Patent ID: 7345119

Claim:
An olefin polymerization solid catalyst comprising a reaction product of(C) a transition metal compound of the following formula (1) or (2) and (D) a trialkylaluminum compound supported on a support having (A) silica treated with (B) an organoaluminum-oxy compound; (R 1 a Cp) m (R 2 b Cp) n M-(—X—Ar-Yc) 4−(m+n) (1) wherein M is titanium, zirconium or hafnium, Cp is a group having a cyclopentadienyl structure, R 1 and R 2 are each a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an alkylaryl group, an arylalkyl group or an alkylsilyl group, X is an oxygen atom or a sulfur atom, Ar is an aromatic ring, Y may be the same or different and is a hydrogen atom or a substituent selected from the group consisting of a hydrocarbon group, an alkylsilyl group, a halogen atom, a halogenated hydrocarbon group, a nitrogen-containing organic group, an oxygen-containing organic group or a sulfur-containing organic group, a and b are each an integer of from 0 to 5, m and n are each an integer of from 0 to 3, m+n is an integer of from 1 to 3, and c is an integer of from 1 to 5, provided that Y is not hydrogen when Ar is a benzene ring, R 3 (R 1 d Cp)(R 2 e Cp)M-(—X—Ar-Yc) 2 (2) wherein M is titanium, zirconium or hafnium, Cp is a group having a cyclopentadienyl structure, R 1 and R 2 are each a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an alkylaryl group, an arylalkyl group or an alkylsilyl group, R 3 is a divalent group selected from the group consisting of an alkylene group, an arylalkylene group, a dialkylsilylene group, a dialkylgermylene group, an alkylphosphinediyl group or an alkylimino group, which crosslinks (R 1 dCp) and (R 2 eCp), X is an oxygen atom or a sulfur atom, Ar is an aromatic ring, Y may be the same or different and is a hydrogen atom or a substituent selected from the group consisting of a hydrocarbon group, an alkylsilyl group, a halogen atom, a halogenated hydrocarbon group, a nitrogen-containing organic group, an oxygen-containing organic group and a sulfur-containing organic group, d and e are each an integer of from 0 to 4, and c is an integer of from 1 to 5, provided that Y is not hydrogen when Ar is a benzene ring, wherein the catalyst is prepared, in a solvent or in the absence of a solvent, by contacting the reaction product of (C) and (D), with (A) treated with (B).