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    • 3. 发明申请
    • Alpha olefin catalyst systems
    • α-烯烃催化剂体系
    • US20050165184A1
    • 2005-07-28
    • US11085969
    • 2005-03-21
    • John Ewen
    • John Ewen
    • C08F4/44
    • C08F110/06C08F4/65912Y10S526/943C08F10/00C08F4/65927C08F4/6492C08F2500/02C08F2500/03C08F2500/15C08F2500/17
    • The present invention provides a method for varying the melting points and molecular weights of polyolefins by changing the structure of the catalyst used in the polymerization. The catalysts that are useful in the present invention are chiral, stereorigid metallocene catalyst of the formula R″(C5R′m)2MeQ. The catalysts include a bridge structure between the (C5R′m) groups and may contain substituents on the groups. It has been discovered that the melting points and molecular weights of the polymers produced by such catalysts are influenced by the bridge and substituents added to the (C5R′m) groups. Thus, the present invention provides a method for varying the melting points of the polymer product and a method of varying the molecular weights of the product by changing the components and structure of the metallocene catalysts. The present invention also provides a process for polymerizing olefins in which the melting points and/or molecular weights of the product may be controlled. Also included in the invention is the discovery that the melting points of the products are controlled by the number of inversions in the xylene insoluble fraction of the polymer.
    • 本发明提供了通过改变聚合中使用的催化剂的结构来改变聚烯烃的熔点和分子量的方法。 可用于本发明的催化剂是式R“(C 5 R'm)2的手性,立体刚性茂金属催化剂 MeQ。 催化剂包括在(C 5 -C 15)m N基团之间的桥结构,并且可以在基团上含有取代基。 已经发现,由这种催化剂制备的聚合物的熔点和分子量受到加入到(C 5 -C 15)基团中的桥和取代基的影响 。 因此,本发明提供了改变聚合物产物的熔点的方法和通过改变茂金属催化剂的组分和结构来改变产物分子量的方法。 本发明还提供了可以控制产物的熔点和/或分子量的烯烃聚合方法。 本发明还包括以下发现:产物的熔点由聚合物的二甲苯不溶部分的反转次数控制。
    • 6. 发明申请
    • Organometallic Transition Metal Compound, Biscyclopentadienyl Ligand System, Catalyst System and Process for Preparing Polyolefins
    • US20070260025A1
    • 2007-11-08
    • US10578059
    • 2004-11-02
    • Michael ElderRobert JonesJohn Ewen
    • Michael ElderRobert JonesJohn Ewen
    • B01J31/16C07D209/56C07D307/93C07D311/00C07D333/00C07D333/52C07D345/00C07F11/00C07F17/00C07F7/00C07F7/02C07F9/02C07F9/28C07F9/74C07F9/90C08F4/42
    • C07D333/54C07F7/0814C08F4/65912C08F10/00C08F110/02C08F110/06C08F210/06C08F4/65927C08F2500/17C08F2500/15C08F2500/03C08F210/16
    • The present invention relates to organometallic transition metal compounds of the formula (I) M1 is a metal of group 3, 4, 5 or 6 of the Periodic Table of the Elements or the lanthanicles, X are identical or different and are each an organic or inorganic radical, where two radicals X can also be joined to one another, n is a natural number from 1 to 4, T1, T2 are identical or different and are each a divalent group selected from the group consisting of —O—, —S—, —Se—, —Te—, —N(R13)_′—P(R13)—, —As(R13)—, Sb(R13)—, —Si(R13)2-, —C(R13 R14)—C(R13 R15)— and —C(R14)═C(R15)—, where R13, R14 and R15 are identical or different and are each hydrogen or an organic radical having from 1 to 40 carbon atoms, R1, R7 are identical or different and are each hydrogen or an organic radical having from 1 to 40 carbon atoms, R2 R8 are identical or different and are each hydrogen or an organic radical having from 1 to 40 carbon atoms, R3 R9 are identical or different and are each halogen or an organic radical having from 1 to 40 carbon atoms, where R3 is not methyl when T1 is —C(H)═C(H)—, R4, R5 R6, R10, R11 and R12 are identical or different and are each hydrogen, halogen or an organic radical having from 1 to 40 carbon atoms, or two adjacent radicals R4 , R5, R6, R10, R11 and R12 together with the atoms connecting them form a monocyclic or polycyclic, substituted or unsubstituted ring system which has from 1 to 40 carbon atoms and may also contain heteroatoms selected from the group consisting of the elements O, S, Se, Te, N, P, As, Sb and Si, or, if T1 or T2 is —O—, —S—, —Se— or —Te—, the radical R3 together with R4 and/or the radical R9 together with R10 forms a monocyclic or polycyclic, substituted or unsubstituted ring system which has from 1 to 40 carbon atoms and may also contain heteroatoms selected from the group consisting of the elements O, S, Se, Te, N, P, As, Sb and Si, and A is a bridge consisting of a divalent atom or a divalent group, biscyclopentadienyl ligand systems having such a substitution pattern, catalyst systems comprising at least one of the organometallic transition metal compounds of the present invention, a process for preparing polyolefins by polymerization or copolymerization of at least one olefin in the presence of one of the catalyst systems of the present invention and the polyolefins obtainable in this way, the use of the biscyclopentaclienyl ligand systems of the present invention for preparing organometallic transition metal compounds and a process for preparing organometallic transition metal compounds using the biscyclopentaclienyl ligand systems.
    • 8. 发明申请
    • Polymerization catalysts, organic transition metal compounds, process for preparing polyolefins and polyolefins
    • 聚合催化剂,有机过渡金属化合物,制备聚烯烃和聚烯烃的方法
    • US20060100092A1
    • 2006-05-11
    • US10543961
    • 2004-02-05
    • Robert JonesNaka SeidelMichael ElderJohn Ewen
    • Robert JonesNaka SeidelMichael ElderJohn Ewen
    • B01J31/00
    • C08F10/06C07F7/003C08F4/65912C08F4/65916C08F10/00C08F110/06C08F210/06C08F210/16C08F2410/03C08F4/65927C08F2500/17C08F2500/15C08F2500/03C08F2500/26C08F4/025C08F4/64189C08F4/69474
    • The present invention relates to catalyst systems for preparing isotactic polyolefins obtainable by reacting at least one chiral transition metal compound and at least one cocatalyst which is able to convert the chiral transition metal compound into a cation, where the chiral transition metal compound contains two bidentate chelating ligands connected to one another via a bridge and, if desired, one or two further monodentate ligands, with the four coordinating atoms of the two chelating ligands being in an approximately planar arrangement around the transition metal ion and up to two further ligands being located above and below this approximately planar coordination sphere formed by the four coordinating atoms of the two chelating ligands and, in the case of two such further ligands, these being in the trans position relative to one another, to the use of the catalyst systems of the present invention for preparing polyolefins, to a process for preparing polyolefins by polymerization or copolymerization of at least one olefin in the presence of one of the catalyst systems of the present invention, to the use of chiral transition metal compounds for preparing a catalyst system for the polymerization of olefins, to chiral transition metal compounds, to a process for preparing a catalyst system for olefin polymerization, to a process for preparing isotactic polyolefins, to polyolefins obtainable by a process according to the present invention, to polyolefin compositions comprising the polyolefins of the present invention and to products produced from such polyolefin compositions.
    • 本发明涉及用于制备全同立构聚烯烃的催化剂体系,其通过使至少一种手性过渡金属化合物和能够将手性过渡金属化合物转化为阳离子的至少一种助催化剂反应而获得,其中手性过渡金属化合物含有两个二齿螯合 配体通过桥连接并且如果需要,一个或两个另外的单齿配体,两个螯合配体的四个配位原子在过渡金属离子周围处于大致平面的布置,并且多达两个另外的配体位于上面 并且在由两个螯合配体的四个配位原子形成的该近似平面的配位球之下,在两个这样的另外的配体的情况下,它们相对于彼此处于反式位置,使用本发明的催化剂体系 用于制备聚烯烃的方法,通过聚合制备聚烯烃的方法 或在本发明的一种催化剂体系存在下至少一种烯烃的共聚合使用手性过渡金属化合物用于制备用于烯烃聚合的催化剂体系,至手性过渡金属化合物的方法, 制备用于烯烃聚合的催化剂体系,制备全同立构聚烯烃的方法,可通过本发明的方法获得的聚烯烃包含本发明聚烯烃的聚烯烃组合物和由这种聚烯烃组合物制备的产品。