US2767160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel oxide on carbon-alkaline earth hydride catalyst in ethylene polymerization
Assignee: Standard Oil Co
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Filing: 1953-06-29
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Granted: 1956-10-16
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Expires: 1973-06-29
Abstract
No abstract record available.
Inventors
- 👤 Field Edmund
- 👤 Feller Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:13
CPC Classifications
C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/946
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR THE PREPARATION OF AN ETHYLENE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 300, WHICH PROCESS COMPRISES CONTACTING ETHYLENE WITH AN ALKALINE EARTH METAL HYDRIDE AND A CATALYST COMPRISING ESSENTIALLY A MINOR PROPORTION OF A MATERIAL SELECTED FROM THE CLASS CONSISTING OF NICKEL AND NICKEL OXIDE SUPPORTED UPON A MAJOR PROPORTION OF AN ACTIVE CARBON AT A TEMPERATURE BETWEEN ABOUT 20* C. AND ABOUT 250* C., AND SEPARATING AN ETHYLENE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 300 THUS PRODUCED.
Claim 2
Dependent Claim
86 words
A PROCESS FOR THE PREPARATION OF AN ETHYLENE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 300, WHICH PROCESS COMPRISES CONTACTING ETHYLENE WITH AN ALKALINE EARTH METAL HYDRIDE AND A CATALYST COMPRISING ESSENTIALLY A MINOR PROPORTION OF A MATERIAL SELECTED FROM THE CLASS CONSISTING OF NICKEL AND NICKEL OXIDE SUPPORTED UPON A MAJOR PROPORTION OF AN ACTIVE CARBON AT A TEMPERATURE BETWEEN ABOUT 20* C. AND ABOUT 250* C., AND SEPARATING AN ETHYLENE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 300 THUS PRODUCED.
References Cited (Backward Citations)
US2460303A
Cited
US2658059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |