US6765074B2
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US
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Olefin polymerization process
Assignee: Equistar Chemicals LP
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Filing: 2002-09-27
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Granted: 2004-07-20
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Expires: 2022-09-27
Abstract
Abstract An olefin polymerization process is disclosed. The process comprises polymerizing olefins in the presence of a supported indenoindolyl catalyst system and an organoboron or organoaluminum-treated solid. The supported indenoindolyl catalyst system comprises a support, an organometallic complex comprising a Group 3 to 10 transition or lanthanide metal, M, and at least one indenoindolyl ligand that is π-bonded to M, and an activator. Performing the process in the presence of the organoboron or organoaluminum-treated solid surprisingly leads to an increased activity compared to polymerization processes performed without the treated solid.
Inventors
- 👤 William J. Sartain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:44
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/64; C08F4/642; C08F210/00; C08F210/16; C08F110/00; C08F110/02; C08F4/659; C08F4/65908; C08F4/65912
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
63 words
A process which comprises polymerizing one or more olefins in the presence of a supported indenoindolyl catalyst system comprising a support, an activator, and an organometallic complex comprising a Group 3 to 10 transition or lanthanide metal, M, and at least one indenoindolyl ligand that is π-bonded to M, wherein the process is performed in the presence of an organoboron or organoaluminum-treated solid.
Claim 2
Dependent Claim
63 words
A process which comprises polymerizing one or more olefins in the presence of a supported indenoindolyl catalyst system comprising a support, an activator, and an organometallic complex comprising a Group 3 to 10 transition or lanthanide metal, M, and at least one indenoindolyl ligand that is π-bonded to M, wherein the process is performed in the presence of an organoboron or organoaluminum-treated solid.
Claim 3
Dependent Claim
27 words
The process of claim 1 wherein the support is selected from the group consisting of silica, alumina, silica-alumina, titania, zirconia, magnesia, magnesium chloride, polystyrene, and mixtures thereof.
Claim 4
Dependent Claim
10 words
The process of claim 2 wherein the support is silica.
Claim 5
Dependent Claim
13 words
The process of claim 1 wherein M is a Group 4-6 transition metal.
Claim 6
Dependent Claim
13 words
The process of claim 1 wherein M is a Group 4 transition metal.
Claim 7
Dependent Claim
22 words
The process of claim 1 wherein the activator is selected from the group consisting of alumoxanes, neutral boron compounds, and ionic borates.
Claim 8
Dependent Claim
38 words
The process of claim 1 wherein the organoboron or organoaluminum-treated solid comprises an inorganic solid or an organic polymer solid selected from the group consisting of silica, alumina, silica-alumina, titania, zirconia, magnesia, magnesium chloride, polystyrene, and mixtures thereof.
Claim 9
Dependent Claim
11 words
The process of claim 7 wherein the inorganic solid is silica.
Claim 10
Dependent Claim
48 words
The process of claim 1 wherein the organoboron or organoaluminum-treated solid is prepared by treating an inorganic solid or an organic polymer solid with an organoboron or organoaluminum compound selected from the group consisting of alumoxanes, alkyl aluminums, alkyl aluminum halides, and alkyl, aryl, and alkoxy boron compounds.
Claim 11
Dependent Claim
17 words
The process of claim 1 wherein the olefin comprises ethylene and a C 3 -C 10 α-olefin.
Claim 12
Dependent Claim
58 words
A process which comprises polymerizing one or more olefins in the presence of a supported indenoindolyl catalyst system comprising a support, an activator, and an organometallic complex comprising a Group 4 transition metal, M, and at least one indenoindolyl ligand that is π-bonded to M, wherein the process is performed in the presence of an organoaluminum-treated inorganic solid.
Claim 13
Dependent Claim
58 words
A process which comprises polymerizing one or more olefins in the presence of a supported indenoindolyl catalyst system comprising a support, an activator, and an organometallic complex comprising a Group 4 transition metal, M, and at least one indenoindolyl ligand that is π-bonded to M, wherein the process is performed in the presence of an organoaluminum-treated inorganic solid.
Claim 14
Dependent Claim
10 words
The process of claim 11 wherein the support is silica.
Claim 15
Dependent Claim
22 words
The process of claim 11 wherein the activator is selected from the group consisting of alumoxanes, neutral boron compounds, and ionic borates.
Claim 16
Dependent Claim
23 words
The process of claim 11 wherein the inorganic solid is selected from the group consisting of silica, alumina, silica-alumina, magnesia, titania, and zirconia.
Claim 17
Dependent Claim
22 words
The process of claim 11 wherein the organoaluminum-treated inorganic solid is prepared by treating an inorganic solid with an alkyl aluminum compound.
Claim 18
Dependent Claim
17 words
The process of claim 11 wherein the olefin comprises ethylene and a C 3 -C 10 α-olefin.
Claim 19
Dependent Claim
52 words
A process which comprises polymerizing one or more olefins in the presence of a supported catalyst system comprising silica, an activator, and an organometallic complex comprising zirconium and at least one indenoindolyl ligand that is π-bonded to zirconium, wherein the process is performed in the presence of an organoboron or organoaluminum-treated silica.
Claim 20
Dependent Claim
52 words
A process which comprises polymerizing one or more olefins in the presence of a supported catalyst system comprising silica, an activator, and an organometallic complex comprising zirconium and at least one indenoindolyl ligand that is π-bonded to zirconium, wherein the process is performed in the presence of an organoboron or organoaluminum-treated silica.
Claim 21
Dependent Claim
22 words
The process of claim 17 wherein the activator is selected from the group consisting of alumoxanes, neutral boron compounds, and ionic borates.
Claim 22
Dependent Claim
19 words
The process of claim 17 wherein the organoaluminum-treated silica is prepared by treating silica with an alkyl aluminum compound.
Claim 23
Dependent Claim
24 words
The process of claim 19 wherein the alkyl aluminum compound is selected from the group consisting of trimethyl aluminum, triethyl aluminum, and triisobutyl aluminum.
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