| abstract |
A catalyst component for use in the polymerization of α-olefins, comprising a compound represented by the following general formula [I] :n wherein R 1 s represent a hydrogen atom, a C 1-6 hydrocarbon group or a C 1-12 hydrocarbon group containing silicon ; each of R 2 and R 3 independently represents a divalent group selected from the group consisting of a hydrocarbon group having 3 to 30 carbon atoms and a silicon-containing hydrocarbon group having 1 to 30 carbon atoms and 1 to 6 silicon atoms, provided that at least one of R 2 and R 3 is said silicon-containing hydrocarbon group ; Q represents a C 1-20 divalent hydrocarbon group, a silylene group, a silylene group with a C 1-20 hydrocarbon group, a germylene group, or a germylene group with a C 1-20 hydrocarbon group ; X and Y represent H, a halogen, a C 1-20 hydrocarbon group, or a C 1-20 hydrocarbon group containing oxygen, nitrogen or phosphorus; and M represents a Group IVB to VIB transition metal of the Periodic Table. Production of α-olefin polymers having a high melting point and a high molecular weight in a high yield and a process for producing a-olefin polymers is made possible upon the use of the catalyst. |