Patent ID: 6057467
Filing Date: 2000-05-02
Classification: B01J,C07F,C08F,Y10S

Abstract:
A metallocene adduct consisting of a metallocene compound, an ether and a metal halide, wherein said adduct has a composition of the general formula as follows:Cp'MQ.sub.2.RXR'.nM'Q.sub.2/nwhere Cp' is a metallocene ligand selected from a non-bridge-linked type of dicyclopentadiene-derivative group; said cyclodipentadiene-derivative group is selected from cyclopentadienyl, indenyl or fluorenyl; said cyclopentadiene-derivative group in the ligand may be the same or different, which may contain one or more substituents selected from C.sub.1 .about.C.sub.12 alkyl, alkoxy, silyl, aryl or aralkoxy groups,M is one of the elements selected from Group IVB of the Period Table of Elements;Q is selected from halogen;RXR' is ether or cyclic ether, R and R' may be the same or different which is selected from alkyl of C.sub.3 .about.C.sub.6, X is oxygen;M' is selected from alkali metal or alkali earth metal;n=1 or 2, when the M' is alkali metal, n=2; when the M' is alkali earth metal, n=1.