US3186977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-component alkyl aluminum catalysts for olefin polymerization
Assignee: Eastman Kodak Co
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Filing: 1961-03-01
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Granted: 1965-06-01
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Expires: 1981-03-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry W Coover
- 👤 Frederick B Joyner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:46
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN THE POLYMERIZATION OF A-OLEFINIC HYDROCARBONS CONTAINING 3 TO 10 CARBON ATOMS TO FORM SOLID, CRSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A CATALYTIC MIXTURE CONTAINING AN ALUMINUM COMPOUND HAVING THE FORMULA R3AL WHEREIN EACH R IS A HYDROCARBON RADICAL CONTAINING 1 TO 12 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ARALKYL, A TRIHALIDE OF A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND VANADIUM AND AN ORGANOPHOSPHORUS COMPOUND HAVING THE FORMULAS P(O)Y3 AND PY3 WHEREIN EACH Y IS SELECTED FROM THE GROUP CONSISTING OF ALKYLAMINO AND ALKOXY RADICALS, THE ALKYL AND ALKOXY RADICALS CONTAINING 1 TO 8 CARBON ATOMS, THE MOLAR RATIO OF TRANSITION METAL TRIHALIDE TO ORGANOPHOSPHORUS COMPOUND BEING WITHIN THE RANGE OF 1:1 TO 1:0.1.
Claim 2
Dependent Claim
128 words
IN THE POLYMERIZATION OF A-OLEFINIC HYDROCARBONS CONTAINING 3 TO 10 CARBON ATOMS TO FORM SOLID, CRSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A CATALYTIC MIXTURE CONTAINING AN ALUMINUM COMPOUND HAVING THE FORMULA R3AL WHEREIN EACH R IS A HYDROCARBON RADICAL CONTAINING 1 TO 12 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ARALKYL, A TRIHALIDE OF A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND VANADIUM AND AN ORGANOPHOSPHORUS COMPOUND HAVING THE FORMULAS P(O)Y3 AND PY3 WHEREIN EACH Y IS SELECTED FROM THE GROUP CONSISTING OF ALKYLAMINO AND ALKOXY RADICALS, THE ALKYL AND ALKOXY RADICALS CONTAINING 1 TO 8 CARBON ATOMS, THE MOLAR RATIO OF TRANSITION METAL TRIHALIDE TO ORGANOPHOSPHORUS COMPOUND BEING WITHIN THE RANGE OF 1:1 TO 1:0.1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |