Metallocenes containing partially hydrogenated p-ligands

Details Metallocenes containing partially hydrogenated p-ligands Metallocenes containing partially hydrogenated p-ligands

C - Chemistry, Metallurgy

07

F

C07F 17/00 (2006.01) C08F 4/622 (2006.01) C08F 10/00 (2006.01) C08F 4/639 (2006.01)

Patent

CA 2219652

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 chlorine 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 < 5, and l+n+p is 2 1, where 1, n, m, o or p can be O, 1, 2 or 3 or R5 to R9 together with the atoms connecting them form one or more rings.

Métallocènes renfermant des ligands P partiellement hydrogénés. L'invention porte sur un métallocène de formule 1 (voir fig. 1) pour la préparation de polyoléfines, où M1 est de préférence Zr, Hf ou Ti, R1 et R2 sont chacun un atome d'hydrogène, un groupe alkyle C1-C3, alcoxy C1-C3, aryle C6-C8, aryloxy C6-C8, alcényle C2-C4, arylalkyle C7-C10, alkylaryle C7-C12, arylalcényle C8-C12 ou chlore, R3 est un atome de chlore, un groupe alkyle C1-C3, alcényle C2-C4, aryle C6-C8, NR162, SR16, OSiR163, SiR163 ou PR162, où R16 est du chlore, un groupe alkyle C1-C4 ou aryle C6-C8. R4 est un atome d'hydrogène, R13 est -(R14M2R15)-, -(P14cR15)-(R14cR15)-l-(R14cR15)-(R14M2R15)- ou -(R14CR15)-, R14 et R15 étant chacun un atome d'hydrogène, de chlore, un groupe Si(méthyl)3, N(méthyl)2, N(phényl)2, Si(phényl)3, B(méthyl)2, B(phényl)2, alkyle C1-C4, notamment un méthyle, un groupe CF3, aryle C6-C12, pentafluorophényle, alcoxy C1-C4, notamment un méthoxy, un groupe alcényle C2-C4, arylalkyle C7-C10, arylalcényle C8-C12 ou alkylaryle C7-C12, ou R14 et R15, de concert avec les atomes qui les lient forment un cycle. M2 est du silicium ou du germanium, z est O ou 1, Rx et RY sont identiques, R5 à R9 correspondant à la définition donnée pour R14, avec l+m+n+o+p sup. ou égal à 2 et inf. ou égal à 5, et l+n+p sup. ou égal à 1, où 1, n, m, o ou p peuvent être O, 1, 2 ou 3, ou R5 à R9 forment ensemble avec les atomes qui les lient un ou plusieurs cycles.

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