US4607019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization catalyst, production and use
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1984-12-12
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Granted: 1986-08-19
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Expires: 2004-12-12
Abstract
Abstract A vanadium containing catalyst component useful for polymerizing olefins to polyolefins having a high molecular weight and broad molecular weight distribution comprising polymerizing the olefins in the presence of a catalyst comprising (a) a vanadium containing catalyst component obtained by contacting an inert support material with an organoaluminum compound, a halogenating agent and a vanadium compound, and (b) an aluminum alkyl cocatalyst.
Inventors
- 👤 Steven A. Best
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:42
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
65 words
A vanadium containing catalyst component obtained by treating an inert solid support material in an inert solvent with (i) an organoaluminum compound represented by the formula R m AlX 3-m , wherein R represents an alkyl group, cycloalkyl group or aryl group, X represents a halogen atom and m represents a number within the range of 1≦m≦3, (ii) a halogenating agent, (iii) a vanadium compound.
Claim 2
Dependent Claim
65 words
A vanadium containing catalyst component obtained by treating an inert solid support material in an inert solvent with (i) an organoaluminum compound represented by the formula R m AlX 3-m , wherein R represents an alkyl group, cycloalkyl group or aryl group, X represents a halogen atom and m represents a number within the range of 1≦m≦3, (ii) a halogenating agent, (iii) a vanadium compound.
Claim 3
Dependent Claim
77 words
The vanadium containing catalyst component of claim 1 wherein the vanadium compound is represented by the general formulas: ##STR4## where x=0-3 and R=a hydrocarbon radical; VCl.sub.y (OR).sub.4-y, (2) where y=3-4 and R=a hydrocarbon radical; ##STR5## where z=2-3 and (AcAc)=acetyl acetonate group; ##STR6## where (AcAc)=acetyl acetonate group; and VCl.sub.3 •nB, (5) where n=2-3 and B is a Lewis base which can form hydrocarbon-soluble complexes with VCl 3 , and the halogenating agent is selected from strong halogenating agents.
Claim 4
Dependent Claim
27 words
The vanadium containing catalyst component of claim 2 wherein the halogenating agents are selected from silicon halides and hydrocarbyl halides having from 1 to 3 carbon atoms.
Claim 5
Dependent Claim
23 words
The vanadium containing catalyst component of claim 1 wherein the inert solid support material is an inorganic oxide or mixtures of inorganic oxides.
Claim 6
Dependent Claim
14 words
The vanadium containing catalyst component of claim 4 wherein the inorganic oxide is silica.
Claim 7
Dependent Claim
23 words
The vanadium containing catalyst component of claim 2 wherein the vanadium compounds is selected from vanadyl trichloride, vanadium tetrachloride and vanadyl chloride dibutoxy.
Claim 8
Dependent Claim
20 words
The vanadium containing catalyst component of claim 2 wherein the halogenating agents are selected from silicon tetrachloride, 1,1,1-trichloroethane and trichlorofluoromethane.
Claim 9
Dependent Claim
20 words
The vanadium containing catalyst component of claim 1 wherein the organoaluminum compound is selected from trimethylaluminum, triethylaluminum, triisobutylaluminum and tri-n-octylaluminum.
Claim 10
Dependent Claim
25 words
The vanadium containing catalyst component of claim 1 wherein the silica is contacted sequentially with the organoaluminum compound, the halogenating agent, and the vanadium compound.
Claim 11
Dependent Claim
27 words
The vanadium containing catalyst component of claim 1 wherein the inert support material is contacted sequentially with the vanadium compound, the aluminum compound and the halogenating agent.
Claim 12
Dependent Claim
22 words
A catalyst system for the polymerization of olefins comprising (a) an organoaluminum cocatalyst, (b) the vanadium containing catalyst component of claim 1.
Claim 13
Dependent Claim
22 words
A catalyst system for the polymerization of olefins comprising (a) an organoaluminum cocatalyst, (b) the vanadium containing catalyst component of claim 2.
Claim 14
Dependent Claim
22 words
A catalyst system for the polymerization of olefins comprising (a) an organoaluminum cocatalyst, (b) the vanadium containing catalyst component of claim 3.
Claim 15
Dependent Claim
22 words
A catalyst system for the polymerization of olefins comprising (a) an organoaluminum cocatalyst, (b) the vanadium containing catalyst component of claim 4.
Claim 16
Dependent Claim
22 words
A catalyst system for the polymerization of olefins comprising (a) an organoaluminum cocatalyst, (b) the vanadium containing catalyst component of claim 5.
Claim 17
Dependent Claim
22 words
A catalyst system for the polymerization of olefins comprising (a) an organoaluminum cocatalyst, (b) the vanadium containing catalyst component of claim 6.
Claim 18
Dependent Claim
22 words
A catalyst system for the polymerization of olefins comprising (a) an organoaluminum cocatalyst, (b) the vanadium containing catalyst component of claim 7.
Claim 19
Dependent Claim
22 words
A catalyst system for the polymerization of olefins comprising (a) an organoaluminum cocatalyst, (b) the vanadium containing catalyst component of claim 8.
Claim 20
Dependent Claim
22 words
A catalyst system for the polymerization of olefins comprising (a) an organoaluminum cocatalyst, (b) the vanadium containing catalyst component of claim 9.
Claim 21
Dependent Claim
22 words
A catalyst system for the polymerization of olefins comprising (a) an organoaluminum cocatalyst, (b) the vanadium containing catalyst component of claim 10.
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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) | 1989-08-18 | 1990-02-17 | 1990-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-18 | 1994-02-17 | 1994-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-18 | 1998-02-17 | 1998-08-19 | $7700.00 | Window Closed / Lapsed |