US4504637A
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Olefin polymerization catalysts and process for producing olefin polymers by using such catalysts
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1983-12-13
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Granted: 1985-03-12
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Expires: 2003-12-13
Abstract
Abstract A catalyst system for the polymerization of olefins comprising: (A) a solid catalyst component containing hydrocarbyloxy groups obtained by reacting a titanium compound represented by the general formula Ti(OR 1 ) n X 3-n (wherein R 1 is a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen atom, and n is a number defined by 0<n≦3) with an ether compound and titanium tetrachloride in a slurry state in the presence of a magnesium halide, and (B) an organoaluminum compound.
Inventors
- 👤 Akinobu Shiga
- 👤 Toshio Sasaki
- 👤 Junpei Kojima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:46
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
86 words
A catalyst system for the polymerization of olefins comprising: (A) a solid catalyst component containing hydrocarbyloxy groups said component being obtained by reacting a titanium compound represented by the general formula Ti(OR 1 ) n X 3-n (wherein R 1 is a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen atom, and n is a number defined by 0<n≦3) with an ether compound and titanium tetrachloride in a slurry state in the presence of a magnesium halide, and (B) an organoaluminum compound.
Claim 2
Dependent Claim
86 words
A catalyst system for the polymerization of olefins comprising: (A) a solid catalyst component containing hydrocarbyloxy groups said component being obtained by reacting a titanium compound represented by the general formula Ti(OR 1 ) n X 3-n (wherein R 1 is a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen atom, and n is a number defined by 0<n≦3) with an ether compound and titanium tetrachloride in a slurry state in the presence of a magnesium halide, and (B) an organoaluminum compound.
Claim 3
Dependent Claim
107 words
A catalyst system according to claim 1, wherein the magnesium halide is one produced by reacting an organomagnesium compound and an aluminum halide compound represented by the general formula R 2 m AlX 3-m (wherein R 2 is an alkyl, aryl or alkenyl group having 1 to 8 carbon atoms, X is a halogen atom, and m is a number defined by 0≦m<3) and/or a silicon halide compound represented by the general formula R 3 l SiX 4-l (wherein R 3 is an alkyl, aryl or alkenyl group having 1 to 8 carbon atoms, X is a halogen atom, and l is a number defined by 0≦l<4).
Claim 4
Dependent Claim
21 words
A catalyst system according to claim 1, wherein X in the general formula Ti(OR 1 ) n X 3-n is chlorine.
Claim 5
Dependent Claim
48 words
A catalyst system according to claim 1, wherein the hydrocarbon group R 1 in the titanium compound represented by the general formula Ti(OR 1 ) n X 3-n is an alkyl group having 2 to 18 carbon atoms or an aryl group having 6 to 18 carbon atoms.
Claim 6
Dependent Claim
14 words
A catalyst system according to claim 1, wherein the ether compound is dialkyl ether.
Claim 7
Dependent Claim
36 words
A catalyst system according to claim 1, wherein the amount of the ether compound added is 0.1 to 5 moles per mole of the compound of the general formula Ti(OR 1 ) n X 3-n .
Claim 8
Dependent Claim
35 words
A catalyst system according to claim 1, wherein the amount of titanium tetrachloride added is 0.1 to 10 moles per mole of the compound of the general formula Ti(OR 1 ) n X 3-n .
Claim 9
Dependent Claim
35 words
A catalyst system according to claim 1, wherein the amount of the hydrocarbyloxy groups contained in the solid catalyst component is 0.001 to 0.3 mole per mole of titanium contained in said solid catalyst component.
Claim 10
Dependent Claim
33 words
A catalyst system according to claim 1, wherein the amount of titanium contained in the solid catalyst component is 0.01 to 2.0 moles per mole of magnesium contained in said solid catalyst component.
Claim 11
Dependent Claim
88 words
A process for producing olefin polymers by using a catalyst system comprising: (A) a solid catalyst component containing hydrocarbyloxy groups said component being obtained by reacting a titanium compound represented by the general formula Ti(OR 1 ) n X 3-n (wherein R 1 is a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen atom, and n is a number defined by 0<n≦3) with an ether compound and titanium tetrachloride in a slurry state in the presence of magnesium halide, and (B) an organoaluminum compound.
Claim 12
Dependent Claim
88 words
A process for producing olefin polymers by using a catalyst system comprising: (A) a solid catalyst component containing hydrocarbyloxy groups said component being obtained by reacting a titanium compound represented by the general formula Ti(OR 1 ) n X 3-n (wherein R 1 is a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen atom, and n is a number defined by 0<n≦3) with an ether compound and titanium tetrachloride in a slurry state in the presence of magnesium halide, and (B) an organoaluminum compound.
Claim 13
Dependent Claim
106 words
A process according to claim 10, wherein the magnesium halide is one produced by reacting an organomagnesium compound with an aluminum halide compound represented by the general formula R 2 m AlX 3-m (wherein R 2 is an alkyl, aryl or alkenyl group having 1 to 8 carbon atoms, X is a halogen atom, and m is a number defined by 0≦m<3) and/or a silicon halide compound represented by the general formula R 3 l SiX 4-l (wherein R 3 is an alkyl, aryl or alkenyl group having 1 to 8 carbon atoms, X is a halogen atom, and l is a number defined by 0≦l<4).
Claim 14
Dependent Claim
20 words
A process according to claim 10, wherein X in the general formula Ti(OR 1 ) n X 3-n is chlorine.
Claim 15
Dependent Claim
47 words
A process according to claim 10, wherein the hydrocarbon group R 1 in the titanium compound represented by the general formula Ti(OR 1 ) n X 3-n is an alkyl group having 2 to 18 carbon atoms or an aryl group having 6 to 18 carbon atoms.
Claim 16
Dependent Claim
13 words
A process according to claim 10, wherein the ether compound is dialkyl ether.
Claim 17
Dependent Claim
35 words
A process according to claim 10, wherein the amount of the ether compound added is 0.1 to 5 moles per mole of the compound of the general formula Ti(OR 1 ) n X 3-n .
Claim 18
Dependent Claim
34 words
A process according to claim 10, wherein the amount of titanium tetrachloride added is 0.1 to 10 moles per mole of the compound of the general formula Ti(OR 1 ) n X 3-n .
Claim 19
Dependent Claim
33 words
A process according to claim 10, wherein the amount of hydrocarbyloxy groups contained in the solid catalyst component is 0.001 to 0.3 mole per mole of titanium contained in said solid catalyst component.
Claim 20
Dependent Claim
32 words
A process according to claim 10, wherein the amount of titanium contained in the solid catalyst component is 0.01 to 2.0 moles per mole of magnesium contained in said solid catalyst component.
References Cited (Backward Citations)
US4093789A
Cited
US4312783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-11 | 1988-09-10 | 1989-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-11 | 1992-09-10 | 1993-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-11 | 1996-09-10 | 1997-03-12 | $7700.00 | Window Closed / Lapsed |