Patent US3919964A successfully refreshed from Google Patents.
Patent US4447824A successfully refreshed from Google Patents.
Patent US4347157A successfully refreshed from Google Patents.
US4347157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalysts for the polymerization of olefins
Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1980-04-07
•
Granted: 1982-08-31
•
Expires: 2000-04-07
Abstract
Abstract Solid catalyst components produced by reacting an organomagnesium compound with an alkoxy compound of the formula, R1aAl(OR2)bXc wherein R1 and R2 are each a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen atom and a, b and c are numbers satisfying the equations at the same time, 0</=a<3, 0<b</=3, 0</=c<3, and a+b+c=3 and/or of the formula, R3dP(OR4)eXf wherein R3 and R4 are each a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen atom, and d, e and f are numbers satisfying the equations at the same time, 0</=d<3, 0<e</=3, 0</=f<3, and d+e+f=3 to produce a solid product, and allowing the solid product to support a titanium compound and/or a vanadium compound, and a method for producing polyolefins which comprises polymerizing olefin in the presence of a catalyst system comprising said solid catalyst component and an organoaluminum compound.
Inventors
- 👤 Yasuharu Yamada
- 👤 Kiyoshi Kawai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:14
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
129 words
A solid catalyst component for olefin polymerization prepared by a method consisting essentially of reacting an organomagnesium compound represented by the formula, R.sup.5 MgX or R.sup.6.sub.2 Mg wherein R 5 and R 6 are each alkyl, aryl, aralkyl or alkenyl group having 1 to 20 carbon atoms, and X is a chlorine, bromine or iodine atom, R.sup.1.sub.a A1(OR).sub.b X.sub.c with an alkoxy aluminum compound of the formula wherein R 1 and R 2 are each a hydrocarbon group having 1 to 20 carbon atom, X is a halogen atom and a,b, and c are numbers satisfying the equations at the same time, O≦a<3, O<b<3, O≦c<3, a+b+c=3 to produce a solid product which is a catalyst carrier, and supporting a titanium compound and/or a vanadium compound on said solid product.
Claim 2
Dependent Claim
129 words
A solid catalyst component for olefin polymerization prepared by a method consisting essentially of reacting an organomagnesium compound represented by the formula, R.sup.5 MgX or R.sup.6.sub.2 Mg wherein R 5 and R 6 are each alkyl, aryl, aralkyl or alkenyl group having 1 to 20 carbon atoms, and X is a chlorine, bromine or iodine atom, R.sup.1.sub.a A1(OR).sub.b X.sub.c with an alkoxy aluminum compound of the formula wherein R 1 and R 2 are each a hydrocarbon group having 1 to 20 carbon atom, X is a halogen atom and a,b, and c are numbers satisfying the equations at the same time, O≦a<3, O<b<3, O≦c<3, a+b+c=3 to produce a solid product which is a catalyst carrier, and supporting a titanium compound and/or a vanadium compound on said solid product.
Claim 3
Dependent Claim
27 words
A solid catalyst component according to claim 1, wherein said solid product is produced in the presence of an ether compound and isolated from the reaction mixture.
Claim 4
Dependent Claim
24 words
A solid catalyst component according to claim 2, wherein said solid product isolated from the reaction mixture is complexes having a coordinate ether compound.
Claim 5
Dependent Claim
24 words
A solid catalyst component according to claim 1, wherein the molar ratio of the organomagnesium compound to the alkoxy compound is 1:10 to 10:1.
Claim 6
Dependent Claim
24 words
A solid catalyst component according to claim 4, wherein the molar ratio of the organomagnesium compound to the alkoxy compound is 1:3 to 3:1.
Claim 7
Dependent Claim
28 words
A solid catalyst component according to claim 1, wherein the reaction between the organomagnesium compound and the alkoxy compound is carried out at -30° C. to 150° C.
Claim 8
Dependent Claim
27 words
A solid catalyst component according to claim 6, wherein the reaction between the organomagnesium compound and the alkoxy compound is carried out at -10° to 100° C.
Claim 9
Dependent Claim
31 words
A solid catalyst component according to claim 1, wherein the reaction is carried out in a solvent selected from the group consisting of aliphatic hydrocarbons, aromatic hydrocarbons, alicyclic hydrocarbons and ethers.
Claim 10
Dependent Claim
49 words
A solid catalyst component according to claim 2, 3 or 8, wherein the ether compound is one represented by the formula, R.sup.8 --O--R.sup.9 wherein R 8 and R 9 are each a hydrocarbon group having 1 to 20 carbon atoms, or may be linked together to form a ring.
Claim 11
Dependent Claim
50 words
A solid catalyst component according to claim 9, wherein the ether compound is a member selected from the group consisting of diethyl ether, di-n-propyl ether, diisopropyl ether, di-n-butyl ether, di-sec-butyl ether, di-n-amyl ether, di-isoamyl ether, di-n-hexyl ether, di-n-octyl ethyl, diphenyl ether, dibenzyl ether, anisole, phenetole, methyl benzyl ether and tetrahydrofuran.
Claim 12
Dependent Claim
17 words
A solid catalyst component according to claim 1, wherein said alkoxy aluminum compound, is an aluminum trialkoxide.
Claim 13
Dependent Claim
56 words
A solid catalyst component according to claim 1, wherein said titanium compound or vanadium compound is a titanium compound of the formula, Ti(OR.sup.7).sub.m X.sub.4-m wherein R 7 is a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen atom, and m is a number satisfying the equation, O≦M≦4, vanadium tetrachloride or vanadium oxytrichloride.
Claim 14
Dependent Claim
36 words
A solid catalyst component according to claim 12, wherein the titanium compound of the formula, Ti(OR 7 ) m X 4-m (in which R 7 , X and m are as defined above), is titanium tetrachloride.
Claim 15
Dependent Claim
23 words
A solid catalyst component according to claim 3, wherein the isolated solid product contains 0.1 to 100 wt% of said coordinated ether compound.
Claim 16
Dependent Claim
20 words
A solid catalyst component according to claim 14, wherein the amount of the coordinated ether is 0.5 to 50 wt%.
Claim 17
Dependent Claim
26 words
A solid catalyst component according to claim 1, wherein the content of titanium atom and/or vanadium atom in the solid catalyst component is 0.01 to 30wt%.
Claim 18
Dependent Claim
22 words
A solid catalyst component according to claim 16, wherein the content of titanium atom and/or vanadium atom is 0.1 to 15 wt%.
Claim 19
Dependent Claim
75 words
A catalyst system for olefin polymerization comprising (1) a solid catalyst component according to any one of claims 1-3, 4,5,6,7,8,9, 11 and 12,13,14,15,16,17 and (2) an organoaluminum compound of the formula, R.sup.10.sub.3-(p+q) A1)(OR.sup.11).sub.p Y.sub.q wherein R 10 and R 11 are each a hydrocarbon group having 1 to 20 carbon atoms, Y is a hydrogen or halogen atom, and p and q are numbers satisfying the equations at the same time, O≦p<3, O≦q<3 and O≦p+q<3.
Claim 20
Dependent Claim
69 words
A catalyst system for olefin polymerization comprising (1) a solid catalyst component according to claim 10 and (2) an organoaluminum compound of the formula, R.sup.10.sub.3-(p+q) A1(OR.sup.11).sub.p X .sub.q wherein R 10 and R 11 are each a hydrocarbon group having 1 to 20 carbon atoms, Y is a hydrogen or halogen atom, and p and q are numbers satisfying the equations at the same time, O≦p<3, O≦q<3, and O≦p+q<3.
References Cited (Backward Citations)
GB1401708A
Cited
US4202953A
Cited
GB1539175A
Cited
US4107416A
Cited
US4223117A
Cited
GB1542224A
Cited
GB1542820A
Cited
US4159965A
Cited
US4223118A
Cited
GB2016020A
Cited
GB2020672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-08-30 | 1986-03-01 | 1986-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-30 | 1990-03-01 | 1990-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-30 | 1994-03-01 | 1994-08-31 | $7700.00 | Window Closed / Lapsed |