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    Catalyst for the polymerization of olefins
    5.
    发明授权
    Catalyst for the polymerization of olefins 失效
    用于烯烃聚合的催化剂

    公开(公告)号：US06716940B1

    公开(公告)日：2004-04-06

    申请号：US10070120

    申请日：2002-02-28

    申请人： Tiziano Dall'Occo ,  Giovanni Baruzzi ,  Diego Brita ,  Mario Sacchetti

    发明人： Tiziano Dall'Occo ,  Giovanni Baruzzi ,  Diego Brita ,  Mario Sacchetti

    IPC分类号： C08F442

    CPC分类号： C08F10/00 ,  C08F4/6426

    摘要： Catalyst system for the polymerization of olefins CH2═CHR, wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms, comprising the product of the reaction between (a) a solid catalyst component comprising Mg, Ti, and halogen, (b) dimethylaluminium chloride (DMAC) and (c) an alkylaluinium compound, in which the molar ratio between (b) and (c) is lower than 10. This kind of catalyst system is particularly suitable for the preparation of copolymers of ethylene with &agr;-olefins due to its high capacity for incorporating the comonomer while at the same time maintaining high yields.

    摘要翻译： 用于烯烃CH 2 = CHR（其中R是氢或具有1-12个碳原子的烃基）聚合的催化剂体系包括（a）包含Mg，Ti和卤素的固体催化剂组分（b ）二甲基氯化铝（DMAC）和（c）（b）和（c）之间的摩尔比低于10的烷基铝化合物。这种催化剂体系特别适用于制备乙烯与α- 烯烃，因为它具有高的并入共聚单体的能力，同时保持高产率。

    Debris shedding buoy
    6.
    发明授权
    Debris shedding buoy 失效
    碎屑脱落浮标

    公开(公告)号：US5902163A

    公开(公告)日：1999-05-11

    申请号：US854196

    申请日：1997-05-09

    申请人： Giovanni Baruzzi ,  Stephen E. Trenchard

    发明人： Giovanni Baruzzi ,  Stephen E. Trenchard

    IPC分类号： B63B22/16 ,  B63B22/18

    CPC分类号： B63B22/16 ,  B63B22/18

    摘要： A debris shedding buoy having a float body with a top and a bottom is provided. The buoy includes a slide rail, adapted for slidable engagement to a mooring line, is attached to the bottom of the float body. The slide rail is located in a generally centered position beneath the float body and is oriented in a first direction. A rudder device is affixed to the float body and adapted to produce a stabilizing force to maintain the float body in a quasi stable orientation with respect to a current direction, with the first direction being generally aligned to the current direction. Debris lodging against the float body overcomes the stabilizing force produced by the rudder device, causing the float body to rotate from the quasi stable orientation to a second orientation to shed the debris whereupon the float body rotates back to the quasi stable orientation.

    摘要翻译： 提供具有顶部和底部的浮体的碎屑脱落浮标。 浮子包括适于滑动接合到系泊线的滑轨，附接到浮体的底部。 滑轨位于浮子体下方的大致中心位置并且沿第一方向定向。 方向舵装置固定在浮子体上并适于产生稳定力，以使浮体相对于电流方向保持在准稳定的方位，而第一方向大致与电流方向对准。 靠在浮体上的碎屑克服了由舵装置产生的稳定力，导致浮体从准稳定方向旋转到第二方位，从而使浮体转动回到准稳定方向。

    Hyperpure propylene polymer
    7.
    发明授权
    Hyperpure propylene polymer 失效
    高压丙烯聚合物

    公开(公告)号：US5557025A

    公开(公告)日：1996-09-17

    申请号：US675229

    申请日：1991-03-26

    申请人： Luciano Noristi ,  Giovanni Baruzzi

    发明人： Luciano Noristi ,  Giovanni Baruzzi

    IPC分类号： C08F10/00 ,  C07C2/08 ,  C07C2/22

    CPC分类号： C08F10/00

    摘要： A process for preparing hyperpure propylene (co)polymers comprising polymerizing the monomer(s) in liquid monomer in the presence of a catalyst obtained by reacting an Al-trialkyl compound with a solid catalyst component comprising magnesium dihalide in active form, having supported thereon a titanium chloride or chloroalcoholate, and an ether having the general formula: ##STR1## where R and R" are the same or different and are C.sub.2-18 alkyl, C.sub.3-18 cycloalkyl, C.sub.6-18 aryl, C.sub.7-18 arylalkyl or alkylaryl radicals.

    摘要翻译： 一种制备超纯丙烯（共）聚合物的方法，包括在通过使三烷基铝化合物与包含活性形式的二卤化镁的固体催化剂组分反应获得的催化剂存在下使液体单体聚合的单体，其上负载有 氯化钛或氯代醇化物，以及具有以下通式的醚：其中R和R“相同或不同，为C2-18烷基，C3-18环烷基，C6-18芳基，C7-18 芳基烷基或烷基芳基。

    Catalyst component and catalyst for the polymerization of alpha-olefins to stereoregular polymers having narrow molecular weight distribution
    8.
    发明授权
    Catalyst component and catalyst for the polymerization of alpha-olefins to stereoregular polymers having narrow molecular weight distribution 失效
    用于将α-烯烃聚合成具有窄分子量分布的立体规则聚合物的催化剂组分和催化剂

    公开(公告)号：US4980329A

    公开(公告)日：1990-12-25

    申请号：US353223

    申请日：1989-05-15

    申请人： Pier C. Barbe ,  Enrico Albizzati ,  Umberto Giannini ,  Giovanni Baruzzi ,  Luciano Noristi

    发明人： Pier C. Barbe ,  Enrico Albizzati ,  Umberto Giannini ,  Giovanni Baruzzi ,  Luciano Noristi

    IPC分类号： B01J37/00 ,  B01J31/38 ,  C08F4/60 ,  C08F4/64 ,  C08F4/643 ,  C08F4/654 ,  C08F10/00

    CPC分类号： C08F10/00

    摘要： Disclosed is a component for a catalyst for the polymerization of alpha-olefins to stereoregular polymers having narrow molecular weight distribution. The product is formed by the reaction of a solid catalyst-forming component comprising (1) a Ti compound having at least one Ti-halogen bond and (2) optionally, an electron-donor compound, supported on an anhydrous Mg dihalide in active form, with certain amounts of an organic compound (AH) containing at least one active hydrogen atom, in the presence of a liquid medium which is inert with respect to the Ti compound and the other components of the catalyst component, and which has a dielectric constant greater than 2 at 20.degree. C.Catalysts comprising the reaction product of the solid catalyst component prepared as above described, with an Al-alkyl compound and an electron-donor compound are also disclosed.

    摘要翻译： 公开了用于将α-烯烃聚合成具有窄分子量分布的立体规则聚合物的催化剂的组分。 该产物是由固体催化剂形成组分反应形成的，该组分包含（1）具有至少一个Ti-卤素键的Ti化合物和（2）任选的电子给体化合物，负载在活性形式的无水Mg二卤化物上 在一定量的含有至少一个活性氢原子的有机化合物（AH）的存在下，相对于Ti化合物和催化剂组分的其它组分是惰性的，并且具有介电常数 在20℃下大于2的催化剂也包括如上所述制备的固体催化剂组分与烷基铝化合物和电子给体化合物的反应产物。