Catalysts for polymerization of alpha-olefins, process for producing alpha-olefin polymers, novel transition metal compounds and catalyst components for polymerization of alpha-olefin
AssigneeMitsubishi Chemical Corporation
InventorsToshihiko Sugano, Masami Kashimoto, Taku Kato
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Abstract
The present invention relates to a catalyst for polymerization of α-olefin, which comprises: an essential component (A) of a transition metal compound, an essential component (B) of an ion exchangeable layer compound except for silicate, or an inorganic silicate, and an optional component (C) of an organoaluminum compound, said component (A) being represented by the general formula (I): 1
Claims28
A catalyst for polymerization of α-olefin, which comprises:
- an essential component (A) of a transition metal compound,
- an essential component (B) of an ion exchangeable layer compound except for silicate, or an inorganic silicate, and
- an optional component (C) of an organoaluminum compound,
- said component (A) being represented by the general formula (I):
- 19
- wherein A1 and A2 are independently a conjugate 5-membered ring ligand with the proviso that A1 and A2 may be the same or different in a molecule, and at least one of A1 and A2 forms a 7- to 10-membered condensed ring including adjacent two carbon atoms of the conjugate 5-membered ring, which condensed ring is formed by joining two adjacent substituent groups on the conjugate 5-membered ring;
- Q is a bridging group of the two conjugate 5-membered rings of A1 and A2 at optional positions of the 5-membered rings;
- M is a metal atom selected from the group consisting of elements belonging to Group 4-6 of the Periodic Table;
- and X and Y are independently a hydrogen atom, a halogen atom, a hydrocarbon group, an amino group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a nitrogen-containing hydrocarbon group, a phosphorus-containing hydrocarbon group or a silicon-containing hydrocarbon group.
A catalyst for polymerization of α-olefin, which comprises:
- an essential component (A) of a transition metal compound;
- an essential component (D) of an aluminumoxy compound;
- an ionic compound capable of reacting with the component (A) so as to convert the component (A) to a cation, or a Lewis acid;
- and
- an optional component (E) of a fine particle carrier, said component (A) being represented by the above-mentioned general formula (II), general formula (III), general formula (IV), general formula (V) or general formula (VI).
A novel transition metal compound represented by the general formula (II).
A novel transition metal compound represented by the general formula (III)
A novel transition metal compound represented by the general formula (IV).
A novel transition metal compound represented by the general formula (V).
A novel transition metal compound represented by the general formula (VI).
A catalyst component comprising a novel transition metal compound represented by the general formula (II).
A catalyst component comprising a novel transition metal compound represented by the general formula (III).
A catalyst component comprising a novel transition metal compound represented by the general formula (IV).
A catalyst component comprising a novel transition metal compound represented by the general formula (V).
A catalyst component comprising a novel transition metal compound represented by the general formula (VI).
Dependencies are inferred from the claim text.