Patent US3061814A successfully refreshed from Google Patents.
Patent US2923702A successfully refreshed from Google Patents.
US2923702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and catalyst for production of olefin polymers
Assignee: Phillips Petroleum Co
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Filing: 1955-05-09
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Granted: 1960-02-02
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Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Harold D Lyons
- 👤 Nowlin Gene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:09
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A METHOD OF POLYMERIZING AN ALIPHATIC 1-OLEFIN HAVING UP TO AND INCLUDING 8 CARBOB ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID OLEFIN WITH A CATALYST COMPRISING A MOLYBEDENUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXYHYDROXYHALIDES OF MOLYBDENUM AND A MOLYBDENUM COMPOUND HAVING THE FORMULA MMOX, WHEREIN M IS AN ALKALI METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM LITHIUM RUBIDIUM, AND CESIUM, AND X IS A HALOGEN, AND AN ORGANOMETAL HALIDE CORRESPONDING TO THE FORMULA RXAIXY, WHEREIN R IS AN ALKYL RADICAL, X IS A HALOGEN, AND X AND Y ARE INTERGERS, THE SUM OF X AND Y BEING EQUAL TO THE VALENCE OF ALUMINUM.
Claim 2
Independent Claim
107 words
A METHOD OF POLYMERIZING AN ALIPHATIC 1-OLEFIN HAVING UP TO AND INCLUDING 8 CARBOB ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID OLEFIN WITH A CATALYST COMPRISING A MOLYBEDENUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXYHYDROXYHALIDES OF MOLYBDENUM AND A MOLYBDENUM COMPOUND HAVING THE FORMULA MMOX, WHEREIN M IS AN ALKALI METAL SELECTED FROM THE GROUP CONSISTING OF SODIUM, POTASSIUM LITHIUM RUBIDIUM, AND CESIUM, AND X IS A HALOGEN, AND AN ORGANOMETAL HALIDE CORRESPONDING TO THE FORMULA RXAIXY, WHEREIN R IS AN ALKYL RADICAL, X IS A HALOGEN, AND X AND Y ARE INTERGERS, THE SUM OF X AND Y BEING EQUAL TO THE VALENCE OF ALUMINUM.
References Cited (Backward Citations)
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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) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |