METALLOCENES CONTAINING PARTIALLY HYDROGENATED P-LIGANDS

    公开(公告)号:CA2219652A1

    公开(公告)日:1998-04-30

    申请号:CA2219652

    申请日:1997-10-30

    Applicant: HOECHST AG

    Abstract: Metallocenes containing partially hydrogenated .pi. ligands The present invention relates to a metallocene of the formula 1, (SEE FIGURE 1) for preparing polyolefins, where M1 is preferably Zr, Hf or Ti, R1 and R2 are each a hydrogen atom, a C1-C3-alkyl group, a C1-C3-alkoxy group, a C6-C8-aryl group, a C6-C8-aryloxy group, a C2-C4-alkenyl group, a C7-C10-arylalkyl group, a C7-C12-alkylaryl group, a C8-C12-arylalkenyl group or chlorine, R3 is a chlori ne atom, a C1-C3-alkyl group, a C2-C4 alkenyl group, a C6-C8-aryl group, an NR162, SR16, OSiR163, SiR163 or PR162 radical where R16 is chlorine, a C1-C4-alkyl group or a C6-C8-aryl group. R4 is a hydrogen atom, R13 is -(R14M2R15)-, (P14cR15)-(R14cR15)-l -(R14cR15)-(R14M2R15)- or-(R14CR15)-, where R14 and R15 are each a hydrogen atom, chlorine, an Si(methyl)3 group, an N(methyl)2 group, an N(phenyl)2 group, an Si(phenyl)3 group, a B(methyl)2 group, a B(phenyl)2 group, a C1-C4-alkyl group, in particular a methyl group, a CF3 group, a C6-C12-aryl group, a pentafluorophenyl group, a C1-C4-alkoxy group, in particular a methoxy group, a C2-C4-alkenyl group, a C7-C10-arylalkyl group, a C8-C12-arylalkenyl group or a C7-C12-alkylaryl group, or R14 and R15 together with the atoms connecting them form a ring, M2 is silicon or germanium, z is O or 1, Rx and RY are identical where R5 to R9 are as defined for R14, and l+m+n+o+p 2 2 and

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