Patent EP0245854A1 successfully refreshed from Google Patents.
EP0245854A1
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Process for producing olefin polymer
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1987-05-14
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Granted: —
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Expires: 2007-05-14
Abstract
Abstract A solid catalyst component containing a trivalent titanium compound, obtained by reducing a titanium compound represented by the general formula Ti(OR¹) n X 4-n (wherein R¹ 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 Ebara
- 👤 Kiyoshi Kawai
- 👤 Akinobu Shiga
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 21:25
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/42; C08F4/72; C08F4/74; C08F4/76; C08F10/00
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
88 words
A solid catalyst component containing a trivalent titanium compound, obtained by reducing a titanium compound represented by the general formula Ti(OR¹) n X 4-n (wherein R¹ 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.
Claim 2
Dependent Claim
88 words
A solid catalyst component containing a trivalent titanium compound, obtained by reducing a titanium compound represented by the general formula Ti(OR¹) n X 4-n (wherein R¹ 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.
Claim 3
Dependent Claim
45 words
A solid catalyst component according to Claim 1, wherein the hydrocarbon group R¹ of the titanium compound represented by the general formula Ti(OR¹) n X 4-n is an alkyl group of 2 to 18 carbon atoms and/or an aryl group of 6 to 18 atoms.
Claim 4
Dependent Claim
26 words
A solid catalyst component according to Claim 1, wherein the X of the titanium compound represented by the general formula Ti(OR¹) n X 4-n is chlorine.
Claim 5
Dependent Claim
33 words
A solid catalyst component according to Claim 1, wherein the n of the titanium compound represented by the general formula Ti(OR¹) n X 4-n is a number satisfying 2 ≦ n ≦ 4.
Claim 6
Dependent Claim
72 words
A solid catalyst component according to Claim 1, wherein the organomagnesium compound is a Grignard compound represented by the general formula R⁹MgX (wherein R⁹ 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 general formula R¹⁰R¹¹Mg (wherein R¹⁰ and R¹¹ are each a hydrocarbon group of 1 to 20 carbon atoms).
Claim 7
Dependent Claim
34 words
A solid catalyst component according to Claim 1, wherein the alcohol compound is an alcohol of 2 to 15 carbon atoms, and the phenol compound is a phenol of 6 to 25 carbon atoms.
Claim 8
Dependent Claim
16 words
A solid catalyst component according to Claim 1, wherein the ether compound is a dialkyl ether.
Claim 9
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 10
Dependent Claim
41 words
A solid catalyst component according to Claim 1, wherein the alcohol compound and/or the phenol compound are used in an amount of 0.5 - 50 in terms of the molar ratio of hydroxyl group to titanium atom in the titanium compound.
Claim 11
Dependent Claim
20 words
A solid catalyst component according to Claim 1, wherein the reduction is conducted at a temperature of -50° to 70°C.
Claim 12
Dependent Claim
33 words
A solid catalyst component according to Claim 1, wherein the ether compound is used in an amount of 0.1 to 100 moles per 1 mole of the titanium atom in the solid product.
Claim 13
Dependent Claim
48 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 the titanium atom in the solid product and in an amount of 1 to 100 moles per 1 mole of the ether compound.
Claim 14
Dependent Claim
31 words
A solid catalyst component according to Claim 1, wherein the solid product is treated with a mixture of an ether compound and titanium tetrachloride in a slurry state using a solvent.
Claim 15
Dependent Claim
23 words
A solid catalyst component according to Claim 13, wherein the solvent is an aliphatic or aromatic hydrocarbon, alicyclic hydrocarbon, or a halogenated hydrocarbon.
Claim 16
Dependent Claim
34 words
A solid catalyst component according to Claim 1, wherein an ester compound is added prior to or during the treatment of the solid product with the mixture of the ether compound and titanium tetrachloride.
Claim 17
Dependent Claim
19 words
A solid catalyst component according to Claim 15, wherein the ester compound is a mono- or polycarboxylic acid ester.
Claim 18
Dependent Claim
23 words
A solid catalyst component according to Claim 1 or 15, wherein a porous substance coexists in the reduction to obtain a solid product.
Claim 19
Dependent Claim
20 words
A solid catalyst component according to Claim 17, wherein the porous substance is silica gel, alumina and/or a porous polymer.
Claim 20
Dependent Claim
25 words
A catalyst system for olefin polymerization comprising: (A) a solid catalyst component according to any of claims 1 to 18, and (B) an organoaluminum compound.
Claim 21
Dependent Claim
82 words
A catalyst system for olefin polymerization according to Claim 19, wherein the organoaluminum compound (B) is a compound having at least one Al-C bond within the molecule and is represented by the general formula R¹² γ AℓY 3-γ or R¹³R¹⁴Aℓ-O-AℓR¹⁵R¹⁶ (wherein R¹², R¹³, R¹⁴, R¹⁵ and R¹⁶ are each a hydrocarbon group of 1 to 8 carbon atoms; Y is a halogen atom, a hydrogen atom or an alkoxy group; and Y is a number of satisfying 2 ≦ γ ≦ 3).
Claim 22
Dependent Claim
30 words
A catalyst system for olefin polymerization according to Claim 20, wherein the organoaluminum compound is a trialkylaluminum, a mixture of a trialkylaluminum and a dialkylaluminum halide, or an alkyl alumoxane.
Claim 23
Dependent Claim
36 words
A catalyst system for olefin polymerization according to Claim 19, wherein an ester compound is added prior to or during the treatment of the solid product with the mixture of the ether compound and titanium tetrachloride.
Claim 24
Dependent Claim
21 words
A catalyst system for olefin polymerization according to Claim 22, wherein the ester compound is a mono- or polycarboxylic acid ester.
Claim 25
Dependent Claim
21 words
A catalyst system for olefin polymerization according to Claim 22, wherein an electron-donating compound is added as a third component (C).
Claim 26
Dependent Claim
21 words
A catalyst system for olefin polymerization according to Claim 24, wherein the electron-donating compound is an organic carboxilic-, phosphorous-, silicic-acid ester.
Claim 27
Dependent Claim
26 words
A catalyst system for olefin polymerization according to Claim 19, 22 or 24, wherein a porous substance coexists in the reduction to obtain a solid product.
Claim 28
Dependent Claim
22 words
A catalyst system for olefin polymerization according to Claim 26, wherein the porous substance is silica gel, alumina and/or a porous polmer.
Claim 29
Dependent Claim
62 words
A process for producing an olefin polymer, which comprises homopolymerizing an olefin or copolymerizing olefins using a catalyst system comprising: (A) a solid catalyst component according to any of claims 1 to 18, and (B) an organoaluminum compound as disclosed in any of claims 19 to 27 at a temperature of -30° to 200°C under a pressure of 3 to 100 atom.
Claim 30
Dependent Claim
32 words
A process according to Claim 28, wherein an ester compound is added prior to or during the treatment of the solid product with the mixture of the ether compound and titanium tetrachloride.
Claim 31
Dependent Claim
17 words
A process according to Claim 29, wherein the ester compound is a mono- or polycarboxylic acid ester.
Claim 32
Dependent Claim
17 words
A process according to Claim 29, wherein an electron-donating compound is added as a third component (C).
Claim 33
Dependent Claim
18 words
A process according to Claim 31, wherein the electron-donating compound is an organic carboxylic-, phosphorous-, or silicic-acid ester.
Claim 34
Dependent Claim
22 words
A process according to Claim 28, 29 or 31, wherein a porous substance coexists in the reduction to obtain a solid product.
Claim 35
Dependent Claim
18 words
A process according to Claim 33, wherein the porous substance is silica gel, alumina and/or a porous polymer.
References Cited (Backward Citations)
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