US4533706A
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Catalyst and process using same for producing olefin polymer
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1983-12-13
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Granted: 1985-08-06
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Expires: 2003-12-13
Abstract
Abstract A catalyst system for the polymerization of olefins which comprises; (A) a hydrocarbyloxy group-containing solid catalyst component prepared by (i) reducing a titanium compound represented by the general formula Ti(OR1)nX4-n wherein, R1 represents a hydrocarbon radical of 1-20 carbon atoms, X represents a halogen atom, and n represents a number satisfying 0<n</=4, with an organoaluminum compound represented by the general formula AlR2mY3-m wherein, R2 represents a hydrocarbon radical of 1-20 carbon atoms, Y represents a halogen atom, and m represents a number satisfying 1</=m</=3, and (ii) treating the resulting, hydrocarbon solvent-insoluble, hydrocarbyloxy group-containing solid product in a slurry state with an ether compound and titanium tetrachloride at a temperature of 30 DEG -120 DEG C., and (B) an organoaluminum compound.
Inventors
- 👤 Akinobu Shiga
- 👤 Toshio Sasaki
- 👤 Junpei Kojima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:31
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
131 words
A catalyst system for the polymerization of olefins which comprises: (A) a hydrocarbyloxy group-containing solid catalyst component, said component being prepared by (i) reducing a titanium compound represented by the general formula Ti(OR.sup.1).sub.n X.sub.4-n wherein, R 1 represents a hydrocarbon radical having 1-20 carbon atoms, X represents a halogen atom, and n represents a number satisfying 0.3≦n≦4, with an organoaluminum compound represented by the general formula AlR.sup.2.sub.m Y.sub.3-m wherein, R 2 represents a hydrocarbon radical having 1-20 carbon atoms, Y represents a halogen atom, and m represents a number satisfying 1≦m≦3, in the absence of ether and (ii) treating the resulting, hydrocarbon solvent-insoluble, hydrocarbyloxy group-containing solid product in a slurry state with an ether compound and titanium tetrachloride at a temperature of 30° to 120° C., and (B) an organoaluminum compound.
Claim 2
Dependent Claim
131 words
A catalyst system for the polymerization of olefins which comprises: (A) a hydrocarbyloxy group-containing solid catalyst component, said component being prepared by (i) reducing a titanium compound represented by the general formula Ti(OR.sup.1).sub.n X.sub.4-n wherein, R 1 represents a hydrocarbon radical having 1-20 carbon atoms, X represents a halogen atom, and n represents a number satisfying 0.3≦n≦4, with an organoaluminum compound represented by the general formula AlR.sup.2.sub.m Y.sub.3-m wherein, R 2 represents a hydrocarbon radical having 1-20 carbon atoms, Y represents a halogen atom, and m represents a number satisfying 1≦m≦3, in the absence of ether and (ii) treating the resulting, hydrocarbon solvent-insoluble, hydrocarbyloxy group-containing solid product in a slurry state with an ether compound and titanium tetrachloride at a temperature of 30° to 120° C., and (B) an organoaluminum compound.
Claim 3
Dependent Claim
20 words
The catalyst system of claim 1, wherein n of the general formula Ti(OR 1 ) n X 4-n satisfies 1≦n≦4.
Claim 4
Dependent Claim
20 words
The catalyst system of claim 1, wherein X of the general formula Ti(OR 1 ) n X 4-n is chlorine.
Claim 5
Dependent Claim
36 words
The catalyst system of claim 1, wherein R 1 of the general formula Ti(OR 1 ) n X 4-n is a linear alkyl radical having 2-18 carbon atoms and/or an aryl radical having 6-18 carbon atoms.
Claim 6
Dependent Claim
14 words
The catalyst system of claim 1, wherein the ether compound is a dialkyl ether.
Claim 7
Dependent Claim
32 words
The catalyst system of claim 1, wherein the amount of the ether compound used for the treatment is 0.1 to 5 moles per 1 mole of titanium contained in said solid product.
Claim 8
Dependent Claim
31 words
The catalyst system of claim 1, wherein the amount of titanium tetrachloride used for the treatment is 0.1 to 10 moles per 1 mole of titanium contained in said solid product.
Claim 9
Dependent Claim
28 words
The catalyst system of claim 1, wherein the hydrocarbyloxy group content in the solid catalyst component is 0.001 to 0.3 mole per 1 mole of titanium contained therein.
Claim 10
Dependent Claim
49 words
The catalyst system of claim 1, wherein the reduction of the titanium compound represented by the general formula Ti(OR 1 ) n X 4-n with an organoaluminum compound represented by the general formula AlR 2 m Y 3-m is carried out at a temperature of 10° to 80° C.
Claim 11
Dependent Claim
131 words
A process for producing olefin polymers using a catalyst system which comprises (A) a hydrocarbyloxy group-containing solid catalyst component, said component being prepared by (i) reducing a titanium compound represented by the general formula Ti(OR.sup.1).sub.n X.sub.4-n wherein, R 1 represents a hydrocarbon radical having 1-20 carbon atoms, X represents a halogen atom, and n represents a number satisfying 0<n≦4, with an organoaluminum compound represented by the general formula AlR.sup.2.sub.m Y.sub.3-m wherein, R 2 represents a hydrocarbon radical having 1-20 carbon atoms, Y represents a halogen atom, and m represents a number satisfying 1≦m≦3, in the absence of ether and (ii) treating the resulting, hydrocarbon solvent-insoluble, hydrocarbyloxy group-containing solid product in a slurry state with an ether compound and titanium tetrachloride at a temperature of 30-120° C., and (B) an organoaluminum compound.
Claim 12
Dependent Claim
131 words
A process for producing olefin polymers using a catalyst system which comprises (A) a hydrocarbyloxy group-containing solid catalyst component, said component being prepared by (i) reducing a titanium compound represented by the general formula Ti(OR.sup.1).sub.n X.sub.4-n wherein, R 1 represents a hydrocarbon radical having 1-20 carbon atoms, X represents a halogen atom, and n represents a number satisfying 0<n≦4, with an organoaluminum compound represented by the general formula AlR.sup.2.sub.m Y.sub.3-m wherein, R 2 represents a hydrocarbon radical having 1-20 carbon atoms, Y represents a halogen atom, and m represents a number satisfying 1≦m≦3, in the absence of ether and (ii) treating the resulting, hydrocarbon solvent-insoluble, hydrocarbyloxy group-containing solid product in a slurry state with an ether compound and titanium tetrachloride at a temperature of 30-120° C., and (B) an organoaluminum compound.
Claim 13
Dependent Claim
19 words
The process of claim 10, wherein n of the general formula Ti(OR 1 ) n X 4-n satisfies 1≦n≦4.
Claim 14
Dependent Claim
19 words
The process of claim 10, wherein X of the general formula Ti(OR 1 ) n X 4-n is chlorine.
Claim 15
Dependent Claim
35 words
The process of claim 10, wherein R 1 of the general formula Ti(OR 1 ) n X 4-n is a linear alkyl radical having 2-18 carbon atoms and/or an aryl radical having 6-18 carbon atoms.
Claim 16
Dependent Claim
13 words
The process of claim 10, wherein the ether compound is a dialkyl ether.
Claim 17
Dependent Claim
31 words
The process of claim 10, wherein the amount of the ether compound used for the treatment is 0.1 to 5 moles per 1 mole of titanium contained in said solid product.
Claim 18
Dependent Claim
30 words
The process of claim 10, wherein the amount of titanium tetrachloride used for the treatment is 0.1 to 10 moles per 1 mole of titanium contained in said solid product.
Claim 19
Dependent Claim
27 words
The process of claim 10, wherein the hydrocarbyloxy group content in the solid catalyst component is 0.001 to 0.3 mole per 1 mole of titanium contained therein.
Claim 20
Dependent Claim
48 words
The process of claim 10, wherein the reduction of the titanium compound represented by the general formula Ti(OR 1 ) n X 4-n with an organoaluminum compound represented by the general formula AlR 2 m Y 3-m is carried out at a temperature of 10° to 80° C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-05 | 1989-02-04 | 1989-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-05 | 1993-02-04 | 1993-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-05 | 1997-02-04 | 1997-08-06 | $7700.00 | Window Closed / Lapsed |