Catalyst component for the polymerisation of olefins and process for preparing olefin polymers using same.

摘要

A catalyst component for use in the polymerization or copolymerization of olefin(s) is obtained by contacting the following components (1) to (4) with one another: (1) a compound of the general formula Me<1>R<1>p(OR<2>)qX<1>4-p-q where R<1> is a hydrocarbon radical having 1 to 24 carbon atoms, X<1> is a halogen atom, Me<1> is Zr, Ti or Hf, and n is 0 </= n </= 4; (2) a compound of the general formula Me<2>R<3>m(OR<4>)nX<2>z-m-n where R<2> is a hydrocarbon radical having 1 to 24 carbon atoms, X<2> is a halogen atom, Me<2> is an element from Groups I to III in the Periodic Table, z is the valence of Me<2> and m is 0 </= m </= z; (3) an organocyclic compound having two or more conjugated double bonds; and (4) a modified organoaluminum compound containing Al-O-Al bond and with at least one branched-chain alkyl group being attached to aluminum atom.