US6414162B1
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Bimetallic catalysts for olefin polymerization
Assignee: Equistar Chemicals LP
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Filing: 2001-04-05
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Granted: 2002-07-02
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Expires: 2021-04-05
Abstract
Abstract Catalyst systems useful for olefin polymerization are disclosed. The catalyst systems include an activator and an organometallic complex. The complex, which incorporates at least one Group 3-10 transition or lanthanide metal, is uniquely prepared from an indenoindolyl dianion or its synthetic equivalent. A diverse array of monomeric, dimeric, polymeric, or zwitterionic complexes are available from the dianion or its equivalent.
Inventors
- 👤 Sandor Nagy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:10
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/16; B01J31/1691; B01J31/18; B01J31/22; B01J31/2282; B01J31/2295; C; C07; C07F; C07F17/00; C08; C08F; C08F10/00; B01J2531/00; B01J2531/10; B01J2531/20; B01J2531/40; B01J2531/48; C08F210/00; C08F210/16; C08F2410/00; C08F2410/03; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/64; C08F4/659; C08F4/65912; C08F4/6592; C08F4/65922
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
31 words
An organometallic complex which comprises: (a) at least one Group 3-10 transition or lanthanide metal; and (b) at least one dianionic indenoindolyl ligand that is pi- or sigma-bonded to the metal.
Claim 2
Dependent Claim
31 words
An organometallic complex which comprises: (a) at least one Group 3-10 transition or lanthanide metal; and (b) at least one dianionic indenoindolyl ligand that is pi- or sigma-bonded to the metal.
Claim 3
Dependent Claim
7 words
A bimetallic complex of claim 1 .
Claim 4
Dependent Claim
29 words
The complex of claim 1 wherein the dianionic indenoindolyl ligand has a structure selected from the group consisting of: wherein M is a Group 1 or Group 2 metal.
Claim 5
Dependent Claim
16 words
The complex of claim 1 wherein the dianionic indenoindolyl ligand is generated from a synthetic equivalent.
Claim 6
Dependent Claim
28 words
The complex of claim 4 wherein the synthetic equivalent has one or two organotin, organosilicon, or organogermanium groups attached to nitrogen and/or the cyclopentadienyl ring of the ligand.
Claim 7
Dependent Claim
42 words
The complex of claim 5 wherein the synthetic equivalent has a structure selected from the group consisting of: wherein M is an alkali metal, and each of R and R′ is independently selected from the group consisting of organotin, organosilicon, and organogermanium.
Claim 8
Dependent Claim
35 words
The complex of claim 1 having the structure: in which each Z is a Group 4 transition metal, and wherein each L independently represents a pi-donor ligand and each X independently represents a sigma-donor ligand.
Claim 9
Dependent Claim
38 words
The complex of claim 1 having a structure selected from the group consisting of: wherein each Z is a Group 4 transition metal, each L independently represents a pi-donor ligand, and each X independently represents a sigma-donor ligand.
Claim 10
Dependent Claim
40 words
A polymeric complex of claim 1 having the structure: wherein Z is a Group 4 transition metal, L is a pi-donor ligand, each X independently represents a sigma-donor ligand, and n has a value from about 2 to about 100.
Claim 11
Dependent Claim
47 words
An organometallic complex which comprises: (a) at least one Group 3-10 transition or lanthanide metal; (b) at least one Group 13 element; and (c) at least one dianionic indenoindolyl ligand that is pi-or sigma-bonded to the Group 3-10 metal and is sigma-bonded to the Group 13 element.
Claim 12
Dependent Claim
47 words
An organometallic complex which comprises: (a) at least one Group 3-10 transition or lanthanide metal; (b) at least one Group 13 element; and (c) at least one dianionic indenoindolyl ligand that is pi-or sigma-bonded to the Group 3-10 metal and is sigma-bonded to the Group 13 element.
Claim 13
Dependent Claim
46 words
The complex of claim 10 having a structure selected from the group consisting of: wherein M is an alkali metal, Z is a Group 4 transition metal, A is a Group 13 element, L is a pi-donor ligand, and each X independently represents a sigma-donor ligand.
Claim 14
Dependent Claim
41 words
The complex of claim 10 having a structure selected from the group consisting of: wherein M is an alkali metal, Z is a Group 4 transition metal, A is a Group 13 element, and each X independently represents a sigma-donor ligand.
Claim 15
Dependent Claim
41 words
The complex of claim 10 having a structure selected from the group consisting of: wherein M is an alkali metal, Z is a Group 4 transition metal, A is a Group 13 element, and each X independently represents a sigma-donor ligand.
Claim 16
Dependent Claim
52 words
A polymeric complex of claim 10 having a structure selected from the group consisting of: wherein M is an alkali metal, Z is a Group 4 transition metal, A is a Group 13 element, each X independently represents a sigma-donor ligand, and n has a value from about 2 to about 100.
Claim 17
Dependent Claim
14 words
A catalyst system which comprises an activator and the complex of claim 1 .
Claim 18
Dependent Claim
13 words
The catalyst system of claim 15 wherein the activator is an alkyl alumoxane.
Claim 19
Dependent Claim
14 words
A catalyst system which comprises an activator and the complex of claim 10 .
Claim 20
Dependent Claim
13 words
The catalyst system of claim 17 wherein the activator is an alkyl alumoxane.
Claim 21
Dependent Claim
18 words
A method which comprises polymerizing an olefin in the presence of the catalyst system of claim 15 .
Claim 22
Dependent Claim
18 words
A method which comprises polymerizing an olefin in the presence of the catalyst system of claim 17 .
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