US3222337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monosubstituted aluminum dihalide catalysts for olefin polymerization
Assignee: Eastman Kodak Co
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Filing: 1964-08-10
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Granted: 1965-12-07
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Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry W Coover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:26
CPC Classifications
C; C08; C08F; C08F110/00; C08F110/04; C08F110/06; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN THE POLYMERIZATION OF A-OLEFINIC HYDROCARBON MATERIAL TO FORM SOLID CRYSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A CATALYTIC MIXTURE OF AN ALUMINUM DIHALIDE HAVING THE FORMULA R1ALX2 WHEREIN R1 IS SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS CONTAINING FROM 1 TO 12 CARBON ATOMS, PHENYL AND BENZYL AND X IS A HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, ANALKOXIDE OF A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, VANADIUM, CHROMIUM AND MOLYBDENUM, AND A COMPOUND OF A GROUP VA ELEMENT HAVING THE FORMULA R3Z WHEREIN Z IS A GROUP VA ELEMENT SELECTED FROM THE GROUP CONSISTING OF ARSENIC AND ANTIMONY AND EACH R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND HYDROCARBON RADICALS CONTAINING 1-12 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ARALKYL.
Claim 2
Dependent Claim
143 words
IN THE POLYMERIZATION OF A-OLEFINIC HYDROCARBON MATERIAL TO FORM SOLID CRYSTALLINE POLYMER, THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A CATALYTIC MIXTURE OF AN ALUMINUM DIHALIDE HAVING THE FORMULA R1ALX2 WHEREIN R1 IS SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS CONTAINING FROM 1 TO 12 CARBON ATOMS, PHENYL AND BENZYL AND X IS A HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, ANALKOXIDE OF A TRANSITION METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, VANADIUM, CHROMIUM AND MOLYBDENUM, AND A COMPOUND OF A GROUP VA ELEMENT HAVING THE FORMULA R3Z WHEREIN Z IS A GROUP VA ELEMENT SELECTED FROM THE GROUP CONSISTING OF ARSENIC AND ANTIMONY AND EACH R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND HYDROCARBON RADICALS CONTAINING 1-12 CARBON ATOMS AND SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ARALKYL.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |