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8 条记录 (耗时 0.018 秒)

    Dashpot with two cylinders
    1.
    发明授权
    Dashpot with two cylinders 失效
    Dashpot有两个气缸

    公开(公告)号：US06450306B2

    公开(公告)日：2002-09-17

    申请号：US09751003

    申请日：2000-12-28

    申请人： Thomas Sasse ,  Jörg Rehse ,  Ulrich Hartig ,  Oliver Poth

    发明人： Thomas Sasse ,  Jörg Rehse ,  Ulrich Hartig ,  Oliver Poth

    IPC分类号： F16F910

    CPC分类号： F16F9/3235

    摘要： A dashpot with an inner cylinder (3) accommodated in an outer cylinder (1), and a piston (6) traveling back and forth inside on the end of a piston rod (5) and separating the inner cylinder into two chambers (7 & 8). The piston rod enters the cylinders through a hole at one end that seals it off and positions it. The outer cylinder is provided with a base (4) at the end opposite the end with the hole. The inner cylinder is centered along the axis of the outer cylinder at each end. The cylindrical gap (2) between the two cylinders is provided with a fluid-accommodating compartment (11) and, toward the base, a port (13) opening into the adjacent chamber (8). The chamber accommodates, preferably above the port, a vent (12). The mutually contacting ends of the cylinders are hot or cold welded together at the base end or at the end remote from the base.

    摘要翻译： 具有容纳在外筒（1）中的内筒（3）的缓冲器和在活塞杆（5）的端部内侧前后移动并将内筒分离成两个室（7'）的活塞（6） 8）。 活塞杆通过一端的孔进入气缸，将其密封并将其定位。 外筒在与孔的端部相对的端部设置有基部（4）。 内圆柱体在每个端部沿着外筒的轴线居中。 两个气缸之间的圆柱形间隙（2）设置有流体容纳室（11），并且朝向基部设置有通向相邻室（8）的开口（13）。 所述腔室优选地在所述端口上方容纳通气口（12）。 气缸的相互接触的端部在基端或远离基座的一端被热或冷焊接在一起。

    Manufacture of ethylene polymers in a two-zone tubular reactor at pressure above 500 bars
    5.
    发明授权
    Manufacture of ethylene polymers in a two-zone tubular reactor at pressure above 500 bars 失效
    在压力高于500巴的双区管式反应器中制造乙烯聚合物

    公开(公告)号：US4076919A

    公开(公告)日：1978-02-28

    申请号：US741939

    申请日：1976-11-15

    申请人： Friedrich Urban ,  Oskar Buechner ,  Ulrich Hartig ,  Hans Gropper

    发明人： Friedrich Urban ,  Oskar Buechner ,  Ulrich Hartig ,  Hans Gropper

    IPC分类号： C08F2/00 ,  C08F4/28 ,  C08F10/00 ,  C08F10/02

    CPC分类号： C08F10/02

    摘要： Ethylene polymers are manufactured in a tubular reactor under high pressure and at high temperatures in the presence of polymerization initiators. The polymerization is carried out in two different zones of the reactor, a mixture of ethylene, oxygen and regulator being fed into the first zone and a co-initiator having a half-life temperature, measured in benzene, of above 140.degree. C being additionally fed into the second zone. The co-initiator may be a peroxide or a hydroperoxide. The melt index, or the haze and gloss of a film produced from the resulting ethylene polymer, can be varied advantageously through the choice of the co-initiator.

    摘要翻译： 乙烯聚合物在管式反应器中在高压和高温下在聚合引发剂存在下制备。 在反应器的两个不同区域进行聚合，将乙烯，氧气和调节剂的混合物进料到第一区域中，另外在苯中测定的具有半衰期温度的共引发剂在140℃以上 进入第二区。 共引发剂可以是过氧化物或氢过氧化物。 可以通过选择共引发剂来有利地改变由所得乙烯聚合物制备的膜的熔体指数或雾度和光泽度。

    Process for letting down ethylene high pressure polymerization systems
    7.
    发明授权
    Process for letting down ethylene high pressure polymerization systems 失效
    降低乙烯高压聚合体系的方法

    公开(公告)号：US4115638A

    公开(公告)日：1978-09-19

    申请号：US811462

    申请日：1977-06-30

    申请人： Rolf Becker ,  Klaus Borho ,  Oskar Buechner ,  Hans Gropper ,  Ulrich Hartig

    发明人： Rolf Becker ,  Klaus Borho ,  Oskar Buechner ,  Hans Gropper ,  Ulrich Hartig

    IPC分类号： B01J3/00 ,  C08F2/00 ,  C08F2/34 ,  C08F10/00 ,  C08F10/02

    CPC分类号： B01J3/002 ,  C08F10/02

    摘要： The invention relates to a process for rapidly letting-down the pressure in continuous high pressure polymerization systems for the polymerization of ethylene. In this process, the let-down hot reaction mixture is passed into an expansion vessel in such a way that the jet of let-down hot reaction mixture issuing from the let-down line is led into the partially water-filled expansion vessel at an angle of from 0.degree. to 45.degree. to the water surface, so that the jet does not enter below the surface but must touch or strike it. The method described makes it possible to let the mixture down partially and thus to slow down the decomposition in the case of explosive decomposition reactions occurring in the polymerization system.

    摘要翻译： 本发明涉及一种用于快速降低连续高压聚合体系中用于乙烯聚合的压力的方法。 在这个过程中，将下来的热反应混合物通入膨胀容器中，使得从下拉线排出的冷却热反应混合物的射流被引入部分充满水的膨胀容器中 角度为0°至45°，使得射流不会进入表面下方，但必须接触或撞击。 所述的方法使得可以使混合物部分降低，从而在聚合体系中发生爆炸性分解反应的情况下减缓分解。

    Process for direct olefin oxidation
    8.
    发明授权
    Process for direct olefin oxidation 失效
    直接烯烃氧化工艺

    公开(公告)号：US3993672A

    公开(公告)日：1976-11-23

    申请号：US499174

    申请日：1974-08-21

    申请人： Henri Arzoumanian ,  Alain A. Blanc ,  Ulrich Hartig ,  Jacques V. Metzger

    发明人： Henri Arzoumanian ,  Alain A. Blanc ,  Ulrich Hartig ,  Jacques V. Metzger

    IPC分类号： C07D301/06 ,  C07D303/04

    CPC分类号： C07D303/04 ,  C07D301/06

    摘要： Olefins containing from 3 to 30 carbon atoms are directly oxidized to epoxides and allyl alcohols in the liquid phase by contact with a gas stream comprising oxygen but substantially free from hydrogen, in the presence of two metal compound catalysts which are soluble in the reaction mixture. The catalysts are preferably a compound of a Group VII or VIII metal and a compound of a Group VA or VIA transition metal.

    摘要翻译： 含有3至30个碳原子的烯烃在可溶于反应混合物的两种金属化合物催化剂的存在下，通过与包含氧但基本上不含氢的气流接触，直接氧化成液相中的环氧化物和烯丙醇。 催化剂优选为VII族或VIII族金属的化合物和VA族或VIA过渡金属的化合物。