US2992180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovering polymer oil from spent clay
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1960-02-19
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Granted: 1961-07-11
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Expires: 1980-02-19
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Schatz
- 👤 Lewis D Etherington
- 👤 Daniel S Maisel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:20
CPC Classifications
B; B01; B01D; B01D41/00; B01D41/02; B01J; B01J23/00; B01J23/90; B01J23/92; C; C08; C08C; C08C2/00; C08C2/02; C08C2/04; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/945
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A CONTINOUS PROCESS FOR PRODUCTING A DRYING OIL WHICH COMPRISES CHARGING A MIXTURE OF 60 TO 100 PARTS OF A CONJUGATED DIOLEFIN OF 4-6 CARBON ATOMS AND 0 TO 40 PARTS OF A VINYL AROMATIC HYRODARBON, 50 TO 500 PARTS OF A HYDROCARBON DILUENT BOILING BETWEEN -15* AND 200*C., 10 TO 40 PARTS OF AN ETHER CHOSEN FROM THE GROUP CONSISTING OF CYCLIC ETHERS AND ALIPHATIC ETHERS, 0.5 10 PARTS OF FINELY DIVIDED ALKALI METAL AND 1 TO 35% OF AN ALIPHATIC ALCOHOL, BASED ON THE WEIGHT OF ALKALI METAL, TO A POLYMERIZATION ZONE, HEATING THE MIXTURE TO A REACTION TEMPERATURE BETWEEN 25* AND 105*C., CONTINOUSLY WITHDRAWING LIQUID POLYMERIZATION PRODUCT AND PASSING IT THROUGH A CONTACTING ZONE CONTAINING AN
Claim 2
Dependent Claim
119 words
A CONTINOUS PROCESS FOR PRODUCTING A DRYING OIL WHICH COMPRISES CHARGING A MIXTURE OF 60 TO 100 PARTS OF A CONJUGATED DIOLEFIN OF 4-6 CARBON ATOMS AND 0 TO 40 PARTS OF A VINYL AROMATIC HYRODARBON, 50 TO 500 PARTS OF A HYDROCARBON DILUENT BOILING BETWEEN -15* AND 200*C., 10 TO 40 PARTS OF AN ETHER CHOSEN FROM THE GROUP CONSISTING OF CYCLIC ETHERS AND ALIPHATIC ETHERS, 0.5 10 PARTS OF FINELY DIVIDED ALKALI METAL AND 1 TO 35% OF AN ALIPHATIC ALCOHOL, BASED ON THE WEIGHT OF ALKALI METAL, TO A POLYMERIZATION ZONE, HEATING THE MIXTURE TO A REACTION TEMPERATURE BETWEEN 25* AND 105*C., CONTINOUSLY WITHDRAWING LIQUID POLYMERIZATION PRODUCT AND PASSING IT THROUGH A CONTACTING ZONE CONTAINING AN
References Cited (Backward Citations)
US2769751A
Cited
US2862982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |