US2632014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing high molecular weight hydrocarbons
Assignee: EIDP Inc
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Filing: 1951-11-03
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Granted: 1953-03-17
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Expires: 1971-11-03
Abstract
No abstract record available.
Inventors
- 👤 William F Gresham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:50
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR PREPARING POLYMETHYLENES WHICH COMPRISES INTRODUCING INTO A REACTION VESSEL A MIXTURE OF CARBON MONOXIDE, HYDROGEN, WATER AND AN ACIDIC REAGENT CAPABLE OF MAINTAINING THE PH OF THE MIXTURE BELOW 1, THE MOL RATIO OF CARBON MONOXIDE TO HYDROGEN BEING OF FROM 2:1 TO 12,5:1, HEATING THE SAID MIXTURE IN THE PRESENCE OF A RUTHENIUM-CONTAINING SUBSTANCE AT A TEMPERATURE WITHIN THE RANGE OF TO 225* C. UNDER A PRESSURE WITHIN THE RANGE OF 200 TO 800 ATMOSPHERES, WHEREBY A REACTION OCCURS RESULTING N THE FORMATION OF SOLID POLYMETHYLENES, AND THEREAFTER SEPARATING THE SAID POLYMETHYLENES FROM THE RESULTING MIXTURE.
Claim 2
Dependent Claim
100 words
A PROCESS FOR PREPARING POLYMETHYLENES WHICH COMPRISES INTRODUCING INTO A REACTION VESSEL A MIXTURE OF CARBON MONOXIDE, HYDROGEN, WATER AND AN ACIDIC REAGENT CAPABLE OF MAINTAINING THE PH OF THE MIXTURE BELOW 1, THE MOL RATIO OF CARBON MONOXIDE TO HYDROGEN BEING OF FROM 2:1 TO 12,5:1, HEATING THE SAID MIXTURE IN THE PRESENCE OF A RUTHENIUM-CONTAINING SUBSTANCE AT A TEMPERATURE WITHIN THE RANGE OF TO 225* C. UNDER A PRESSURE WITHIN THE RANGE OF 200 TO 800 ATMOSPHERES, WHEREBY A REACTION OCCURS RESULTING N THE FORMATION OF SOLID POLYMETHYLENES, AND THEREAFTER SEPARATING THE SAID POLYMETHYLENES FROM THE RESULTING MIXTURE.
References Cited (Backward Citations)
US2352328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |