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US 5,703,180 AGranted
Catalyst for olefin polymerization, process for olefin polymerization using the same, ethylene/.alpha.-olefin copolymer, graft modified ethylene/.alpha.-olefin copolymer, and ethylene copolymer composition
AssigneeMitsui Petrochemical Industries, Ltd.
InventorsToshiyuki Tsutsui, Ken Yoshitsugu, Mamoru Takahashi, Akira Todo
Life of this patent
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Abstract
An ethylene/.alpha.-olefin copolymer obtained by copolymerizing ethylene with an .alpha.-olefin of 3 to 20 carbon atoms in the presence of a catalyst for olefin polymerization comprising an organoaluminum oxy-compound (a) and at least two kinds of transition metal compounds (b). This ethylene/.alpha.-olefin copolymer has high melt tension and high flowability.
Claims25
A catalyst for olefin polymerization, comprising:
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50.
4 more elements
A process for olefin polymerization, comprising polymerizing an olefin in the presence of a catalyst for olefin polymerization comprising:
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50.
4 more elements
A catalyst for olefin polymerization, comprising:
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50, and
- (c) an organoaluminum compound.
5 more elements
A process for olefin polymerization, comprising polymerizing an olefin in the presence of a catalyst for olefin polymerization comprising:
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50, and
- (c) an organoaluminum compound.
5 more elements
A catalyst for olefin polymerization, comprising:
- a carrier,
- an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50,
- said aluminoxane compound (a), said transition metal compound (b-I) and said transition metal compound (b-II) being supported on the carrier.
6 more elements
A process for olefin polymerization, comprising polymerizing an olefin in the presence of a catalyst for olefin polymerization comprising:
- a carrier,
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group;
- a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50,
- said aluminoxane compound (a), said transition metal compound (b-I) and said transition metal compound (b-II) being supported on the carrier.
7 more elements
A catalyst for olefin polymerization, comprising:
- a solid catalyst component comprising:
- a carrier,
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50,
- said aluminoxane compound (a), said transition metal compound (b-I) and said transition metal compound (b-II) being supported on the carrier;
- and
- (d) an organoaluminum compound.
9 more elements
A process for olefin polymerization, comprising polymerizing an olefin in the presence of:
- a solid catalyst component comprising:
- a carrier,
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50,
- said aluminoxane compound (a), said transition metal compound (b-I) and said transition metal compound (b-II) being supported on the carrier;
- and
- (d) an organoaluminum compound.
9 more elements
A catalyst for olefin polymerization, comprising:
- a carrier,
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50, and
- (c) an organoaluminum compound,
- said aluminoxane compound (a), said transition metal compound (b-I), said transition metal compound (b-II) and said organoaluminum compound (c) being supported on the carrier.
7 more elements
A process for olefin polymerization, comprising polymerizing an olefin in the presence of a catalyst for olefin polymerization comprising:
- a carrier,
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50, and
- (c) an organoaluminum compound,
- said aluminoxane compound (a), said transition metal compound (b-I), said transition metal compound (b-II) and said organoaluminum compound (c) being supported on the carrier.
7 more elements
A catalyst for olefin polymerization, comprising:
- a solid catalyst component comprising:
- a carrier
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50, and
- (c) an organoaluminum compound,
- said aluminoxane compound (a), said transition metal compound (b-I), said transition metal compound (b-II) and said organoaluminum compound (c) being supported on the carrier;
- and
- (d) an organoaluminum compound.
10 more elements
A process for olefin polymerization, comprising polymerizing an olefin in the presence of:
- a solid catalyst component comprising:
- a carrier
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein At least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50, and
- (c) an organoaluminum compound,
- said aluminoxane compound (a), said transition metal compound (b-I), said transition metal compound (b-II) and said organoaluminum compound (c) being supported on the carrier;
- and
- (d) an organoaluminum compound.
10 more elements
A catalyst for olefin polymerization obtained by prepolymerizing an olefin on a solid catalyst component, said solid catalyst component comprising:
- a carrier,
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50, and
- said aluminoxane compound (a), said transition metal compound (b-I) and said transition metal compound (b-II) being supported on the carrier.
6 more elements
A process for olefin polymerization, comprising polymerizing an olefin in the presence of a catalyst for olefin polymerization obtained by prepolymerizing an olefin on a solid catalyst component, said solid catalyst component comprising:
- a carrier,
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50,
- said aluminoxane compound (a), said transition metal compound (b-I) and said transition metal compound (b-II) being supported on the carrier.
6 more elements
A catalyst for olefin polymerization, comprising:
- a prepolymerized catalyst component obtained by prepolymerizing an olefin on a solid catalyst component, said solid catalyst component comprising:
- a carrier,
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50,
- said aluminoxane compound (a), said transition metal compound (b-I) and said transition metal compound (b-II) being supported on the carrier;
- and
- (d) an organoaluminum compound.
9 more elements
A process for olefin polymerization, comprising polymerizing an olefin in the presence of:
- a prepolymerized catalyst component obtained by prepolymerizing an olefin on a solid catalyst component, said solid catalyst component comprising:
- a carrier,
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50,
- said aluminoxane compound (a), said transition metal compound (b-I) and said transition metal compound (b-II) being supported on the carrier;
- and
- (d) an organoaluminum compound.
9 more elements
A catalyst for olefin polymerization obtained by prepolymerizing an olefin on a solid catalyst component, said solid catalyst component comprising:
- a carrier,
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50, and
- (c) an organoaluminum compound,
- said aluminoxane compound (a), said transition metal compound (b-I), said transition metal compound (b-II) and said organoaluminum compound (c) being supported on the carrier.
7 more elements
A process for olefin polymerization, comprising polymerizing an olefin in the presence of a catalyst for olefin polymerization obtained by prepolymerizing an olefin on a solid catalyst component, said solid catalyst component comprising:
- a carrier,
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50, and
- (c) an organoaluminum compound,
- said aluminoxane compound (a), said transition metal compound (b-I), said transition metal compound (b-II) and said organoaluminum compound (c) being supported on the carrier.
7 more elements
A catalyst for olefin polymerization, comprising:
- a prepolymerized catalyst component obtained by prepolymerizing an olefin on a solid catalyst component, said solid catalyst component comprising:
- a carrier,
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50, and
- (c) an organoaluminum compound,
- said aluminoxane compound (a), said transitional metal compound (b-I), said transition metal compound (b-II) and said organoaluminum compound (c) being supported on the carrier;
- and
- (d) an organoaluminum compound.
10 more elements
A process for olefin polymerization, comprising polymerizing an olefin in the presence of:
- a prepolymerized catalyst component obtained by prepolymerizing an olefin on a solid catalyst component, said solid catalyst component comprising:
- a carrier,
- (a) an aluminoxane compound,
- (b-I) at least one transition metal compound represented by the following formula (I):
- ML.sup.1.sub.x (I)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.1 is a ligand coordinating to the transition metal atom M, at least two of L.sup.1 are groups selected from the group consisting of a substituted cyclopentadienyl group having two or more substituents, wherein at least one substituent is selected from a hydrocarbon group having 3 to 10 carbon atoms, and the other substituents are selected from the group consisting of methyl and ethyl, L.sup.1 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, and
- (b-II) at least one transition metal compound represented by the following formula (II):
- ML.sup.2.sub.x (II)
- wherein M is a transition metal atom selected from Group IVB of the periodic table, L.sup.2 is a ligand coordinating to the transition metal atom, at least two of L.sup.2 are substituted cyclopentadienyl groups having 2 or 3 substituent groups, said substituent groups being selected from the group consisting of a methyl group and an ethyl group, L.sup.2 other than the cyclopentadienyl group is a hydrocarbon group of 1 to 12 carbon atoms, an alkoxy group, an aryloxy group, a trialkylsilyl group, a halogen atom or a hydrogen atom, and X is the valence of the transition metal atom M, wherein the molar ratio (b-I)/(b-II) is in the range of 99/1 to 50/50, and
- (c) an organoaluminum compound,
- said aluminoxane compound (a), said transitional metal compound (b-I), said transition metal compound (b-II) and said organoaluminum compound (c) being supported on the carrier;
- and
- (d) an organoaluminum compound.
10 more elements
Dependencies are inferred from the claim text.