Patent JPS5546002A successfully refreshed from Google Patents.
US4240929A
Expired / Lapsed
US
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Polymerization of olefins
Assignee: Phillips Petroleum Co
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Filing: 1979-01-15
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Granted: 1980-12-23
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Expires: 1999-01-15
Abstract
Abstract A catalyst composition can be obtained by treating a magnesium halide-tetravalent, halogenated titanium compound mixture with a magnesium alkoxide. The catalyst composition can be combined with a metallic hydride or, preferably, an organometallic co-catalyst, e.g., an organoaluminum compound, to form a catalyst useful for the polymerization of alpha-olefins.
Inventors
- 👤 Richard E. Dietz
- 👤 Oscar D. Nowlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:14
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
21 words
A catalyst composition obtained by milling a magnesium alkoxide with a milled mixture of a magnesium chloride and a titanium tetrahalide.
Claim 2
Dependent Claim
21 words
A catalyst composition obtained by milling a magnesium alkoxide with a milled mixture of a magnesium chloride and a titanium tetrahalide.
Claim 3
Dependent Claim
20 words
A catalyst composition in accordance with claim 1 wherein the magnesium alkoxide is rotary ball milled with the milled mixture.
Claim 4
Dependent Claim
17 words
A catalyst composition in accordance with claim 1 wherein a powdered diluent is added to the composition.
Claim 5
Dependent Claim
23 words
A catalyst composition in accordance with claim 3 wherein said powdered diluent has a particle size of no greater than about 250 microns.
Claim 6
Dependent Claim
21 words
A catalyst composition in accordance with claim 3 wherein said powdered diluent is selected from the group consisting of polyarylene sulfide.
Claim 7
Dependent Claim
15 words
A catalyst composition in accordance with claim 1 wherein said titanium tetrahalide is titanium tetrachloride.
Claim 8
Dependent Claim
50 words
A catalyst composition in accordance with claim 1 wherein the molar ratio of the magnesium chloride to the titanium tetrahalide is in the range of about 2:1 to about 25:1 and the molar ratio of titanium tetrahlide to magnesium alkoxide is in the range of about 0.1:1 to about 10:1.
Claim 9
Dependent Claim
50 words
A catalyst composition in accordance with claim 7 wherein the molar ratio of the magnesium chloride to the titanium tetrahalide is in the range of about 3:1 to about 15:1 and the molar ratio of titanium tetrahalide to magnesium alkoxide is in the range of about 0.5:1 to about 5:1.
Claim 10
Independent Claim
30 words
A method for preparing a catalyst composition comprising preparing a milled mixture of a magnesium chloride and a titanium tetrahalide compound, and then milling the mixture with a magnesium alkoxide.
Claim 11
Independent Claim
30 words
A method for preparing a catalyst composition comprising preparing a milled mixture of a magnesium chloride and a titanium tetrahalide compound, and then milling the mixture with a magnesium alkoxide.
Claim 12
Dependent Claim
19 words
A method in accordance with claim 9 wherein said milled mixture is rotary ball milled with the magnesium alkoxide.
Claim 13
Dependent Claim
22 words
A method in accordance with claim 9 wherein the milling times are in the range of about 5 to about 200 hours.
Claim 14
Dependent Claim
15 words
A method in accordance with claim 9 wherein powdered diluent is added to the composition.
Claim 15
Dependent Claim
21 words
A method in accordance with claim 12 wherein said powdered diluent is added to the composition along with the magnesium alkoxide.
Claim 16
Dependent Claim
24 words
A method in accordance with claim 12 wherein the powdered diluent added to the composition is selected from the group consisting of poly(arylene sulfide).
Claim 17
Dependent Claim
63 words
A catalyst for the polymerization and copolymerization of olefins comprising two components wherein component A is obtained by milling a magnesium alkoxide with a milled mixture of a magnesium chloride and a titanium tetrahalide compound, and component B is a metallic hydride or organometallic compound wherein said metal is selected from an element of Groups IA, IIA, and IIIA of the Periodic Table.
Claim 18
Dependent Claim
63 words
A catalyst for the polymerization and copolymerization of olefins comprising two components wherein component A is obtained by milling a magnesium alkoxide with a milled mixture of a magnesium chloride and a titanium tetrahalide compound, and component B is a metallic hydride or organometallic compound wherein said metal is selected from an element of Groups IA, IIA, and IIIA of the Periodic Table.
Claim 19
Dependent Claim
18 words
A catalyst in accordance with claim 15 wherein the magnesium alkoxide is rotary milled with said milled mixture.
Claim 20
Dependent Claim
17 words
A catalyst composition in accordance with claim 15 wherein a powdered diluent is added to the catalyst.
Claim 21
Dependent Claim
22 words
A catalyst in accordance with claim 17 wherein said powdered diluent has a particle size of no greater than about 250 microns.
Claim 22
Dependent Claim
20 words
A catalyst in accordance with claim 17 wherein said powdered diluent is selected from the group consisting of poly(arylene sulfide).
Claim 23
Dependent Claim
14 words
A catalyst in accordance with claim 15 wherein said titanium tetrahalide is titanium tetrachloride.
Claim 24
Dependent Claim
14 words
A catalyst in accordance with claim 15 wherein component B is an organoaluminum compound.
Claim 25
Dependent Claim
30 words
A catalyst in accordance with claim 21 wherein the organoaluminum compound is selected from the group consisting of trimethylaluminum, triethylaluminum, tridodecylaluminum, tricyclohexylaluminum, triphenylaluminum, diethylaluminum chloride, diisobutylaluminum hydride and ethylaluminum dibromide.
Claim 26
Dependent Claim
51 words
A catalyst in accordance with claim 15 wherein the molar ratio of the magnesium chloride to the titanium tetrahalide compound is in the range of about 2:1 to about 25:1 and the molar ratio of titanium tetrahalide compound to magnesium alkoxide is in the range of about 0.1:1 to about 10:1.
Claim 27
Dependent Claim
51 words
A catalyst in accordance with claim 23 wherein the molar ratio of the magnesium chloride to the titanium tetrahalide compound is in the range of about 3:1 to about 15:1 and the molar ratio of titanium tetrahalide compound to magnesium alkoxide is in the range of about 0.5:1 to about 5:1.
Claim 28
Independent Claim
73 words
A method for the preparation of a catalyst which comprises forming a component A by preparing an intimate mixture by milling a magnesium chloride and a titanium tetrahalide compound and then milling said mixture with a magnesium alkoxide, and then combining component A with a component B which is a metallic hydride or organometallic compound wherein said metal is selected from an element of Groups IA, IIA, and IIIA of the Periodic Table.
Claim 29
Independent Claim
73 words
A method for the preparation of a catalyst which comprises forming a component A by preparing an intimate mixture by milling a magnesium chloride and a titanium tetrahalide compound and then milling said mixture with a magnesium alkoxide, and then combining component A with a component B which is a metallic hydride or organometallic compound wherein said metal is selected from an element of Groups IA, IIA, and IIIA of the Periodic Table.
Claim 30
Dependent Claim
24 words
A method in accordance with claim 25 wherein the magnesium chloride and titanium tetrahalide compound mixture is rotary ball milled with the magnesium alkoxide.
Claim 31
Dependent Claim
22 words
A method in accordance with claim 25 wherein the milling times are in the range of about 5 to about 200 hours.
Claim 32
Dependent Claim
15 words
A method in accordance with claim 25 wherein powdered diluent is added to the composition.
Claim 33
Dependent Claim
21 words
A method in accordance with claim 28 wherein said powdered diluent is added to the composition along with the magnesium alkoxide.
Claim 34
Dependent Claim
24 words
A method in accordance with claim 28 wherein the powdered diluent added to the composition is selected from the group consisting of poly(arylene sulfide).
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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) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |