US2881233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of olefins in presence of nickel oxide-silica-alumina catalyst containing an alkaline material
Assignee: Phillips Petroleum Co
•
Filing: 1955-09-15
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Granted: 1959-04-07
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Expires: 1975-09-15
Abstract
No abstract record available.
Inventors
- 👤 Clark Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:03
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/10; C07C2521/00; C07C2521/12; C07C2523/00; C07C2523/02; C07C2523/04; C07C2523/70; C07C2523/74; C07C2523/755
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PROCESS FOR POLYMERIZING C2 TO C5 OLEFINS COMPRISING CONTACTING AT LEAST ONE OF SAID OLEFINS UNDER POLYMERIZING CONDITIONS WITH A CATALYST COMPRISING NICKEL OXIDE-SILICA-ALUMINA CONTAINING A MINOR BUT MODIFYING AMOUNT OF AT LEAST 0.5 WEIGHT PERCENT OF AT LEAST ONE ALKALINE COMPOUND OF THE GROUP CONSISTING OF ALKALI AND ALKALINE EARTH METAL COMPOUNDS CONVERTIBLE TO METAL OXIDE UPON HEATING SO AS TO PRODUCE POLYMER COMPRISING 1-OLEFIN.
Claim 2
Dependent Claim
67 words
A PROCESS FOR POLYMERIZING C2 TO C5 OLEFINS COMPRISING CONTACTING AT LEAST ONE OF SAID OLEFINS UNDER POLYMERIZING CONDITIONS WITH A CATALYST COMPRISING NICKEL OXIDE-SILICA-ALUMINA CONTAINING A MINOR BUT MODIFYING AMOUNT OF AT LEAST 0.5 WEIGHT PERCENT OF AT LEAST ONE ALKALINE COMPOUND OF THE GROUP CONSISTING OF ALKALI AND ALKALINE EARTH METAL COMPOUNDS CONVERTIBLE TO METAL OXIDE UPON HEATING SO AS TO PRODUCE POLYMER COMPRISING 1-OLEFIN.
References Cited (Backward Citations)
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US2706211A
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US2710854A
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US2767160A
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US2717888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |