US4339560A
Expired / Lapsed
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Process for polymerizing olefins
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1980-07-03
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Granted: 1982-07-13
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Expires: 2000-07-03
Abstract
Abstract A process for the polymerization of an olefin which comprises polymerizing an olefin in the presence of a catalyst system consisting essentially of (A) an organoaluminum compound represented by the formula: AlRm1X3-m1 wherein R1 is a hydrocarbon group having 1 to 8 carbon atoms, X1 is a halogen atom or an alkoxy group having 1 to 8 atoms and m is a number in the range of 1 to 3, (B) a product prepared by the reaction of (i) a titanium compound selected from the group represented by the formula: Ti(OR2)pXq2 wherein R2 is a hydrocarbon group having 1 to 8 carbon atoms, X2 is a halogen atom and p and q are each a number satisfying the following ranges: 0</=p</=4, 0</=q</=4 and p+q=3 or 4, with (ii) a reaction product in a hydrocarbon solvent of a Lewis base selected from the group consisting of ethers, esters of carboxylic acids and phosphite compounds with a solid organomagnesium halide which is obtained by the reaction of magnesium and a halogenated hydrocarbon compound represented by the formula: R3X3 wherein R3 is a hydrocarbon group having 1 to 20 carbon atoms and X3 is a halogen atom in an hydrocarbon solvent, and has a general formula: MgRl3X2-l3 wherein R3 and X3 are as defined above and is a number in the range of 1.5>/=l>/=0.005, and optionally (C) an ester of a carboxylic acid in an amount of up to 1 mole per 1 mole of the organoaluminum compound (A).
Inventors
- 👤 Kazuo Baba
- 👤 Kizuku Wakatsuki
- 👤 Tadashi Hikasa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:36
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
298 words
A catalyst system for the polymerization of olefins consisting essentially of (A) an organoaluminum compound represented by the formula: AlR m 1 X 3-m 1 wherein R 1 is a hydrocarbon group having 1 to 8 carbon atoms, X 1 is a halogen atom or an alkoxy group having 1 to 8 carbon atoms and m is a number in the range of 1 to 3, and (B) a product prepared by reacting a solid organomagnesium halide which is obtained by the reaction of magnesium and a halogenated hydrocarbon compound represented by the formula: R 3 X 3 wherein R 3 is a hydrocarbon group having 1 to 20 carbon atoms and X 3 is a halogen atom in an hydrocarbon solvent and has a general formula: MgR l 3 X 2-l 3 wherein R 3 and X 3 are as defined above and l is a number in the range of 1.25≧l≧0.01 with an ether selected from the group consisting of diethyl ether, di-n-propyl ether, di-n-butyl ether, di-isoamyl ether, anisole, ethyl phenyl ether, diphenyl ether, tetrahydrofuran and dioxane in a hydrocarbon solvent at 0° C. to 50° C., the molar ratio of ether to solid organomagnesium halide being in the range of 0.01/1 to 10/1, and reacting the thus obtained activated solid organomagnesium halide with a titanium compound selected from the group represented by the formula: Ti(OR 2 ) p X q 2 wherein R 2 is a hydrocarbon group having 1 to 8 carbon atoms, X 2 is a halogen atom and p and q are each a number satisfying the following ranges: 0≦p≦4, 0≦q≦4 and p+q=3 or 4, at a temperature of -60° C. to 200° C., the molar ratio of titanium compound to activated organomagnesium halide being in the range of 0.01/1 to 100/1.
Claim 2
Dependent Claim
298 words
A catalyst system for the polymerization of olefins consisting essentially of (A) an organoaluminum compound represented by the formula: AlR m 1 X 3-m 1 wherein R 1 is a hydrocarbon group having 1 to 8 carbon atoms, X 1 is a halogen atom or an alkoxy group having 1 to 8 carbon atoms and m is a number in the range of 1 to 3, and (B) a product prepared by reacting a solid organomagnesium halide which is obtained by the reaction of magnesium and a halogenated hydrocarbon compound represented by the formula: R 3 X 3 wherein R 3 is a hydrocarbon group having 1 to 20 carbon atoms and X 3 is a halogen atom in an hydrocarbon solvent and has a general formula: MgR l 3 X 2-l 3 wherein R 3 and X 3 are as defined above and l is a number in the range of 1.25≧l≧0.01 with an ether selected from the group consisting of diethyl ether, di-n-propyl ether, di-n-butyl ether, di-isoamyl ether, anisole, ethyl phenyl ether, diphenyl ether, tetrahydrofuran and dioxane in a hydrocarbon solvent at 0° C. to 50° C., the molar ratio of ether to solid organomagnesium halide being in the range of 0.01/1 to 10/1, and reacting the thus obtained activated solid organomagnesium halide with a titanium compound selected from the group represented by the formula: Ti(OR 2 ) p X q 2 wherein R 2 is a hydrocarbon group having 1 to 8 carbon atoms, X 2 is a halogen atom and p and q are each a number satisfying the following ranges: 0≦p≦4, 0≦q≦4 and p+q=3 or 4, at a temperature of -60° C. to 200° C., the molar ratio of titanium compound to activated organomagnesium halide being in the range of 0.01/1 to 100/1.
Claim 3
Dependent Claim
38 words
A catalyst system according to claim 1, wherein said solid organomagnesium halide is a member selected from the group consisting of methyl-, ethyl-, butyl- and octyl-magnesium chloride, bromide and iodide, naphthyl magnesium chloride, p-tolylmagnesium chloride, and 2,4,6-trimethylphenylmagnesium chloride.
Claim 4
Dependent Claim
17 words
A catalyst system according to claim 1, wherein l is a number in the range of 0.95≧l≧0.01.
Claim 5
Dependent Claim
47 words
A catalyst system according to claim 1, wherein the hydrocarbon solvent used for the reaction of an ether with solid organomagnesium halide or the reaction of magnesium and a halogenated hydrocarbon compound is a member selected from the group consisting of n-hexane, cyclohexane, n-heptane, benzene, and toluene.
Claim 6
Dependent Claim
29 words
A catalyst system according to claim 1, wherein the amount of the ether is in the range of 0.1 to 2 moles per 1 mole of the organomagnesium halide.
Claim 7
Dependent Claim
34 words
A catalyst system according to claim 1, wherein the organoaluminum compound is a trialkylaluminum of the formula: Al(R 1 ) 3 wherein R 1 is an alkyl group having 1 to 8 carbon atoms.
Claim 8
Dependent Claim
74 words
A catalyst system according to claim 1, wherein the organoaluminum compound is a mixture of a trialkylaluminum of the formula: Al(R 1 ) 3 and a dialkylaluminum halide of the formula: Al(R 1 ) 2 X 1 wherein R 1 is an alkyl group having 1 to 8 carbon atoms and X 1 is a halogen atom, in a mixed ratio of the trialkylaluminum to the dialkylaluminum halide of 4:1 to 1:4 by mole.
Claim 9
Dependent Claim
14 words
A catalyst system according to claim 1, wherein the titanium compound is titanium tetrachloride.
Claim 10
Dependent Claim
58 words
A catalyst system according to claim 1, and further including an ester of a carboxylic acid in an amount of up to 1 mole per 1 mole of the organoaluminum compound (A), wherein the organoaluminum compound (A) is used in an amount of 1 to 10,000 moles per 1 molar atom of titanium atom in the product (B).
Claim 11
Dependent Claim
54 words
A process for producing an olefin polymer which comprises polymerizing an olefin having 2 to 8 carbon atoms at 20° to 200° C. under normal pressure to 100 kg/cm 2 in the presence of a catalyst system as set forth in anyone of claims 1, 9, 2, 3, 4, 5, 6, 7 or 8.
Claim 12
Dependent Claim
22 words
A process according to claim 10, wherein said monomer is a member selected from the group consisting of ethylene, propylene and butene-1.
Claim 13
Dependent Claim
21 words
A process according to claim 10, wherein said monomer is a member selected from the group consisting of ethylene and propylene.
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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) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |