知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

131 条记录 (耗时 0.035 秒)

    Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and preparation of polyolefins
    10.
    发明申请
    Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and preparation of polyolefins 有权

    公开(公告)号：US20040260107A1

    公开(公告)日：2004-12-23

    申请号：US10496142

    申请日：2004-05-20

    发明人： Markus Oberhoff ,  Yoshikuni Okumura ,  Jorg Schottek ,  Jorg Schulte

    IPC分类号： C07F017/00

    CPC分类号： B01J31/143 ,  B01J31/2295 ,  B01J2531/30 ,  B01J2531/40 ,  B01J2531/48 ,  B01J2531/50 ,  B01J2531/60 ,  C07F7/081 ,  C07F17/00 ,  C08F4/65912 ,  C08F4/65916 ,  C08F10/00 ,  C08F110/06 ,  C08F210/00 ,  Y10S526/941 ,  Y10S526/943 ,  C08F4/65927 ,  C08F2500/17 ,  C08F2500/15 ,  C08F2500/03 ,  C08F210/16

    摘要： Organometallic transition metal compounds of the formula (I) where M1 is an element of group 3, 4, 5 or 6 of the Periodic Table of the Elements or the lanthanides; X are identical or different and are each halogen, hydrogen, C1-C20-alkyl, C2-C20-alkenyl, C6-C22-aryl, alkylaryl or arylalkyl having from 1 to 10 carbon atoms in the alkyl part and from 6 to 22 carbon atoms in the aryl part, nullOR5 or nullNR5R6, where two radicals X may also be joined to one another or two radicals X may together form a substituted or unsubstituted diene ligand, in particular a 1,3-diene ligand; where R5 and R6 are each C1-C10-alkyl, C6-C15-aryl, alkylaryl, arylalkyl, fluoroalkyl or fluoroaryl each having from 1 to 10 carbon atoms in the alkyl radical and from 6 to 22 carbon atoms in the aryl radical; n is a natural number from 1 to 4 which is equal to the oxidation number of M1 minus 2; R1 is a C2-C40 radical which is branched in the null position; R2 is hydrogen or a C1-C40 radical which may be branched or unbranched in the null position; R3, R3a and R3b are identical or different and are each hydrogen or a C1-C40 radical, where at least one of the radicals R3, R3a, R3b is not hydrogen; R4 is a substituted or unsubstituted C6-C40-aryl radical or C2-C40-heteroaromatic radical containing at least one heteroatom selected from the group consisting of O, N, S and P; T is a divalent C1-C40 group which together with the cyclopen tadienyl ring forms a further saturated or unsaturated ring system having a ring size of from 5 to 12 atoms, where T may contain the heteroatoms Si, Ge, N, P, O or S withing the ring system fused onto the cyclopentadienyl ring; and Z is a bridge consisting of a divalent atom or a divalent group, can be used in catalyst systems for preparing polyolefins by polymerization or copolymerization of at least one olefin. Biscyclopentadienyl ligand systems which have such a substitution pattern and can be used for preparing these organometallic transition metal compounds are also provided. 1