Patent US4215013A successfully refreshed from Google Patents.
US4215013A
Expired / Lapsed
US
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Process for the polymerization of 1-alkenes
Assignee: Stamicarbon BV
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Filing: 1978-10-31
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Granted: 1980-07-29
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Expires: 1998-10-31
Abstract
Abstract The invention relates to a catalyst system and process for the polymerization of 1-alkenes or the copolymerization of 1-alkenes with each other or with ethylene, wherein use is made of a catalyst system that contains a titanium halogenide component on an at least virtually anhydrous magnesium halogenide support and an organoaluminum component containing a complex of an organic aluminum compound with an ester of an oxygen-containing organic acid characterized in that the support used is a magnesium halogenide that is also at least virtually free of magnesium oxide and which has been prepared by heating a magnesium halogenide containing water and/or magnesium oxide in a gaseous flow of carbon halogenide vapor and/or a mixture of carbon monoxide and a halogen. The process according to the invention offers a high polymer yield per gram of Ti compound used and with very high contents of isotactic polymer.
Inventors
- 👤 Jacobus A. Loontjens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:20
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/02; C08F4/022; C01; C01F; C01F5/00; C01F5/26; C01F5/30; C01F5/32
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
105 words
An improved catalyst system for the polymerization and copolymerization of 1-alkenes which contains a titanium halogenide component supported on a magnesium halogenide material and an organoaluminum component containing a complex of an organic aluminum compound with an ester of a carboxylic organic acid, and wherein the magnesium halogenide has at most about 0.2% H 2 O by weight and at most about 0.1 mgeq magnesium oxide per g of magnesium halogenide, and which has been prepared by heating a magnesium halogenide containing water and/or magnesium oxide in a gaseous flow of a carbon halogenide vapor and/or of a mixture of carbon monoxide and a halogen.
Claim 2
Dependent Claim
105 words
An improved catalyst system for the polymerization and copolymerization of 1-alkenes which contains a titanium halogenide component supported on a magnesium halogenide material and an organoaluminum component containing a complex of an organic aluminum compound with an ester of a carboxylic organic acid, and wherein the magnesium halogenide has at most about 0.2% H 2 O by weight and at most about 0.1 mgeq magnesium oxide per g of magnesium halogenide, and which has been prepared by heating a magnesium halogenide containing water and/or magnesium oxide in a gaseous flow of a carbon halogenide vapor and/or of a mixture of carbon monoxide and a halogen.
Claim 3
Dependent Claim
36 words
The catalyst according to claim 1, wherein the amount of water in the magnesium halogenide is at most 0.1% by weight and the amount of magnesium oxide at most 0.01 mgeq per g of magnesium halogenide.
Claim 4
Dependent Claim
15 words
The catalyst according to claims 1 or 2, wherein the magnesium halogenide is magnesium chloride.
Claim 5
Dependent Claim
28 words
The catalyst according to claim 1, wherein the titanium halogenide component consists of a complex of a halogenated titanium compound with a Lewis base on magnesium chloride support.
Claim 6
Dependent Claim
26 words
The catalyst according to claim 4, wherein the Lewis base that forms a complex with the titanium compound is an ester of an organic carboxylic acid.
Claim 7
Dependent Claim
16 words
The catalyst according to claim 5, wherein an ester of an aromatic carboxylic acid is used.
Claim 8
Dependent Claim
26 words
The catalyst according to claim 1, wherein the organoaluminum component contains a complex of a trialkyl aluminum compound and an ester of an organic carboxylic acid.
Claim 9
Dependent Claim
34 words
The catalyst according to claim 1, wherein the organoaluminum component also contains a non-complexed organoaluminum compound in addition to the complex of an organic aluminum compound with an ester of an organic carboxylic acid.
Claim 10
Dependent Claim
23 words
The catalyst according to claims 1 or 8, wherein the organoaluminum component contains both a trialkyl aluminum compound and a dialkyl aluminum halogenide.
Claim 11
Dependent Claim
29 words
The catalyst according to claim 1, wherein the organoaluminum component contains both a trialkyl aluminum compound and a mixture of a dialkyl magnesium compound and a monoalkyl aluminum dihalogenide.
Claim 12
Dependent Claim
93 words
An improved titanium halogenide catalyst component for use in catalyst systems for the polymerization and co-polymerization of 1-alkenes which consists essentially of a titanium halogenide component supported on a magnesium halogenide material, wherein the magnesium halogenide has at most about 0.2% H 2 O by weight and at most about 0.1 mgeq magnesium oxide per g of magnesium halogenide, and which has been prepared by heating a magnesium halogenide containing water and/or magnesium oxide in a gaseous flow of a carbon halogenide vapor and/or of a mixture of carbon monoxide and a halogen.
Claim 13
Dependent Claim
93 words
An improved titanium halogenide catalyst component for use in catalyst systems for the polymerization and co-polymerization of 1-alkenes which consists essentially of a titanium halogenide component supported on a magnesium halogenide material, wherein the magnesium halogenide has at most about 0.2% H 2 O by weight and at most about 0.1 mgeq magnesium oxide per g of magnesium halogenide, and which has been prepared by heating a magnesium halogenide containing water and/or magnesium oxide in a gaseous flow of a carbon halogenide vapor and/or of a mixture of carbon monoxide and a halogen.
Claim 14
Dependent Claim
37 words
A catalyst component according to claim 11, wherein the amount of water in the magnesium halogenide is at most 0.1% by weight and the amount of magnesium oxide at most 0.01 mgeq per g of magnesium halogenide.
Claim 15
Dependent Claim
16 words
A catalyst component according to claims 11 or 12 wherein a magnesium halogenide is magnesium chloride.
Claim 16
Dependent Claim
29 words
A catalyst component according to claim 11 wherein the titanium halogenide component consists of a complex of a halogenated titanium compound with a Lewis base on magnesium chloride support.
References Cited (Backward Citations)
US1702301A
Cited
US3549717A
Cited
US3591656A
Cited
GB1387890A
Cited
US3953414A
Cited
US4107415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-29 | 1984-01-28 | 1984-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-29 | 1988-01-28 | 1988-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-29 | 1992-01-28 | 1992-07-29 | $7700.00 | Window Closed / Lapsed |