Patent US4199475A successfully refreshed from Google Patents.
US4199475A
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Catalyst for producing polymers of ethylene
Assignee: Phillips Petroleum Co
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Filing: 1978-09-22
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Granted: 1980-04-22
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Expires: 1998-09-22
Abstract
Abstract A catalyst for producing polymers of ethylene in which a first composition prepared by reacting an inorganic support containing surface hydroxyl groups with titanium or vanadium compounds which also comprise halogen and/or OR groups wherein R is hydrocarbyl is further reacted to form a second composition by subsequent contact with a compound of titanium or vanadium as defined above chosen from compounds of the metal not reacted to form the first composition, producing a third composition by reaction of the second composition with an organoaluminum compound with the third composition being reacted with titanium tetrahalide to form the catalyst composite. A method for producing polymers of ethylene by contacting ethylene monomer in the presence of the catalyst composite described above and an organoaluminum compound under conditions suitable for polymerization.
Inventors
- 👤 M. Bruce Welch
- 👤 Darryl R. Fahey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:11
CPC Classifications
C; C08; C08F; C08F10/00; C08F10/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
164 words
A method for preparing a catalytic composite comprising: (a) reacting an inorganic support containing surface hydroxyl groups with a compound chosen from among (1) compounds of the formula Ti(OR) n X 4-n , (2) VX 4 , and (3) VO(OR') m X 3-m wherein R is selected from among alkyl, cycloalkyl, aryl, acyl and combinations thereof with each group containing from 1 to about 20 carbon atoms, R' is an alkyl group containing from 1 to about 20 carbon atoms, m is 0 to 3, n is 0 to 4, and X is bromide, chloride, or iodide, to form a first composition; and thereafter (b) reacting said first composition with a compound of titanium or vanadium as defined above chosen from compounds of the metal not reacted in step (a) to form a second composition; thereafter (c) reacting said second composition with an organoaluminum compound to form a third composition; and (d) reacting said third composition with titanium tetrahalide to form the catalyst composite.
Claim 2
Independent Claim
164 words
A method for preparing a catalytic composite comprising: (a) reacting an inorganic support containing surface hydroxyl groups with a compound chosen from among (1) compounds of the formula Ti(OR) n X 4-n , (2) VX 4 , and (3) VO(OR') m X 3-m wherein R is selected from among alkyl, cycloalkyl, aryl, acyl and combinations thereof with each group containing from 1 to about 20 carbon atoms, R' is an alkyl group containing from 1 to about 20 carbon atoms, m is 0 to 3, n is 0 to 4, and X is bromide, chloride, or iodide, to form a first composition; and thereafter (b) reacting said first composition with a compound of titanium or vanadium as defined above chosen from compounds of the metal not reacted in step (a) to form a second composition; thereafter (c) reacting said second composition with an organoaluminum compound to form a third composition; and (d) reacting said third composition with titanium tetrahalide to form the catalyst composite.
Claim 3
Dependent Claim
25 words
A method of claim 1 wherein said inorganic supports are chosen from silica, alumina, thoria, titania, zirconia, combinations thereof and magnesium compounds containing hydroxyl groups.
Claim 4
Dependent Claim
38 words
A method of claim 1 wherein the titanium compounds are chosen from among titanium tetracetate, titanium tetramethoxide, titanium tetrabenzyloxide, titanium trimethoxidebutoxide, titanium ethoxytrichloride, titanium dibutoxidedioctadecyloxide, titanium diisopropoxydibromide, titanium phenoxytrichloride, titanium tri-o-xylenyloxychloride, titanium tetrabromide, titanium tetrachloride and titanium tetraiodide.
Claim 5
Dependent Claim
34 words
A method of claim 1 wherein the vanadium compounds are chosen from among vanadium tetrachloride, trimethyl vanadate, triethyl vanadate, tridodecyl vanadate, trieicosyl vanadate, diethoxy vanadium chloride, n-butoxy vanadium dibromide, vanadium oxytribromide and vanadium oxytrichloride.
Claim 6
Dependent Claim
22 words
A method of claim 1 wherein the organometallic compounds are chosen from among alkylaluminum alkoxides, dialkylaluminum halides, alkylaluminum dihalides, and mixtures thereof.
Claim 7
Dependent Claim
9 words
A composition made by the method of claim 1.
Claim 8
Dependent Claim
15 words
A od of claim 1 wherein said titanium tetrahalide of (d) is TiCl 4 .
Claim 9
Dependent Claim
142 words
A composition consisting essentially of the reaction product of (1) a vanadium compound of the formula VX 4 or VO(OR') m X 3-m in which R' is an alkyl group containing from 1 to about 20 carbon atoms, m is 0 to 3, and X is bromide, chloride, or iodide and (2) a composition comprising the reaction product of an inorganic support containing surface hydroxyl groups with a titanium compound of the formula Ti(OR) n X 4-n in which R is selected from among alkyl, cycloalkyl, aryl, acyl and combinations thereof with each group containing from 1 to about 20 carbon atoms, n is 0 to 4, and X is bromide, chloride, or iodide, said reaction product sequentially reacted with (3) at least one organometallic compound of a metal of Groups I-III of the Periodic Table of Elements and (4) titanium tetrahalide.
Claim 10
Dependent Claim
142 words
A composition consisting essentially of the reaction product of (1) a vanadium compound of the formula VX 4 or VO(OR') m X 3-m in which R' is an alkyl group containing from 1 to about 20 carbon atoms, m is 0 to 3, and X is bromide, chloride, or iodide and (2) a composition comprising the reaction product of an inorganic support containing surface hydroxyl groups with a titanium compound of the formula Ti(OR) n X 4-n in which R is selected from among alkyl, cycloalkyl, aryl, acyl and combinations thereof with each group containing from 1 to about 20 carbon atoms, n is 0 to 4, and X is bromide, chloride, or iodide, said reaction product sequentially reacted with (3) at least one organometallic compound of a metal of Groups I-III of the Periodic Table of Elements and (4) titanium tetrahalide.
Claim 11
Dependent Claim
141 words
A composition consisting essentially of the reaction product of (1) a titanium compound of the formula Ti(OR) n X 4-n in which R is selected from alkyl, cycloalkyl, aryl, acyl and combinations thereof with each group containing from 1 to about 20 carbon atoms, n is 0 to 4 and X is bromide, chloride or iodide, and (2) a composition comprising the reaction product of an inorganic support containing surface hydroxyl groups with a vanadium compound of the formula VX 4 or VO(OR') m X 3-m in which R' is an alkyl group containing from 1 to about 20 carbon atoms, m is 0 to 3, and X is bromide, chloride, or iodide said reaction product sequentially reacted with (3) at least one organometallic compound of a metal of Groups I-III of the Periodic Table of Elements and (4) titanium tetrahalide.
Claim 12
Dependent Claim
141 words
A composition consisting essentially of the reaction product of (1) a titanium compound of the formula Ti(OR) n X 4-n in which R is selected from alkyl, cycloalkyl, aryl, acyl and combinations thereof with each group containing from 1 to about 20 carbon atoms, n is 0 to 4 and X is bromide, chloride or iodide, and (2) a composition comprising the reaction product of an inorganic support containing surface hydroxyl groups with a vanadium compound of the formula VX 4 or VO(OR') m X 3-m in which R' is an alkyl group containing from 1 to about 20 carbon atoms, m is 0 to 3, and X is bromide, chloride, or iodide said reaction product sequentially reacted with (3) at least one organometallic compound of a metal of Groups I-III of the Periodic Table of Elements and (4) titanium tetrahalide.
Claim 13
Dependent Claim
15 words
A composition of claim 8 wherein said titanium tetrahalide of (4) is TiCl 4 .
Claim 14
Dependent Claim
15 words
A composition of claim 9 wherein said titanium tetrahalide of (4) is TiCl 4 .
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1983-04-22 | 1983-10-22 | 1984-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-22 | 1987-10-22 | 1988-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-22 | 1991-10-22 | 1992-04-22 | $7700.00 | Window Closed / Lapsed |