US4647550A
Expired / Lapsed
US
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Catalyst component for polymerization of olefins
Assignee: Tonen General Sekiyu KK
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Filing: 1985-07-31
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Granted: 1987-03-03
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Expires: 2005-07-31
Abstract
Abstract A catalyst component for the polymerization of olefins which is prepared by contacting a contact reaction product of (a) a metal oxide, (b) an organic magnesium compound, and (c) an alkoxy group-containing compound held in contact with (d) a titanium compound.
Inventors
- 👤 Tadanao Kohora
- 👤 Satoshi Ueki
- 👤 Mamoru Tachikawa
- 👤 Chihiro Imai
- 👤 Tokuo Makishima, deceased
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:44
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
180 words
A titanium containing supported catalyst component comprising the product obtained by contacting (1) a reaction product comprising (a) a metal oxide or a composite of metal oxides of Group II, III, or IV of the Periodic Table, (b) a magnesium compound represented by the formula RMgR', mixtures thereof, or a complex with an organic compound of aluminum, boron, beryllium, or zinc, wherein R represents a hydrocarbyl group having from 1 to 20 carbon atoms and R' represents a hydroxarbyl group having from 1 to 20 carbon atoms or a halogen atom, and (c) a alkoxy group-containing organic compound represented by the formula X m C(OR) 4 m wherein X denotes a hydrogen atom, a halogen atom, or a hydrocarbyl group selected from alkyl, cycloalkyl, aryl or aralkyl groups having from 1 to 20 carbon atoms or a halogen substituted hydrocarhyl group, R denotes a hydrocarbyl group selected from alkyl, cycloalkyl, aryl or aralkyl groups having from 1 to 20 carbon atoms and m is selected from 0, 1 or 2, with (2) (d) a di-, tri-, or tetravalent titanium compound.
Claim 2
Dependent Claim
180 words
A titanium containing supported catalyst component comprising the product obtained by contacting (1) a reaction product comprising (a) a metal oxide or a composite of metal oxides of Group II, III, or IV of the Periodic Table, (b) a magnesium compound represented by the formula RMgR', mixtures thereof, or a complex with an organic compound of aluminum, boron, beryllium, or zinc, wherein R represents a hydrocarbyl group having from 1 to 20 carbon atoms and R' represents a hydroxarbyl group having from 1 to 20 carbon atoms or a halogen atom, and (c) a alkoxy group-containing organic compound represented by the formula X m C(OR) 4 m wherein X denotes a hydrogen atom, a halogen atom, or a hydrocarbyl group selected from alkyl, cycloalkyl, aryl or aralkyl groups having from 1 to 20 carbon atoms or a halogen substituted hydrocarhyl group, R denotes a hydrocarbyl group selected from alkyl, cycloalkyl, aryl or aralkyl groups having from 1 to 20 carbon atoms and m is selected from 0, 1 or 2, with (2) (d) a di-, tri-, or tetravalent titanium compound.
Claim 3
Dependent Claim
51 words
The titanium containing supported catalyst component of claim 1 wherein the metal oxide is selected from the group consisting of B 2 O 3 , MgO, Al 2 O 3 , SiO 2 , CaO, TiO 2 , ZnO, ZrO 2 , SnO 2 , BaO 2 or ThO 2 .
Claim 4
Dependent Claim
17 words
The titanium containing supported catalyst component of claim 2 wherein the metal oxide is SiO 2 .
Claim 5
Dependent Claim
22 words
The titanium containing supported catalyst component of claim 1 wherein the magnesium compound is one of n-butyl ethylmagnesium or n-butyl magnesium chloride.
Claim 6
Dependent Claim
29 words
The titanium containing supported catalyst component of claim 1 wherein the titanium compound is selected from the group consisting of titanium tetrachloride, trichloroethoxy titanium, dichlorodibutoxy titanium and dichlorodiphenoxy titanium.
Claim 7
Dependent Claim
16 words
The titanium containing supported catalyst component of claim 5 wherein the titanium compound in titanium tetrachloride.
Claim 8
Dependent Claim
45 words
The titanium containing supported catalyst component of claim 1 wherein the reaction product is contacted with one of a halogen-containing compound, electron-donating compound, an organic aluminum compound or mixtures thereof prior to or subsequently to the contact of the reaction product with the titanium compound.
Claim 9
Dependent Claim
19 words
The titanium containing supported catalyst component of claim 4 wherein the reaction product is contacted with SiCl 4 .
Claim 10
Dependent Claim
30 words
The titanium containing supported catalyst component of claim 1 wherein the alkoxy group-containing compound is selected from the group consisting of ortho-ethyl formate, ortho-methyl formate, ortho-methyl carbonate, or ortho-methyl acetate.
Claim 11
Dependent Claim
29 words
A catalyst system for the polymerization of olefins comprising (A) the titanium containing supported catalyst component of claim 1, and (B) an organometallic compound of Group I through III.
Claim 12
Dependent Claim
29 words
A catalyst system for the polymerization of olefins comprising (A) the titanium containing supported catalyst component of claim 9, and (B) an organometallic compound of Group I through III.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-03-02 | 1990-09-01 | 1991-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-02 | 1994-09-01 | 1995-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-02 | 1998-09-01 | 1999-03-03 | $7700.00 | Window Closed / Lapsed |