US2666756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New catalytic process for the polymerization of ethylene
Assignee: Monsanto Chemicals Ltd
•
Filing: 1950-03-24
•
Granted: 1954-01-19
•
Expires: 1970-03-24
Abstract
No abstract record available.
Inventors
- 👤 Boyd Thomas
- 👤 Robert M Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:37
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; C; C08; C08F; C08F10/00; C08F10/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A PROCESS WHICH COMPRISES POLYMERIZING ETHYLENE IN THE SUBSTANTIAL ABSENCE OF OXYGEN IN THE PRESENCE OF A HYDROGENATION CATALYST, A PROMOTER, CARBON MONOXIDE AND HYDROGEN AT TEMPERATURES OF FROM 100*-400* C. AND PRESSURES OF FROM 50-6000 ATMOSPHERES, THE HYDROGENATION CATALYST BEING TAKEN FROM THE GROUP CONSISTING OF METALLIC NICKEL AND COBALT, THE PROMOTER BEING TAKEN FROM THE GROUP CONSISTING OF COPPER, SILVER, ZINC, IRON, MANGANESE, PLATINUM, PALLADIUM, RUTHENIUM, MAGNESIUM, CHROMIUM, ALUMINUM, THORIUM, CERIUM, AND THE OXIDES AND INORGANIC SALTS THEREOF, THE RATIO OF PROMOTER TO CATALYST BEING FROM 0.01 TO 10 PARTS OF PROMOTER PER 100 PARTS OF CATALYST, THE CARBON MONOXIDE BEING PRESENT IN AMOUNTS RANGING FROM 0.001 TO 0.2'' MOL PER MOL OF ETHYLENE AND THE HDROGEN BEING PRESENT IN THE RATIO OF FROM 1 TO 3 MOLS PER MOL OF CARBON MOMOXIDE.
Claim 2
Dependent Claim
135 words
A PROCESS WHICH COMPRISES POLYMERIZING ETHYLENE IN THE SUBSTANTIAL ABSENCE OF OXYGEN IN THE PRESENCE OF A HYDROGENATION CATALYST, A PROMOTER, CARBON MONOXIDE AND HYDROGEN AT TEMPERATURES OF FROM 100*-400* C. AND PRESSURES OF FROM 50-6000 ATMOSPHERES, THE HYDROGENATION CATALYST BEING TAKEN FROM THE GROUP CONSISTING OF METALLIC NICKEL AND COBALT, THE PROMOTER BEING TAKEN FROM THE GROUP CONSISTING OF COPPER, SILVER, ZINC, IRON, MANGANESE, PLATINUM, PALLADIUM, RUTHENIUM, MAGNESIUM, CHROMIUM, ALUMINUM, THORIUM, CERIUM, AND THE OXIDES AND INORGANIC SALTS THEREOF, THE RATIO OF PROMOTER TO CATALYST BEING FROM 0.01 TO 10 PARTS OF PROMOTER PER 100 PARTS OF CATALYST, THE CARBON MONOXIDE BEING PRESENT IN AMOUNTS RANGING FROM 0.001 TO 0.2'' MOL PER MOL OF ETHYLENE AND THE HDROGEN BEING PRESENT IN THE RATIO OF FROM 1 TO 3 MOLS PER MOL OF CARBON MOMOXIDE.
References Cited (Backward Citations)
US2495292A
Cited
US2595096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |