Catalyst component for polymerization of alpha-olefins and process for producing alpha-olefin polymers using the same

摘要

A catalyst component for the polymerization of alpha-olefins, represented by the following formula [I]: wherein R1-R3=H, a halogen, a C1-10 hydrocarbon radical, a Si-containing C1-18 hydrocarbon radical, or a halogen-containing C1-10, hydrocarbon radical (provided that R1 and R2 cannot be hydrogen at the same time); n=2 to 7; Q=a C1-20 hydrocarbon radical, a silylene or oligosilylene group having or not having a C1-20 hydrocarbon radical, a germylene group having or not having a C1-20 hydrocarbon radical; X and Y=H, a halogen, a C1-20 hydrocarbon radical, or an O- or N-containing C1-20 hydrocarbon radical; and M=a transition metal selected from the groups IVB-VIB; a catalyst for the polymerization of alpha-olefins, comprising the catalyst component; and a process for producing alpha-olefin polymers, where use is made of the catalyst. Use of the catalyst will produce alpha-olefin polymers having a high melting point and a high molecular weight in a high yield.