Patent ID: 6610872
Filing Date: 2003-08-26
Classification: C08G

Abstract:
A zirconium complex represented by the following formula: wherein L1 represents a first group selected from the group consisting of:(a) a group represented by the following formula (I): wherein R1 stands for an alkyl group having no more than 3 carbon atoms, and p represents an integer of 2 or 3, (b) a group represented by the following formula (II): wherein R2 stands for an alkyl group having no more than 3 carbon atoms, and q represents an integer of 2 or 3, and (c) a group represented by the following formula (III): wherein R3 stands for an alkyl group having no more than 3 carbon atoms, and m represents an integer of 1-4, L2 represents a second group selected from the group consisting of:(d) a cyclopentadienyl group represented by the formula (IV): and (e) a pentamethylcyclopentadienyl group represented by the formula (V): and each of L3 and L4 is chlorine.