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24 条记录 (耗时 0.012 秒)

    Components and catalysts for the polymerization of olefins
    1.
    发明授权
    Components and catalysts for the polymerization of olefins 失效
    用于烯烃聚合的组分和催化剂

    公开(公告)号：US06515085B1

    公开(公告)日：2003-02-04

    申请号：US08371048

    申请日：1995-01-10

    申请人： Sandro Parodi ,  Roberto Nocci ,  Umberto Giannini ,  Pier Camillo Barbe' ,  Umberto Scata'

    发明人： Sandro Parodi ,  Roberto Nocci ,  Umberto Giannini ,  Pier Camillo Barbe' ,  Umberto Scata'

    IPC分类号： C08F4649

    CPC分类号： C08F10/00 ,  Y02P20/52 ,  C08F4/6543 ,  C08F4/6465 ,  C08F4/6565 ,  C08F4/64 ,  C08F4/651

    摘要： Catalyst-forming components and catalysts for the polymerization of olefins based on said components are disclosed. The catalysts comprise the reaction product of: (a) an Al alkyl compound; (b) a silicon compound containing at least a Si—OR or Si—OCOR or Si—NR2 bond, R being a hydrocarbyl radical; and (c) a solid comprising, as essential support, a Mg dihalide in active form and, supported thereon, a Ti halide or a halo-Ti-alcoholate or said halogenated Ti compound and a silicon compound as defined in (b) in a molar ratio with the supported Ti compound from 1.0 mole to 5 moles of silicon compound per mole of Ti compound. The present invention refers to new supported components of catalysts for the polymerization of CH2═CHR olefins wherein R is an alkyl radical with 1 to 4 carbon atoms, or an aryl radical, and mixtures of said olefins with ethylene, and to the catalysts obtained from said components.

    摘要翻译： 公开了基于所述组分的用于烯烃聚合的催化剂形成组分和催化剂。 催化剂包含以下反应产物：（a）Al烷基化合物;（b）至少含有Si-OR或Si-OCOR或Si-NR2键的硅化合物，R是烃基; 和（c）固体，其包含活性形式的二卤化镁作为必需的载体，并且在其上负载有Ti卤化物或卤代Ti-醇化物或所述卤代Ti化合物和（b）中定义的硅化合物 与负载的Ti化合物的摩尔比为每摩尔Ti化合物1.0摩尔至5摩尔的硅化合物。 本发明涉及用于聚合CH 2 = CHR烯烃的催化剂的新的负载组分，其中R是具有1-4个碳原子的烷基或芳基，以及所述烯烃与乙烯的混合物，以及由 说组件。

    Taped purification process
    6.
    发明授权
    Taped purification process 失效
    TAP净化工艺

    公开(公告)号：US5206436A

    公开(公告)日：1993-04-27

    申请号：US734234

    申请日：1991-07-22

    申请人： Enrico Pontoglio ,  Giordano Donelli ,  Sandro Parodi

    发明人： Enrico Pontoglio ,  Giordano Donelli ,  Sandro Parodi

    IPC分类号： C07C231/24

    CPC分类号： C07C231/24

    摘要： Process for purifying, by crystallization, TAED having a titer.gtoreq.99.5% from a mixture containing crude TAED obtained by acetylation of DAED, wherein the purification process is performed in two different stages (1, 2), characterized in that the temperatures at which the stages are performed differ from one another (delta t) by values comprised between 55.degree. and 110.degree..

    摘要翻译： 通过结晶从通过DAED的乙酰化获得的粗制TAED的混合物中滴定> = 99.5％的TAED进行纯化的方法，其中所述纯化过程在两个不同阶段（1,2）中进行，其特征在于， 这些阶段的执行在55度和110度之间的值彼此不同（Δt）。

    Components and catalysts for the polymerization of olefins
    9.
    发明授权
    Components and catalysts for the polymerization of olefins 失效
    用于烯烃聚合的组分和催化剂

    公开(公告)号：US4522930A

    公开(公告)日：1985-06-11

    申请号：US465594

    申请日：1983-02-10

    申请人： Enrico Albizzati ,  Sandro Parodi ,  Pier C. Barbe

    发明人： Enrico Albizzati ,  Sandro Parodi ,  Pier C. Barbe

    IPC分类号： C08F4/00 ,  C08F4/02 ,  C08F4/60 ,  C08F4/64 ,  C08F4/658 ,  C08F10/00

    CPC分类号： C08F10/00

    摘要： Catalysts for the polymerization of alpha-olefins, which comprise the product of the reaction between:(a) a metalorganic compound of Al;(b) an electron-donor compound reactive towards MgCl.sub.2 but which is not completely complexed with AlEt.sub.3, at the equivalent point of a potentiometric titration under standard conditions;(c) a solid comprising a halogenated Ti compound and an electron-donor belonging to particular classes of compounds and being extractable with AlEt.sub.3 for at least 70% by mols from the solid, the surface area of which after extraction is higher than 20 m.sup.2 /g.The present invention refers to new supported components of catalysts for the polymerization of olefins CH.sub.2 .dbd.CHR, in which R is an alkyl with 1-14 carbon atoms or an aryl, and of mixtures of such olefins with each other and/or with ethylene, and to the catalysts obtained from such components.

    摘要翻译： 用于α-烯烃聚合的催化剂，其包括以下反应的产物：（a）Al的金属有机化合物; （b）在标准条件下在电位滴定的等效点处，与MgCl 2反应但不与AlEt3完全络合的电子给体化合物; （c）包含卤化Ti化合物和属于特定类别化合物的电子给体的固体，并且可与AlEt3一起从固体中提取至少70％的摩尔数，其提取后的表面积高于20m 2 / G。 本发明涉及用于烯烃CH 2 = CHR（其中R是具有1-14个碳原子的烷基或芳基）和这些烯烃与彼此和/或与乙烯的混合物的聚合的催化剂的新的负载组分， 和由这些组分获得的催化剂。