to a rigid substrate and forming cantilevers in each deflection direction, an accelerometer with six degrees of freedom may be formed. Also, a compressive type angular accelerometer (122) may be formed from two piezoelectric sensor elements incorporated onto a single piece of piezoelectric polymer (126).

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