Heterocyclic metallocene compounds and use thereof in catalyst systems for producing olefin polymers.

摘要

A metallocene compounds of the general formula (I):
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒLGZMXp€ƒ€ƒ€ƒ€ƒ€ƒ(I)
wherein L is a divalent group, Z is a moiety of formula (II):
wherein R 3 and R 4 are selected from hydrogen and hydrocarbon groups; A and B are selected from S, O or CR 5 , wherein R 5 is selected from hydrogen and hydrocarbon groups, either A or B being different from CR 5 ; G is a moiety of formula (III):
wherein R 6 , R 7 , R 8 and R 9 are selected from hydrogen and hydrocarbon groups, M is an atom of a transition metal X is selected from a halogen atom, a R 10 , OR 10 , OSO 2 CF 3 , OCOR 10 , SR 10 , NR 10 2 or PR 10 2 group, wherein the substituents R 10 is hydrogen and a hydrocarbon group; p is an integer from 0 to 3.