Patent US2913446A successfully refreshed from Google Patents.
US2913446A
Expired / Lapsed
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Polymerization process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1956-02-21
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Granted: 1959-11-17
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Expires: 1976-02-21
Abstract
No abstract record available.
Inventors
- 👤 Cull Neville Leverne
- 👤 Mertzweiller Joseph Kern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:32
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
THE PROCESS OF POLYMERIZING ALPHA OLEFIN COMPOUNDS WHICH COMPRISES CONTACTING SAID ALPHA OLEFIN WITH A CATALYST COMPLEX IN THE PRESENCE OF AN INERT REACTION DILUENT COMPRISING A MAJOR PROPORTION OF A PARAFFINIC HYDROCARBON HAVING FROM 5 TO 20 CARBON ATOMS AND FROM 1 TO 30% OF A COMPLETELY FLUORINATED POLAR COMPOUND CONTAINING A SATURATED RING GROUP AT A TEMPERATURE IN THE RANGE OF 20* TO 100* C. AND AT A PRESSURE OF FROM 1 TO 10 ATMOSPHERES, SAID CATALYST COMPLEX COMPRISING A COMPOUND OF A REDUCIBLE METAL OF GROUP IVB OF THE PERIODIC TABLE AND AN ALKYL ALUMINUM COMPOUND REDUCING AGENT, THE MOLAR RATIO OF THE REDUCING AGENT TO THE COMPOUND OF A REDUCIBLE METAL BEING IN THE RANGE OF FROM 1:1 TO 12:1.
Claim 2
Dependent Claim
124 words
THE PROCESS OF POLYMERIZING ALPHA OLEFIN COMPOUNDS WHICH COMPRISES CONTACTING SAID ALPHA OLEFIN WITH A CATALYST COMPLEX IN THE PRESENCE OF AN INERT REACTION DILUENT COMPRISING A MAJOR PROPORTION OF A PARAFFINIC HYDROCARBON HAVING FROM 5 TO 20 CARBON ATOMS AND FROM 1 TO 30% OF A COMPLETELY FLUORINATED POLAR COMPOUND CONTAINING A SATURATED RING GROUP AT A TEMPERATURE IN THE RANGE OF 20* TO 100* C. AND AT A PRESSURE OF FROM 1 TO 10 ATMOSPHERES, SAID CATALYST COMPLEX COMPRISING A COMPOUND OF A REDUCIBLE METAL OF GROUP IVB OF THE PERIODIC TABLE AND AN ALKYL ALUMINUM COMPOUND REDUCING AGENT, THE MOLAR RATIO OF THE REDUCING AGENT TO THE COMPOUND OF A REDUCIBLE METAL BEING IN THE RANGE OF FROM 1:1 TO 12:1.
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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) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |