US5529965A
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Polymerization catalyst systems, their production and use
Assignee: ExxonMobil Chemical Patents Inc
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Filing: 1994-10-28
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Granted: 1996-06-25
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Expires: 2014-10-28
Abstract
Abstract This invention is generally directed toward a supported catalyst system useful for polymerizing olefins. The method for supporting the catalyst of the invention provides for a supported mixed metallocene/non-metallocene catalyst useful in a process for polymerizing olefins.
Inventors
- 👤 Main Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:53
CPC Classifications
C; C08; C08F; C08F10/00; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/64; C08F4/646; C08F4/619; C08F4/61904; C08F4/61912; C08F4/61916
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
78 words
A method of producing a supported catalyst system, said method comprising the sequential steps of: a) contacting a water containing support material with an organometallic compound; adding at least one metallocene catalyst component; c) adding at least one magnesium containing compound; and d) adding at least one non-metallocene catalyst component that is a coordination compound of a metal selected from the group consisting of Group 3, 4, 5, 6, 7, and 9 metals said compound excluding cyclopentadienyl derivatives.
Claim 2
Independent Claim
78 words
A method of producing a supported catalyst system, said method comprising the sequential steps of: a) contacting a water containing support material with an organometallic compound; adding at least one metallocene catalyst component; c) adding at least one magnesium containing compound; and d) adding at least one non-metallocene catalyst component that is a coordination compound of a metal selected from the group consisting of Group 3, 4, 5, 6, 7, and 9 metals said compound excluding cyclopentadienyl derivatives.
Claim 3
Dependent Claim
22 words
The method of claim 1 wherein the support material is selected from the group consisting of inorganic oxides, inorganic chlorides and polyolefins.
Claim 4
Dependent Claim
24 words
The method of claim 1 wherein the support material is selected from at least one of the group consisting of silica, alumina and magnesia.
Claim 5
Dependent Claim
45 words
The method of claim 1 wherein the organometallic compound is an organometallic compound selected from the group consisting of organometallic alkyls, alkoxides, and halides and wherein the organometallic compound contains a metal selected from the group consisting of Group 1, 2, 3, and 4 metals.
Claim 6
Dependent Claim
33 words
The method of claim 4 wherein the organometallic compound is selected from the group consisting of aluminum alkyls, magnesium alkyls, magnesium alkyl halides, lithium alkyls, silicon alkyls, silicon alkoxides and silicon alkyl halides.
Claim 7
Dependent Claim
21 words
The method of claim 5 wherein the organometallic compound is selected from the group consisting of trimethylaluminum, trisbutylaluminum, triethylaluminum and tri-n-hexyl-aluminum.
Claim 8
Dependent Claim
18 words
The method of claim 1 wherein the support material is contacted with the organometallic compound to form alumoxane.
Claim 9
Dependent Claim
63 words
The method of claim 1 wherein said magnesium containing compound has the general formula: X.sub.n MgR.sub.2-n wherein n is a number satisfying the condition of 0≦n<2; R is hydrogen, an alkyl group of 1-20 carbon atoms, an aryl group or a cycloalkyl group; when n is 0, two of R may be the same or different from each other; and X is halogen.
Claim 10
Dependent Claim
17 words
The method of claim 1 wherein the method further comprises a step of introducing a halogenating agent.
Claim 11
Dependent Claim
37 words
The method of claim 1 wherein the water content of the support material is in the range of from about 3 weight percent to about 27 weight percent based on the total weight of the support material.
Claim 12
Dependent Claim
31 words
The method of claim 1 wherein the mole ratio the organometallic compound to the water content of the support material is in the range of from about 0.7 to about 1.5.
Claim 13
Dependent Claim
61 words
The method of claim 1 wherein the method further comprises a step c) i) of adding a halogenating agent of the general formula: MR.sub.n X.sub.4-n where M is a Group 14 element, n is an integer from 0 to 3, R is hydrogen or a linear or branched radical having from 1 to 20 carbon atoms and X is a halogen.
Claim 14
Dependent Claim
16 words
The method of claim 1 wherein the catalyst system is dried to a free flowing powder.
Claim 15
Dependent Claim
17 words
The method of claim 9 wherein the method further comprises a step of introducing a chlorinating agent.
Claim 16
Dependent Claim
27 words
The method of claim 14 wherein the chlorinating agent is selected from the group consisting of chloroform, methylene chloride, chloromethane, tetrachlorosilane, trichlorosilane, boron chloride and combinations thereof.
Claim 17
Dependent Claim
25 words
The method of claim 1 wherein the mole ratio of the organometallic compound to the water content of the support material is greater than 0.8.
Claim 18
Dependent Claim
32 words
The method of claim 1 wherein the method further comprises a step of introducing another organometallic compound which can be the same or different as the organometallic compound formed in step a).
Claim 19
Independent Claim
75 words
A method of producing a supported catalyst system, said method comprising the sequential steps of: a) contacting a support material with an organometallic compound; b) adding at least one metallocene catalyst component; c) adding a magnesium containing compound; and d) adding at least one non-metallocene catalyst component that is a coordination compound of a metal selected from the group consisting of Group 3, 4, 5, 6, 7, and 9 metals, said compound excluding cyclopentadienyl derivatives.
Claim 20
Independent Claim
75 words
A method of producing a supported catalyst system, said method comprising the sequential steps of: a) contacting a support material with an organometallic compound; b) adding at least one metallocene catalyst component; c) adding a magnesium containing compound; and d) adding at least one non-metallocene catalyst component that is a coordination compound of a metal selected from the group consisting of Group 3, 4, 5, 6, 7, and 9 metals, said compound excluding cyclopentadienyl derivatives.
Claim 21
Dependent Claim
14 words
The method of claim 18 wherein the organometallic compound is an oxygen-containing organometallic compound.
Claim 22
Dependent Claim
14 words
The method of claim 18 wherein the method further comprises introducing a halogenating agent.
Claim 23
Dependent Claim
25 words
The method of claim 20 wherein the mole ratio of the halogenating agent to the magnesium containing compound is from about 1:1 to about 100:1.
Claim 24
Dependent Claim
10 words
A catalyst system produced by the method of claim 18.
Claim 25
Independent Claim
86 words
A method for preparing a supported activator, the method comprising contacting a water containing support material with a solution of an organometallic compound in a liquid and at least one halogenating agent, said solution further comprising one or more of the group consisting of a metallocene catalyst component, a non-metallocene catalyst component that is a coordination compound of a metal selected from the group consisting of Group 3, 4, 5, 6, 7, and 9 metals, said compound excluding cyclopentadienyl derivatives, and a magnesium containing compound component.
Claim 26
Independent Claim
86 words
A method for preparing a supported activator, the method comprising contacting a water containing support material with a solution of an organometallic compound in a liquid and at least one halogenating agent, said solution further comprising one or more of the group consisting of a metallocene catalyst component, a non-metallocene catalyst component that is a coordination compound of a metal selected from the group consisting of Group 3, 4, 5, 6, 7, and 9 metals, said compound excluding cyclopentadienyl derivatives, and a magnesium containing compound component.
Claim 27
Dependent Claim
42 words
The method of claim 23 wherein the solution is added to the water-containing support material such that the total volume of the solution is less than four times to about one times or less the total pore volume of the support material.
Claim 28
Dependent Claim
10 words
A catalyst system produced by the method of claim 1.
Claim 29
Dependent Claim
31 words
A process of polymerizing olefins alone or in combination with one or more other olefins, said process comprising polymerizing the olefins in the presence of the catalyst system of claim 1.
Claim 30
Dependent Claim
31 words
A process of polymerizing olefins alone or in combination with one or more other olefins, said process comprising polymerizing the olefins in the presence of the catalyst system of claim 22.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-06-25 | 1999-12-25 | 2000-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-06-25 | 2003-12-25 | 2004-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-06-25 | 2007-12-25 | 2008-06-25 | $7700.00 | Window Closed / Lapsed |