Patent ID: 6350831
Filing Date: 2002-02-26
Classification: C07F,C08F,Y10S

Abstract:
A process for polymerization of at least one compound selected from the group consisting of &agr;-olefins, linear diolefins, cyclic olefins, cyclic polyenes and aromatic vinyl compounds, comprising polymerizing or copolymerizing said at least one compound in the presence of a polymerization catalyst comprising the following components (A) and (B):(A) a catalyst component comprising a transition metal compound represented by the general formula (1) or (2): (Ra Cp)m(Râ€²b Cp)nM(â€”Xâ€”Arâ€”Yc)4âˆ’(m+n)â€ƒâ€ƒ(1) â€ƒwherein M represents titanium, zirconium or hafnium, Cp represents a radical having the cyclopentadienyl skeleton, R and Râ€² each represents a hydrogen atom, an alkyl, an alkenyl, an aryl, an alkylaryl, an arylalkyl or an alkylsilyl radical, X represents an oxygen or a sulphur atom, Ar represents an aromatic ring, Y represents a hydrogen atom, a hydrocarbon radical, a silyl radical, a halogen atom, a halogenated hydrocarbon radical, a nitrogen-containing organic radical, an oxygen-containing organic radical or a sulphur-containing organic radical, each of a and b is an integer of 0 to 5, each of m and n is an integer of 0 to 3 and m+n is an integer of 1 to 3, and c is an integer of 1 to 5, with a proviso that Y is not a hydrogen atom when Ar is a benzene ring; Râ€³(Rd Cp)(Râ€²e Cp)M(â€”Xâ€”Arâ€”Yc)2â€ƒâ€ƒ(2) â€ƒwherein M represents titanium, zirconium or hafnium, Cp represents a radical having the cyclopentadienyl skeleton, R and Râ€² each represents a hydrogen atom, an alkyl, an alkenyl, an aryl, an alkylaryl, an arylalkyl or an alkylsilyl radical, Râ€³ represents a divalent radical which links (Rd Cp) and (Râ€²e Cp) and is selected from the group consisting of an alkylene, an arylalkylene, a dialkylsilylene, a dialkylgermylene, an alkylphosphindiyl or an alkylimino radical, X represents an oxygen or a sulphur atom, Ar represents an aromatic ring, Y represents a hydrogen atom, a hydrocarbon radical, a silyl radical, a halogen atom, a halogenated hydrocarbon radical, a nitrogen-containing organic radical, an oxygen-containing organic radical or a sulphur-containing organic radical, each of d and e is an integer of 0 to 4, and c is an integer of 1 to 5, with a proviso that Y is not a hydrogen atom when Ar is a benzene ring, and (B) an organic aluminum oxy compound or a cation generator.