Patent US1859167A successfully refreshed from Google Patents.
US4806433A
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US
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Process for producing olefin polymer
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1987-05-11
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Granted: 1989-02-21
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Expires: 2007-05-11
Abstract
Abstract A solid catalyst component containing a trivalent titanium compound, obtained by reducing a titanium compound represented by the general formula Ti(OR 1 ) n X 4-n (wherein R 1 is a hydrocarbon group of 1 to 20 carbon atoms, X is a halogen atom, and n is a number satisfying 0<n≦4) with an organomagnesium compound in the presence of an alcohol compound and/or a phenol compound to obtain a solid product and then treating the solid product with a mixture of an ether compound and titanium tetrachloride; a catalyst system comprising: (A) said solid catalyst component, and (B) an organoaluminum compound; and a process for producing an olefin polymer, which comprises homopolymerizing an olefin or copolymerizing olefins using said catalyst system.
Inventors
- 👤 Toshio Sasaki
- 👤 Takeshi Ebera
- 👤 Kiyoshi Kawai
- 👤 Akinobu Shiga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:35
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/42; C08F4/72; C08F4/74; C08F4/76; C08F10/00
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
96 words
A solid catalyst component containing a trivalent titanium compound, obtained by reducing a titanium compound represented by the general formula Ti(OR 1 ) n X 4-n (wherein R 1 is a hydrocarbon group of 1 to 20 carbon atoms, X is a halogen atom, and n is a number satisfying 0<n≦4) with an organomagnesium compound in the presence of an alcohol of 2 to 15 carbon atoms and/or a phenol of 6 to 15 carbon atoms to obtain a solid product and then treating the solid product with a mixture of dialkyl ether and titanium tetrachloroide.
Claim 2
Dependent Claim
96 words
A solid catalyst component containing a trivalent titanium compound, obtained by reducing a titanium compound represented by the general formula Ti(OR 1 ) n X 4-n (wherein R 1 is a hydrocarbon group of 1 to 20 carbon atoms, X is a halogen atom, and n is a number satisfying 0<n≦4) with an organomagnesium compound in the presence of an alcohol of 2 to 15 carbon atoms and/or a phenol of 6 to 15 carbon atoms to obtain a solid product and then treating the solid product with a mixture of dialkyl ether and titanium tetrachloroide.
Claim 3
Dependent Claim
46 words
A solid catalyst component according to claim 1, wherein the hydrocarbon group R 1 of the titanium compound represented by the general formula Ti(OR 1 ) n X 4-n is salkyl groups of 2 to 18 carbon atoms and/or aryl groups of 6 to 18 atoms.
Claim 4
Dependent Claim
28 words
A solid catalyst component according to claim 1, wherein the X of the tiatanium compound represented by the general formula Ti(OR 1 ) n X 4-n is chlorine.
Claim 5
Dependent Claim
32 words
A solid catalyst component according to claim 1, wherein the n of the titanium compound represented by the general formula Ti(OR 1 ) n X 4-n is a number satisfying 2 ≦n≦4.
Claim 6
Dependent Claim
81 words
A solid catalyst component according to claim 1, wherein the organomagnesium compound is a Grignard compound represented by the general formula R 9 MgX (wherein R 9 is a hydrocarbon group of 1 to 20 carbon atoms and X is a halogen atom), or a dialkyl magnesium compound or a diaryl magnesium compound both represented by the genreal formula R 10 R 11 Mg (wherein R 10 and R 11 are each a hydrocarbon group of 1 to 20 carbon atoms).
Claim 7
Dependent Claim
39 words
A solid catalyst component according to claim 1, wherein the organomagnesium compound is used in an amount of 0.1 to 10 in terms of the molar ratio of the sum of titanium atom and hydroxyl group to magnesium atom.
Claim 8
Dependent Claim
36 words
A solid catalyst component according to claim 1, wherein the alcohol and/or the phenol are used in an amount of 0.5-50 in terms of the molar ratio of hydroxyl group to titanium atom in titanium compound.
Claim 9
Dependent Claim
21 words
A solid catalyst component according to claim 1, wherein the reduction is conducted at a temperature of -50° to 70° C.
Claim 10
Dependent Claim
31 words
A solid catalyst component according to claim 1, wherein the dialkyl ether is used in an amount of 0.1 to 100 moles per 1 mole of titanium atom in solid product.
Claim 11
Dependent Claim
45 words
A solid catalyst component according to claim 1, wherein titanium tetrachloride is used in an amount of 1 to 1,000 moles per 1 mole of titanium atom in solid product and in an amount of 1 to 100 moles per 1 mole of alkalyl ether.
Claim 12
Dependent Claim
31 words
A solid catalyst component according to claim 1, wherein the solid product is treated with a mixture of the dialkyl ether and titanium tetrachloride in a slurry state using a solvent.
Claim 13
Dependent Claim
23 words
A solid catalyst component according to claim 11, wherein the solvent is an aliphatic or aromatic hydrocarbon, alicyclic hydrocarbon, or a halogenated hydrocarbon.
Claim 14
Dependent Claim
37 words
A solid catalyst component according to claim 1, wherein a mono- or polycarboxylic acid ester is added prior to or during the treatment of the solid product with the mixture of the dialkyl ether and titanium tetrachloride.
Claim 15
Dependent Claim
24 words
A solid catalyst component according to claim 1 or 13, wherein a porous substance is coexisted in the reduction to obtain a solid product.
Claim 16
Dependent Claim
19 words
A solid catalyst component according to claim 14, wherein the porous substances are silica gel, alumina or porous polymer.
Claim 17
Dependent Claim
110 words
A catalyst system for olefin polymerization comprising: (A) a solid catalyst component containing a trivalent titanium compound, obtained by reducing a titanium compound represent by the general formula Ti(OR 1 ) n X 4-n (wherein R 1 is a hydrocarbon group of 1 to 20 carbon atoms, X is a halogen atom, and n is a number satisfying 0<n≦4) with an organomagnesium compound in the presence of an alcohol of 2 to 15 carbon atoms and/or a phenol of 6 to 15 carbon atoms to obtain a solid product and then treating the solid product with a mixture of a dialkyl ether and titanium tetrachloride, and (B) an organoaluminum compound.
Claim 18
Dependent Claim
110 words
A catalyst system for olefin polymerization comprising: (A) a solid catalyst component containing a trivalent titanium compound, obtained by reducing a titanium compound represent by the general formula Ti(OR 1 ) n X 4-n (wherein R 1 is a hydrocarbon group of 1 to 20 carbon atoms, X is a halogen atom, and n is a number satisfying 0<n≦4) with an organomagnesium compound in the presence of an alcohol of 2 to 15 carbon atoms and/or a phenol of 6 to 15 carbon atoms to obtain a solid product and then treating the solid product with a mixture of a dialkyl ether and titanium tetrachloride, and (B) an organoaluminum compound.
Claim 19
Dependent Claim
86 words
A catalyst system for olefin polymerization according to claim 16, wherein the organoaluminum compound (B) is a compound having at least one Al-C bond within the molecule and represented by the general formula R.sup.12.sub.γ AlY.sub.3-γ or R.sup.13 R.sup.14 Al--O--AlR.sup.15 R.sup.16 (wherein R 12 , R 13 , R 14 , R 15 and R 16 are each a hydrocarbon group of 1 to 8 carbon atoms; Y is a halogen atom, a hydrogen atom or an alkoxy group; and γ is a number of satisfying 2≦γ≦3).
Claim 20
Dependent Claim
30 words
A catalyst system for olefin polymerization according to claim 17, wherein the organoaluminum compound is a trialkylaluminum, a mixture of a trialkylaluminum and a dialkylaluminum halide, or an alkyl alumoxane.
Claim 21
Dependent Claim
39 words
A catalyst system for olefin polymerization according to claim 16, wherein a mono- or polycarboxylic acid ester is added prior to or during the treatment of the solid product with the mixture of the dialkyl ether and titanium tetrachloride.
Claim 22
Dependent Claim
21 words
A catalyst system for olefin polymerization according to claim 19, wherein an electron-donating compound is added as a third component (C).
Claim 23
Dependent Claim
22 words
A catalyst system for olefin polymerization according to claim 20, wherein the electron-donating compound is an organic carboxylic-, phosphorouos-, or silicic-acid ester.
Claim 24
Dependent Claim
27 words
A catalyst system for olefin polymerization according to claim 16, 19, or 20, wherein a porous substance is coexisted in the reduction to obtain a solid product.
Claim 25
Dependent Claim
21 words
A catalyst system for olefin polymerization according to claim 22, wherein the porous substances are silica gel, alumina or porous polymer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1992-02-21 | 1992-08-22 | 1993-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-21 | 1996-08-22 | 1997-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-21 | 2000-08-22 | 2001-02-21 | $7700.00 | Window Closed / Lapsed |