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    Catalysts for the polymerization of olefins and process for the preparation thereof
    3.
    发明授权
    Catalysts for the polymerization of olefins and process for the preparation thereof 失效
    用于烯烃聚合的催化剂及其制备方法

    公开(公告)号：US06476163B2

    公开(公告)日：2002-11-05

    申请号：US09331928

    申请日：1999-06-29

    申请人： Jan F. Van Baar ,  Maurizio Galimberti ,  Klaas L. Von Hebel ,  Andrew D. Horton ,  Gerard M. M. Van Kessel ,  Peter A. Schut ,  Tiziano Dall'occo

    发明人： Jan F. Van Baar ,  Maurizio Galimberti ,  Klaas L. Von Hebel ,  Andrew D. Horton ,  Gerard M. M. Van Kessel ,  Peter A. Schut ,  Tiziano Dall'occo

    IPC分类号： C08F4642

    CPC分类号： C08F10/00 ,  C08F4/65927 ,  C08F110/06 ,  C08F210/16 ,  Y10S526/943 ,  C08F4/65912 ,  C08F210/06

    摘要： Catalysts for the polymerization of olefins are disclosed, comprising the product obtainable by contacting: (A) a bridged and/or substituted cyclopentadienyl compound of Ti, Zr or Hf; (B) one or more organometallic aluminium compounds of formula (II): AlR43−zHz wherein the substituents R4, same or different from each other, are linear or branched, saturated or unsaturated C1-C20 alkyl or alkylaryl radicals, optionally containing Si or Ge atoms, wherein at least one of the substituents R4 is different from a straight alkyl group; z is 0 or 1; and (C) water, the molar ratio between the organometallic aluminium compound and water being comprised between 1:1 and 100:1; said catalyst being obtainable by a process comprising the following steps: (i) contacting component (A) with part of component (B) in the absence of component (C); (ii) contacting part of component (B) with component (C) in the absence of component (A) and successively (iii) contacting the products obtained in steps (i) and (ii).

    摘要翻译： 公开了用于烯烃聚合的催化剂，其包含通过使（A）Ti，Zr或Hf的桥连和/或取代的环戊二烯基化合物接触而获得的产物; （B）一种或多种式（II）的有机金属铝化合物：AlR43-zHz其中相同或不同的取代基R4是直链或支链的，饱和或不饱和的C 1 -C 20烷基或烷基芳基，任选地含有Si或 Ge原子，其中至少一个取代基R4不同于直链烷基; z为0或1; 和（C）水，有机金属铝化合物与水的摩尔比为1:1至100:1; 所述催化剂可通过包括以下步骤的方法获得：（i）在不存在组分（C）的情况下使组分（A）与组分（B）的一部分接触; （ii）在不存在组分（A）的情况下将组分（B）的一部分与组分（C）接触，并且连续地（iii）使步骤（i）和（ii）中获得的产物接触。

    Catalysts and processes for the polymerization of olefins
    4.
    发明授权
    Catalysts and processes for the polymerization of olefins 失效
    催化剂和烯烃聚合方法

    公开(公告)号：US6136932A

    公开(公告)日：2000-10-24

    申请号：US176188

    申请日：1998-10-21

    申请人： Tiziano Dall'occo ,  Maurizio Galimberti ,  Luigi Resconi ,  Enrico Albizzati ,  Gianni Pennini

    发明人： Tiziano Dall'occo ,  Maurizio Galimberti ,  Luigi Resconi ,  Enrico Albizzati ,  Gianni Pennini

    IPC分类号： C08F4/642 ,  C08F4/64 ,  C08F4/648 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F10/02 ,  C08F10/06 ,  C08F110/02 ,  C08F110/06 ,  C08F210/16 ,  C08F4/602

    CPC分类号： C08F10/00 ,  C08F10/02 ,  C08F10/06 ,  C08F110/02 ,  C08F110/06 ,  C08F210/16 ,  C08F4/65912 ,  C08F4/65922 ,  Y10S526/943

    摘要： Catalysts for the polymerization of olefins which comprise the reaction product of (a) a bridged and/or substituted cyclopentadienyl compound of titanium, zirconium, or hafnium; (b) an organometallic aluminum compound of formula Al(CH.sub.2 --CR.sup.4 R.sup.5 R.sup.6).sub.w R.sup.7.sub.y H.sub.z, wherein in the (CH.sub.2 --CR.sup.4 R.sup.5 R.sup.6) groups, which are the same or different, R.sup.4 is an alkyl, alkenyl or arylalkyl group having from 1 to 10 carbon atoms, R.sup.5 is an alkyl, alkenyl, aryl, arylalkyl or alkylaryl group having from 3 to 50 carbon atoms and, optionally, R.sup.4 and R.sup.5 can be fused together to form a ring having from 4-6 carbon atoms, R.sup.6 is hydrogen or an alkyl alkenyl or arylalkyl group having from 1 to 10 carbon atoms, the R.sup.7 substituents, the same or different, are alkyl, alkenyl, aryl, arylalkyl or alkylaryl radicals having from 1 to 10 carbon atoms and, optionally, can contain Si or Ge atoms, w is 1, 2 or 3, z is 0 or 1, and y=3-w-z; and (c) water. The molar ratio of aluminum to water is from 1:1 to 100:1. The catalysts show an improved activity with respect to known catalysts wherein an aluminum compound different from those of the invention are used.

    摘要翻译： 用于烯烃聚合的催化剂，其包含（a）钛，锆或铪的桥连和/或取代的环戊二烯基化合物的反应产物; （b）式A1（CH2-CR4R5R6）wR7yHz的有机金属铝化合物，其中在相同或不同的（CH2-CR4R5R6）基团中，R4是具有1至10个碳原子的烷基，烯基或芳基烷基 R 5是具有3至50个碳原子的烷基，烯基，芳基，芳基烷基或烷基芳基，并且任选地，R 4和R 5可以一起稠合形成具有4-6个碳原子的环，R 6是氢或烷基 具有1-10个碳原子的链烯基或芳基烷基，相同或不同的R 7取代基是具有1-10个碳原子的烷基，烯基，芳基，芳基烷基或烷基芳基，并且任选地可以含有Si或Ge原子， w为1,2或3，z为0或1，y = 3-wz; 和（c）水。 铝与水的摩尔比为1:1至100:1。 相对于已知的催化剂，催化剂显示出改善的活性，其中使用不同于本发明的铝化合物。

    Process for the (co)polymerization of olefins
    5.
    发明授权
    Process for the (co)polymerization of olefins 失效
    烯烃（共）聚合方法

    公开(公告)号：US6028140A

    公开(公告)日：2000-02-22

    申请号：US865079

    申请日：1997-05-29

    申请人： Gianni Collina ,  Tiziano Dall'occo ,  Maurizio Galimberti ,  Enrico Albizzati ,  Luciano Noristi

    发明人： Gianni Collina ,  Tiziano Dall'occo ,  Maurizio Galimberti ,  Enrico Albizzati ,  Luciano Noristi

    IPC分类号： C08F4/658 ,  C08F2/42 ,  C08F2/48 ,  C08F4/642 ,  C08F4/654 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F10/06 ,  C08F110/06 ,  C08F297/08 ,  C08G63/48

    CPC分类号： C08F297/08 ,  C08F10/00 ,  C08F10/06 ,  C08F110/06 ,  C08F2410/05 ,  C08F4/65912

    摘要： Homopolymers or copolymers obtained by a multistage process of olefins having the formula CH.sub.2 .dbd.CHR, in which R is hydrogen or R has from 1 to 10 carbon atoms and is an alkyl, cycloalkyl or aryl group, the process comprising:(A) a first stage of polymerization in which one or more of the olefins are polymerized in the presence of a titanium or vanadium catalyst;(B) a treatment stage in which the product obtained in the first stage of polymerization (A) is brought into contact with a compound capable of deactivating the catalyst present in the stage (A); and also brought into contact with a compound of a transition metal M selected from the group consisting of Ti, Zr, V, or Hf containing at least one M-.pi. bond and optionally with an alkyl-Al compound; and(C) a second stage of polymerization in which one or more of the olefins are polymerized, in one or more reactors, in the presence of the product obtained in treatment stage (B).

    摘要翻译： 通过具有式CH 2 = CHR的烯烃的多阶段方法获得的均聚物或共聚物，其中R是氢或R具有1至10个碳原子并且是烷基，环烷基或芳基，所述方法包括：（A）第一 其中一种或多种烯烃在钛或钒催化剂存在下聚合的聚合阶段; （B）使在第一阶段（A）中获得的产物与能够使阶段（A）中存在的催化剂失活的化合物接触的处理阶段; 并且还与选自含有至少一个M-π键和任选与烷基-Al化合物的Ti，Zr，V或Hf组成的组中的过渡金属M的化合物接触; 和（C）在一个或多个反应器中，在处理阶段（B）中获得的产物存在下，使一种或多种烯烃聚合的第二阶段聚合。