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US4940682A
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Solid catalyst component for olefin polymerization
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1988-10-26
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Granted: 1990-07-10
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Expires: 2008-10-26
Abstract
Abstract A solid catalyst component for olefin polymerization which comprises a catalyst component comprising at least titanium and chlorine fixed onto a porous substance of which the pore volume, at a pore radius in a range of from 200 to 2,000 Å, is 0.3 cc/g or more, said pore volume is 35% or more of the pore volume at a pore radius in a range of from 35 to 75,000 Å, the average particle diameter is from 5 to 300 μm, the geometrical standard deviation of the particle size distribution is 2 or less and the solubility in toluene at 100° C. is 30 wt. % or less.
Inventors
- 👤 Toshio Sasaki
- 👤 Takeshi Ebara
- 👤 Kiyoshi Kawai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:51
CPC Classifications
C; C08; C08F; C08F10/00; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/64; C08F4/65; C08F4/652; C08F4/654; Y; Y10; Y10S; Y10S526/00; Y10S526/904; Y10S526/908
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
137 words
A solid catalyst component for olefin polymerization which comprises a catalyst component comprising a titanium trichloride catalyst or a titanium/magnesium composite catalyst containing chlorine fixed onto a porous substance of which the pore volume, at a pore radius in a range of from 200 to 2,000 Å is 0.3 cc/g or more, said pore volume is 35% or more of the pore volume at a pore radius in a range of from 35 to 75,000 Å, the average particle diameter is from 5 to 300 μm, the geometrical standard deviation of the particle size distribution is 2 or less and the solubility in toluene at 100° C. is 30 wt. % or less, the amount of the catalyst component to be fixed being from 1 to 70 wt. % as a content in the solid catalyst component.
Claim 2
Dependent Claim
137 words
A solid catalyst component for olefin polymerization which comprises a catalyst component comprising a titanium trichloride catalyst or a titanium/magnesium composite catalyst containing chlorine fixed onto a porous substance of which the pore volume, at a pore radius in a range of from 200 to 2,000 Å is 0.3 cc/g or more, said pore volume is 35% or more of the pore volume at a pore radius in a range of from 35 to 75,000 Å, the average particle diameter is from 5 to 300 μm, the geometrical standard deviation of the particle size distribution is 2 or less and the solubility in toluene at 100° C. is 30 wt. % or less, the amount of the catalyst component to be fixed being from 1 to 70 wt. % as a content in the solid catalyst component.
Claim 3
Dependent Claim
23 words
A solid catalyst component for olefin polymerization according to claim 1, wherein the porous substance is porous inorganic oxides or porous organic polymers.
Claim 4
Dependent Claim
19 words
A solid catalyst component for olefin polymerization according to claim 1, wherein the porous substance is porous organic polymers.
Claim 5
Dependent Claim
52 words
A solid catalyst component for olefin polymerization according to claim 2, wherein the porous inorganic oxide is SiO 2 , Al 2 O 3 , MgO, TiO 2 , ZrO 2 , SiO 2 .Al 2 O 3 , MgO.Al 2 O 3 , or MgO.SiO 2 .Al 2 O 3 .
Claim 6
Dependent Claim
23 words
A solid catalyst component for olefin polymerization according to claim 2, wherein the porous organic polymer is polystyrene-series, polyvinylchloride-series, polyolefin-series or polyacrylonitrile-series polymers.
Claim 7
Dependent Claim
22 words
A solid catalyst component for olefin polymerization according to claim 4, wherein the porous organic polymer is styrene-divinylbenzene copolymer or acrylonitrile-divinylbenzene copolymer.
Claim 8
Dependent Claim
54 words
A solid catalyst component according to claim 1, wherein the catalyst component is fixed onto the porous substance by a method comprising reducing an alkoxytitanium compound with an organo-magnesium compound in the coexsistence of the porous substance, and then treating the resulting solid product with a mixture of an ether compound and titanium tetrachloride.
Claim 9
Dependent Claim
49 words
A solid catalyst component for olefin polymerization according to claim 1, wherein the catalyst component is fixed onto the porous substance by a method comprising reducing an alkoxytitanium compound with an organomagnesium compound in the coexistence of an organosilicone compound having an Si--O bond and an organic porous polymer.
Claim 10
Dependent Claim
60 words
A solid catalyst component according to claim 1, wherein a titanium compound for producing the titanium trichloride catalyst or the titanium/magnesium composite catalyst is one represented by the general formula Ti(OR 1 ) a X b (wherein R 1 is C 1 -C 20 hydrocarbon residue, X is halogen atom, a is 0≦a≦4, b is 0≦b≦4, and a+b=3 or 4).
Claim 11
Dependent Claim
33 words
A solid catalyst component for olefin polymerization according to claim 1, wherein the titanium/magnesium composite catalyst is produced from a magnesium compound containing a magnesium-carbon bond or magnesium-hydrogen bond having a reducing power.
Claim 12
Dependent Claim
26 words
A solid catalyst component for olefin polymerization according to claim 1, wherein the titanium/magnesium composite catalyst is produced from a magnesium compound having no reducing power.
Claim 13
Dependent Claim
39 words
A solid catalyst component for olefin polymerization according to claim 10, wherein the magnesium compound having a reducing power is selected from the group consisting of diethylmagnesium, dibutylmagnesium, dihexylmagnesium, ethylmagnesium chloride, butylmagnesium chloride, hexylmagnesium chloride, butylethoxymagnesium and butylmagnesium hydride.
Claim 14
Dependent Claim
33 words
A solid catalyst component for olefin polymerization according to claim 11, wherein the magnesium compound having no reducing power selected from the group consisting of magnesium dihalide, alkoxymagnesium compound, and carboxylate of magnesium.
References Cited (Backward Citations)
JPS5580418A
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JPS5761012A
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JPS5971306A
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JPS59105008A
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JPS59230011A
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US4806433A
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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) | 1993-07-09 | 1994-01-08 | 1994-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-09 | 1998-01-08 | 1998-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-09 | 2002-01-08 | 2002-07-10 | $7700.00 | Window Closed / Lapsed |