US2920066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and catalyst for production of olefin polymers
Assignee: Phillips Petroleum Co
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Filing: 1955-04-25
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Granted: 1960-01-05
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Expires: 1975-04-25
Abstract
No abstract record available.
Inventors
- 👤 Nowlin Gene
- 👤 Harold D Lyons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:56
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
A METHOD FOR POLYMERIZINING AN ALIPHATIC 1-OLEFIN HAVING UP TO AND INCLUDING 8 CARBON ATOMS PER MOLECULE WHICH COMPRISES CONTACTING SAID OLEFIN WITH A CATALYST COMPRISING TITANUIM HYDRIDE AND AN ALKLY ALUMINUIM HALIDE, THE RATIO OF THE AMOUNTS OF SAID ALKYL ALUMINUM HALIDE PER MOL OF SAID TITANUIM HYDRIDE, SAID CONIN THE RANGE OF FROM 0.05 TO 50 MOLS OF SAID ALKYL ALUMINUM HALIDE PER MOL OF SAID TITANUIM HYDRIDE, SAID CONTACTING OCCURING AT A TEMPERATURE IN THE RANGE OF 100 TO 500* F., IN THE PRESENCE OF A HYDROCARBON DILUENT, INERT AND LIQUID UNDER CONDITIONS OF A METHOD, AND AT A PRESSURE SUFFICIENT TO MAINTAIN SAID DILUENT IN THE LIQUID PHASE.
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) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |