Polymerization process
    4.
    发明授权
    Polymerization process 失效
    聚合过程

    公开(公告)号:US06300437B1

    公开(公告)日:2001-10-09

    申请号:US08904437

    申请日:1997-07-31

    IPC分类号: C08F442

    摘要: A process for preparing polyolefins having at least 0.01 long chain branches (LCB)/1000 carbon atoms along the polymer backbone as measured by flow activation and a molecular weight distribution greater than 2.5 comprises polymerization in the presence of a metallocene complex having the formula: wherein Cp1, Cp2 are independently a substituted or unsubstituted indenyl or hydrogenated indenyl group, Y is a univalent anionic ligand, M is zirconium, titanium or hafnium, and Z is a bridging group comprising an alkylene group having 1 to 20 carbon atoms or a dialkyl silyl- or germyl- group, or alkyl phophine or amine radical. Polyolefins prepared from such a process show specific flow activation energy/LCB relationships.

    摘要翻译: 通过流动活化和大于2.5的分子量分布测量,制备沿着聚合物主链具有至少0.01个长支链(LCB)/ 1000个碳原子的聚烯烃的方法包括在具有下式的茂金属络合物存在下聚合:其中Cp1 ,Cp2独立地是取代或未取代的茚基或氢化茚基,Y是一价阴离子配体,M是锆,钛或铪,Z是包含具有1至20个碳原子的亚烷基的桥连基或二烷基甲硅烷基或 甲锗烷基或烷基磷或胺基。 从这种方法制备的聚烯烃显示出特定的流动活化能/ LCB关系。

    Polyolefin
    6.
    发明授权
    Polyolefin 有权
    聚烯烃

    公开(公告)号:US06258912B1

    公开(公告)日:2001-07-10

    申请号:US09353653

    申请日:1999-07-15

    IPC分类号: C08F21000

    摘要: A process for preparing polyolefins having at least 0.01 long chain branches (LCB)/1000 carbon atoms along the polymer backbone as measured by flow activation and a molecular weight distribution greater than 2.5 comprises polymerization in the presence of a metallocene complex having the formula: wherein Cp1, Cp2 are independently a substituted or unsubstituted indenyl or hydrogenated indenyl group, Y is a univalent anionic ligand, M is zirconium, titanium or hafnium, and Z is a bridging group comprising an alkylene group having 1 to 20 carbon atoms or a dialkyl silyl- or germyl- group, or alkyl phophine or amine radical. Polyolefins prepared from such a process show specific flow activation energy/LCB relationships.

    摘要翻译: 通过流动活化和大于2.5的分子量分布测量,制备沿着聚合物主链具有至少0.01个长支链(LCB)/ 1000个碳原子的聚烯烃的方法包括在具有下式的茂金属络合物存在下聚合:其中Cp1 ,Cp2独立地是取代或未取代的茚基或氢化茚基,Y是一价阴离子配体,M是锆,钛或铪,Z是包含具有1至20个碳原子的亚烷基的桥连基或二烷基甲硅烷基或 甲锗烷基或烷基磷或胺基。 从这种方法制备的聚烯烃显示出特定的流动活化能/ LCB关系。

    Polymerization catalyst
    7.
    发明授权
    Polymerization catalyst 失效
    聚合催化剂

    公开(公告)号:US06828398B2

    公开(公告)日:2004-12-07

    申请号:US10181802

    申请日:2002-11-15

    IPC分类号: C08F444

    摘要: A complex suitable for use as a catalyst in the polymerisation of olefins is disclosed, having the Formula (I) wherein M is a transition metal; X represents an atom or group covalently or ionically bonded to M; T is the oxidation state of M; b is the valency of the atom or group X; A1 to A3 are each independently N or P or CR, with the proviso that at least one but no more than two of them are independently CR; Y1 and Y2 are each independently CR′ or PR′R″; Z is oxygen or NR5, R5 and R7 and each R, each R′ and each R″ are independently selected from hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl, substituted heterohydrocarbyl or SiR303 where each R30 is independently selected from hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl and substituted heterohydrocarbyl; but excluding those complexes having the formulae (1) and (2) where in both cases R4 and R6 are Me, R5 and R7 are 2, 4, 6-trimethylphenyl, M is Fe, T is II, X is Cl and b is 1

    摘要翻译: 公开了一种适合用作烯烃聚合中催化剂的络合物,其具有式(I),其中M是过渡金属; X表示与M共价或离子键合的原子或基团; T是M的氧化态; b是原子或基团X的化合价; A 1至A 3各自独立地为N或P或CR,条件是其中至少一个但不多于两个独立地为CR; Y 1和Y 2各自独立地为CR'或PR'R“; Z是氧或NR 5,R 5和R 7,每个R,每个R'和每个R“独立地选自氢,卤素,烃基,取代的烃基,杂烃基,取代的杂烃基或SiR 30> 3,其中每个R 30独立地选自氢,卤素,烃基,取代的烃基,杂烃基和取代的杂烃基; 但不包括具有式(1)和(2)的那些络合物,其中在两种情况下,R 4和R 6均为Me,R 5和R 7为2,4,6-三甲基苯基,M为 Fe,T为II,X为Cl且b为1

    Polymerisation catalyst
    8.
    发明授权
    Polymerisation catalyst 有权
    聚合催化剂

    公开(公告)号:US07365139B2

    公开(公告)日:2008-04-29

    申请号:US11633561

    申请日:2006-12-05

    IPC分类号: C08F4/42

    CPC分类号: C07F15/065 C07F15/025

    摘要: A complex of transition metal Ti, Fe, Co, Ni, Cr, Mn, Ta, Rh, Y, Sc, Ru, Pd, Zr, Hf, V or Nb and a mono-, bi-, tri-, or tetra-dentate ligand, wherein at least one of the donor atoms of the ligand is a nitrogen atom N with a 5-membered heterocyclic substituent joined to the N by a carbon atom. The complex is preferably Formula (I) wherein R5—N-G-X1 is a bi-, tri, or tetra-dentate ligand, N is joined to G by an imine linkage; G is a bridging group which can contain a third or fourth donor atom; X1 is —O or —S if the X1-M bond is covalent, or if the X1-M bond is dative X1 is ═S, —PR7R8, —PR8R9, ═NR7, ═NR8, —NR7R8 or —NR8R9; R5 and R7 are 5-membered heterocyclic substituents joined to the nitrogen (or phosphorus) atoms via a carbon atom: R8 and R9 are hydrocarbyl or heterohydrocarbyl, substituted hydrocarbyl or aryl substituent; X represents an atom or group covalently or ionically bonded to the transition metal M: L is a group datively bound to M, and n is from 0 to 5; q is 1 or 2. The complexes find use as polymerisation catalysts, preferably with an activator, e.g. MAO

    摘要翻译: 过渡金属Ti,Fe,Co,Ni,Cr,Mn,Ta,Rh,Y,Sc,Ru,Pd,Zr,Hf,V或Nb和单 - ,双 - ,三 - 齿状配体,其中配体的至少一个供体原子是具有通过碳原子连接到N的5元杂环取代基的氮原子N。 络合物优选式(I)其中R 5 -NGX 1是双,三或四齿配体,N通过亚胺键与G连接 ; G是可以含有第三或第四供体原子的桥连基团; 如果X 1 -M键是共价的,则X 1是-O或-S,或者如果X 1 -M键是二价X S 1〜S 8是-S,-PR 7 R 8,-PR 8,9,9 ,-NR 7,-NR 8,-NR 7 R 8或-NR 8 9 R 5和R 7是通过碳原子连接到氮(或磷)原子上的5元杂环取代基:R 8和R 烃基或杂烃基,取代的烃基或芳基取代基; X表示与过渡金属M共价或离子键合的原子或基团:L是与M直接键合的基团,n为0至5; q为1或2.配合物可用作聚合催化剂,优选使用活化剂,例如。 MAO