摘要:
The present invention is intended to provide an olefin polymerization catalyst comprising a novel transition metal compound and having an excellent olefin polymerization activity and to provide a process for olefin polymerization using this catalyst. The olefin polymerization catalyst comprises a transition metal compound (A-1) represented by the formula (I) or a transition metal compound (A-2) represented by the formula (II), and optionally, at least one compound (B) selected from the group consisting of an organometallic compound (B-1), an organoaluminum oxy-compound (B-2) and a compound (B-3) which reacts with the transition metal compound (A-1) or (A-2) to form an ion pair. wherein M is a transition metal atom of Group 3 to Group 11 of the periodic table; m in the formula (I) is an integer of 1 to 3, and m in the formula (II) is an integer of 1 to 6; Q is -N= or -C(R 2 )=; A is -O-, -S-, -Se- or -N(R 6 )-; R 1 to R 6 are each a hydrogen atom, a hydrocarbon group or the like, and two or more of them may be bonded to form a ring; n is a number satisfying a valence of M; and X is a halogen atom, a hydrocarbon group or the like.
摘要:
A novel class of organometallic complexes can be used as an ingredient of a catalyst system. The catalyst system can be used in polymerizations of ethylenically unsaturated hydrocarbon monomers that include both olefins and polyenes.
摘要:
The present invention is intended to provide an olefin polymerization catalyst comprising a transition metal compound and having an excellent olefin polymerization activity and to provide a process for olefin polymerization using this catalyst. The olefin polymerization catalyst comprises a transition metal compound (A-2) represented by the formula (II-b) and further comprises at least one compound (B) selected from the group consisting of an organometallic compound (B-1), an organoaluminum oxy-compound (B-2) and a compound (B-3) which reacts with the transition metal compound (A-2) to form an ion pair.
(wherein M, m, A, R 1 , R 2 , R 7 - R 10 , n and X are further defined in the specification).
摘要:
The present invention discloses single site catalyst systems having anionic scorpion-like three dimensional structure, that are suitable for oligomerising or polymerising ethylene and alpha-olefins.
摘要:
Ligands, compositions, and metal-ligand complexes that incorporate heterocycle-amine compounds are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers. The catalysts have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene to form isotactic polypropylene.
摘要:
A novel class of organometallic complexes can be used as an ingredient of a catalyst system. The catalyst system can be used in polymerizations of ethylenically unsaturated hydrocarbon monomers that include both olefins and polyenes.
摘要:
The present invention discloses single site catalyst systems having anionic scorpion-like three dimensional structure, that are suitable for oligomerising or polymerising ethylene and alpha-olefins.
摘要:
A novel class of organometallic complexes can be used as an ingredient of a catalyst system. The catalyst system can be used in polymerizations of ethylenically unsaturated hydrocarbon monomers that include both olefins and polyenes.