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US5091352A
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Olefin polymerization catalyst component, olefin polymerization catalyst and process for the polymerization of olefins
Assignee: Mitsui Chemicals Inc
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Filing: 1989-09-14
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Granted: 1992-02-25
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Expires: 2009-09-14
Abstract
Abstract In accordance with the present invention, there are provided olefin polymerization catalyst components comprising an organoaluminum oxy-compound having less than 10% in terms of Al atom of Al component dissolving in benzene kept at 60 DEG C., and olefin polymerization catalyst containing said olefin polymerization catalyst components. The olefin polymerization catalysts have excellent polymerization activities, and are capable of giving olefin (co)polymers having a narrow molecular weight distribution and a narrow composition distribution.
Inventors
- 👤 Mamoru Kioka
- 👤 Toshiyuki Tsutsui
- 👤 Akinori Toyota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:03
CPC Classifications
C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S526/00; Y10S526/943
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
87 words
An olefin polymerization catalyst component comprising an organoaluminum oxy-compound having less than 10% in terms of Al atom of Al component dissolving in benzene kept at 60° C., a ratio (D 1220 /D 1220 ) of an absorbance (D 1260 ) at 1260 cm -1 to an absorbance (D 1220 ) at 1220 cm -1 , both obtained by infrared spectrophotometry, of less than 0.09, and the organoaluminum oxy-compound being prepared by bringing a solution of aluminoxane into contact with water or an active hydrogen containing compound.
Claim 2
Dependent Claim
87 words
An olefin polymerization catalyst component comprising an organoaluminum oxy-compound having less than 10% in terms of Al atom of Al component dissolving in benzene kept at 60° C., a ratio (D 1220 /D 1220 ) of an absorbance (D 1260 ) at 1260 cm -1 to an absorbance (D 1220 ) at 1220 cm -1 , both obtained by infrared spectrophotometry, of less than 0.09, and the organoaluminum oxy-compound being prepared by bringing a solution of aluminoxane into contact with water or an active hydrogen containing compound.
Claim 3
Dependent Claim
110 words
An olefin polymerization catalyst component comprising an organoaluminum oxy-compound having less than 10% in terms of Al atom of Al component dissolving in benzene kept at 60° C., a ratio (D 1260 /D 1220 ) of an absorbance (D 1260 ) at 1260 cm -1 to an absorbance (D 1220 ) at 1220 cm -1 , both obtained by infrared spectrophotometry, of less than 0.09, and the organoaluminum oxy-compound being prepared by bringing a solution of organoaluminum compound into contact with water, wherein the water is used in such an amount that the organoaluminum atoms dissolved in the reaction system become less than 20% based on the total organoaluminum atoms.
Claim 4
Dependent Claim
110 words
An olefin polymerization catalyst component comprising an organoaluminum oxy-compound having less than 10% in terms of Al atom of Al component dissolving in benzene kept at 60° C., a ratio (D 1260 /D 1220 ) of an absorbance (D 1260 ) at 1260 cm -1 to an absorbance (D 1220 ) at 1220 cm -1 , both obtained by infrared spectrophotometry, of less than 0.09, and the organoaluminum oxy-compound being prepared by bringing a solution of organoaluminum compound into contact with water, wherein the water is used in such an amount that the organoaluminum atoms dissolved in the reaction system become less than 20% based on the total organoaluminum atoms.
Claim 5
Dependent Claim
33 words
The olefin polymerization catalyst component as claimed in claim 1 or claim 2 wherein the Al component dissolving in benzene kept at 60° C. is less than 2% in terms of Al atom.
Claim 6
Dependent Claim
47 words
An olefin polymerization catalyst comprising an organoaluminum oxy-compound having less than 10% in terms of Al atom of Al component dissolving in benzene kept at 60° C., as claimed in claim 1 or claim 2 and a transition metal compound containing a ligand having a cycloalkadienyl skeleton.
Claim 7
Dependent Claim
37 words
The olefin polymerization catalyst as claimed in claim 4 wherein the transition metal compound is a transition metal compound containing at least two ligands having a cycloalkadienyl skeleton, said ligands being bonded together through lower alkylene groups.
Claim 8
Dependent Claim
50 words
An olefin polymerization catalyst comprising an organoaluminum oxy-compound having less than 10% in terms of Al atom of Al component dissolving in benzene kept at 60° C., as claimed in claim 1 or claim 1, a transition metal compound containing a ligand having a cycloalkadienyl skeleton, and an organoaluminum compound.
Claim 9
Dependent Claim
37 words
The olefin polymerization catalyst as claimed in claim 6 wherein the transition metal compound is a transition metal compound containing at least two ligands having a cycloalkadienyl skeleton, said ligands being bonded together through lower alkylene groups.
Claim 10
Dependent Claim
95 words
The olefin polymerization catalyst as claimed in claim 6 wherein the organoaluminum compound is an organoaluminum compound represented by the formula R 6 m AlX 3-m wherein R 6 is hydrocarbon of 1-12 carbon atoms, X is halogen and m is 1-3, or by the formula R 6 n AlY 3-n wherein R 6 is as defined above, Y is hydrogen, --OR 7 , --OSiR 8 3 , --OAiR 9 2 , ##STR30## --NR 12 2 or --SiR 13 3 , n is 1-2, and R 7 -R 13 are each hydrogen, halogen or hydrocarbon.
Claim 11
Dependent Claim
64 words
An olefin polymerization catalyst comprising an organoaluminum oxy-compound having less than 10% in terms of Al atom of Al component dissolving in benzene kept at 60° C., as claimed in claim 1 or claim 2, a transition metal compound containing a ligand having a cycloalkadienyl skeleton, and an aluminoxane having at least one hydrocarbon group other than n-alkyl group bonded to the aluminum atom.
Claim 12
Dependent Claim
37 words
The olefin polymerization catalyst as claimed in claim 9 wherein the transition metal compound is a transition metal compound containing at least two ligands having a cycloalkadienyl skeleton, said ligands being bonded together through lower alkylene groups.
Claim 13
Dependent Claim
24 words
The olefin polymerization catalyst as claimed in claim 9 wherein the hydrocarbon group other than n-alkyl group is branched chain alkyl, cycloalkyl or aryl.
Claim 14
Dependent Claim
67 words
An olefin polymerization catalyst comprising an organoaluminum oxy-compound having less than 10% in terms of Al atom of Al component dissolving in benzene kept at 60° C., as claimed in claim 1 or claim 2, a transition metal compound containing a ligand having a cycloalkadienyl skeleton, an organoaluminum compound, and an aluminoxane having at least one hydrocarbon group other than n-alkyl group bonded to the aluminum atom.
Claim 15
Dependent Claim
37 words
The olefin polymerization catalyst as claimed in claim 12 wherein the transition metal compound is a transition metal compound containing at least two ligands having a cycloalkadienyl skeleton, said ligands being bonded together through lower alkylene groups.
Claim 16
Dependent Claim
95 words
The olefin polymerization catalyst as claimed in claim 12 wherein the organoaluminum compound is an organoaluminum compound represented by the formula R 6 m AlX 3-m wherein R 6 is hydrocarbon of 1-12 carbon atoms, X is halogen and m is 1-3, or by the formula R 6 n AlY 3-n wherein R 6 is as defined above, Y is hydrogen, --OR 7 , --OSiR 8 3 , --OAlR 9 2 , ##STR31## --NR 12 2 or --SiR 13 3 , n is 1-2, and R 7 -R 13 are each hydrogen, halogen or hydrocarbon.
Claim 17
Dependent Claim
24 words
The olefin polymerization catalyst as claimed in claim 12 wherein the hydrocarbon group other than n-alkyl group is branched chain alkyl, cycloalkyl or aryl.
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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) | 1995-02-24 | 1995-08-26 | 1996-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-24 | 1999-08-26 | 2000-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-24 | 2003-08-26 | 2004-02-25 | $7700.00 | Window Closed / Lapsed |