US3088942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monosubstituted aluminum dihalide catalysts for olefin polymerization
Assignee: Eastman Kodak Co
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Filing: 1958-03-31
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Granted: 1963-05-07
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Expires: 1978-03-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry W Coover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:58
CPC Classifications
C; C08; C08F; C08F12/00; C08F12/02; C08F12/04; C08F12/06; C08F12/08; C08F110/00; C08F110/04; C08F110/06; C08F110/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN THE POLYMERIZATION OF A-MONOOLEFINIC HYDROCARBON CONTAINING 3 TO 10 CARBON ATOMS TO FORM SOLID, CRYSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A CATALYST MIXTURE CONSISTONG ESSENTIALLY OF AN ALUMINUM DIHALIDE HAVING THE FORMULA R1ALX12 WHEREIN R1 IS A HYDROCARBON RADICAL CONTAINING 1 TO 12 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ARALKYL AND THE HALOGEN ATOMS BEING SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, AN ALKOXIDE OF A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, VANADIUM, CHROMIUM AND MOLYBDENUM AND AN ORGANOPHOSPHORUS COMPOUND SELECTED FROM THE GROUP CONSISTING OF TRI-LOWER ALKYL PHOSPHITES, TRI-LOWER ALKYL PHOSPHATES AND HEXA-LOWER ALKYL PHOSPHORAMIDES, THE MOLAR RATIO OF ALUMINUM DIHALIDE TO ORGANOPHOSPHORUS COMPOUND BEING WITHIN THE RANGE OF 1:1 TO 1:0.25.
Claim 2
Dependent Claim
131 words
IN THE POLYMERIZATION OF A-MONOOLEFINIC HYDROCARBON CONTAINING 3 TO 10 CARBON ATOMS TO FORM SOLID, CRYSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A CATALYST MIXTURE CONSISTONG ESSENTIALLY OF AN ALUMINUM DIHALIDE HAVING THE FORMULA R1ALX12 WHEREIN R1 IS A HYDROCARBON RADICAL CONTAINING 1 TO 12 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ARALKYL AND THE HALOGEN ATOMS BEING SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, AN ALKOXIDE OF A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, VANADIUM, CHROMIUM AND MOLYBDENUM AND AN ORGANOPHOSPHORUS COMPOUND SELECTED FROM THE GROUP CONSISTING OF TRI-LOWER ALKYL PHOSPHITES, TRI-LOWER ALKYL PHOSPHATES AND HEXA-LOWER ALKYL PHOSPHORAMIDES, THE MOLAR RATIO OF ALUMINUM DIHALIDE TO ORGANOPHOSPHORUS COMPOUND BEING WITHIN THE RANGE OF 1:1 TO 1:0.25.
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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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |