Process for the preparation of polyolefins
    1.
    再颁专利
    Process for the preparation of polyolefins 有权
    制备聚烯烃的方法

    公开(公告)号:USRE39156E1

    公开(公告)日:2006-07-04

    申请号:US09488037

    申请日:2000-01-19

    IPC分类号: C07F17/00 C08F4/642 B01J31/00

    摘要: A process for the preparation of an olefin polymer by polymerization or copolymerization of an olefin of the formula Ra—CH═CH—Rb, in which Ra and Rb are identical or different and are a hydrogen atom or a hydrocarbon radical having 1 to 14 carbon atoms or Ra and Rb, together with the atoms connecting them, can form a ring, at a temperature of from −60° to 200° C., at a pressure of from 0.5 to 100 bar, in solution, in suspension or in the gas phase, in the presence of a catalyst formed from a metallocene in the meso-form or a meso:rac mixture, with meso:rac>1:99, as transition-metal compound and a cocatalyst, wherein the metallocene is a compound of the formula I, in which M1 is Zr or Hf, R1 and R2 are identical or different and are methyl or chlorine, R3 and R6 are identical or different and are methyl, isopropyl, phenyl, ethyl or trifluoromethyl, R4 and R5 are hydrogen or as defined for R3 and R6, or R4 forms an aliphatic or aromatic ring with R6, or adjacent radicals R4 form a ring of this type, and R7 is a radical, and m plus n is zero or 1.

    摘要翻译: 一种制备烯烃聚合物的方法,该方法是通过使式R a -O-CH-CH-R b的烯烃聚合或共聚制备烯烃聚合物,其中R a R 1和R 2彼此相同或不同,是氢原子或具有1至14个碳原子的烃基或R a a和R b, / SUP>与连接它们的原子一起可以在-60°至200℃的温度下,在0.5至100巴的压力下,在溶液中,悬浮液中或在气相中形成环 在由外消旋混合物中内消旋的茂金属形成的催化剂存在下,外消旋体>外消旋体> 1:99,作为过渡金属化合物和助催化剂,其中金属茂是式 I,其中M 1是Zr或Hf,R 1和R 2相同或不同,是甲基或氯,R SUP > 3和R 6相同或不同,为甲基,异丙基,苯基,乙基或三氟甲基,R 4和 R 5是氢或根据R 3和R 6定义,R 6或R 4还可以是脂族或芳族的 与R 6相连,或相邻基团R 4形成这种环,R 7是一个基团,m + n是 零或1。

    Process for the preparation of polyolefins
    2.
    发明授权
    Process for the preparation of polyolefins 失效
    制备聚烯烃的方法

    公开(公告)号:US06359095B1

    公开(公告)日:2002-03-19

    申请号:US09428843

    申请日:1999-10-28

    IPC分类号: C08F1014

    摘要: A process for the preparation of an olefin polymer by polymerization or copolymerization of an olefin of the formula Ra—CH═CH—Rb, in which Ra and Rb are identical or different and are a hydrogen atom or a hydrocarbon radical having 1 to 14 carbon atoms, or Ra and Rb, together with the atoms connecting them, can form a ring, at a temperature of from −60 to 200° C., at a pressure of from 0.5 to 100 bar, in solution, in suspension or in the gas phase, in the presence of a catalyst formed from a metallocene in the meso-form or a meso:rac mixture, with meso:rac>1:99, as transition-metal compound and a cocatalyst, wherein the metallocene is a compound of the formula I, in which M1 is Zr or Hf, R1 and R2 are identical or different and are methyl or chlorine, R3 and R4 are identical or different and are methyl, isopropyl, phenyl, ethyl or trifluoromethyl, R4 and R5 are hydrogen or as defined for R3 and R6, or R4 forms an aliphatic or aromatic ring with R6, or adjacent radicals R4 form a ring of this type, and R7 is a radical, and m plus n is zero or 1.

    摘要翻译: 通过聚合或共聚式Ra-CH = CH-Rb的烯烃制备烯烃聚合物的方法,其中Ra和Rb相同或不同,并且是氢原子或具有1至14碳原子的烃基 原子或R a和R b与连接它们的原子一起可以在-60至200℃的温度下,在0.5至100巴的压力下,在溶液中,悬浮液中或在 在由外消旋混合物中内消旋金属茂或内消旋混合物形成的催化剂的存在下,作为过渡金属化合物和助催化剂,其中金属茂为化合物 式中,M1为Zr或Hf,R1和R2相同或不同,为甲基或氯,R3和R4相同或不同,为甲基,异丙基,苯基,乙基或三氟甲基,R4和R5为氢或 如R3和R6所定义,或R4与R6形成脂族或芳环,或相邻基团R4形成环o f这种类型,而R7是aradical,m加n是零或1。

    Polyolefins prepared with metallocene catalysts having 2-substituted indenyl type ligands
    10.
    再颁专利
    Polyolefins prepared with metallocene catalysts having 2-substituted indenyl type ligands 失效
    用具有2-取代茚基型配体的茂金属催化剂制备的聚烯烃

    公开(公告)号:USRE37208E1

    公开(公告)日:2001-06-05

    申请号:US08324260

    申请日:1994-10-17

    IPC分类号: C08F11000

    摘要: The novel metallocenes of the formula I in which, preferably, M1 is Zr or Hf, R1 and R2 are alkyl or halogen, R3 and R4 are hydrogen, R5 and R6 are alkyl or haloalkyl, —(CR8R9)m—R7—(CR8R9)n— is a single- or multi-membered chain in which R7 may also be a (substituted) hetero atom, m+n is zero or 1, and R10 is hydrogen, form, together with aluminoxanes as cocatalysts, a very effective catalyst system for the preparation of polyolefins or high stereospecificity and high melting point. Polyolefins with unique or improved properties are obtained by polymerizing an olefin in the presence of a metallocene combined with a cocatalyst, wherein the metallocene is preferably a zirconocene or a hafnocene, and the Zr or Hf central atom is coordinated with two ligands which are derivatives of 2-substituted indenyl nuclei and which are substituted with at least one and up to four groups (e.g. aliphatic or aromatic groups) on the six-member rings of the indenyl nuclei. The indenyl nuclei are optionally substituted at the 3-position and are joined by a 1,1′-bridge of the formula —(CR8R9)m—R7—(CR8R9)n—, which is a single- or multi-membered chain in which R7 can also be a (substituted) hetero atom, m and n are identical or different and are zero, 1, or 2, and m+n is zero, 1, or 2.

    摘要翻译: 式中,优选M1为Zr或Hf,R1和R2为烷基或卤素的式Iin的新型茂金属为R3,R4为氢的新型金属茂,“=”20010605“ID =”DEL-S-00001“ R5和R6是烷基或卤代烷基, - (CR8R9)m-R7-(CR8R9)n-是单或多元链,其中R7也可以是(取代的)杂原子,m + n是0或1 ,R10为氢,与铝氧烷一起作为助催化剂形成非常有效的催化剂体系,用于制备聚烯烃或具有高立体定向性和高熔点。 具有独特或改进性能的聚烯烃通过在与助催化剂组合的茂金属存在下聚合烯烃获得,其中茂金属优选为二茂锆或二茂锆,以及 Zr或Hf中心原子与作为2-取代茚基核的衍生物的两个配体配位,并且被至少一个和多达四个基团取代(例如,脂族基团 酰基或芳族基团)在茚基核的六元环上。 茚基核在3-位任选被取代,并且通过式 - (CR 8 R 9)m -R 7 - (CR 8 R 9)n - 的1,1'-桥连接,其是单链或多元链 其中R 7也可以是(取代的)杂原子,m和n相同或不同并且为0,1或2,并且m + n为0,1或2.