US2996492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery process for high molecular weight polymers
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1957-10-01
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Granted: 1961-08-15
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Expires: 1977-10-01
Abstract
No abstract record available.
Inventors
- 👤 Bruce R Tegge
- 👤 John F Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:38
CPC Classifications
C; C08; C08F; C08F6/00; C08F6/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
THE PROCESS FOR TREATING A REACTOR EFFLUENT HAVING AS DILUENT A LOW BOILING HYDROCARBON OF BOILING POINT NOT ABOVE 150*F. AND CONTAINING A HIGH MOLECULAR WEIGHT POLYOLEFIN TO CONTROL THE QUANTITY OF AMORPHOUS POLYOLEFIN IN THE FINAL POLYOLEFIN PRODUCT COMPRISING TREATING THE REACTOR EFFLUENT WITH AN AT LEAST PARTIALLY VAPORIZED C4 ALCOHOL AT A TEMPERATURE SUFFICIENT TO FLASH OFF A SUBSTANTIAL PORTION OF SAID LOW BOILING HYDROCARBON, THE AMOUNT OF ALCOHOL INTRODUCED AND THE AMOUNT OF HYDROCARBON FLASHED OFF BEING CONTROLLED RESPONSIVE TO THE QUANTITY OF AMORPHOUS POLYMER DESIRED IN THE FINAL POLYOLEFIN PRODUCT, SAID ALCOHOL HAVING A BOILING POINT AT LEAST 90*F. HIGHER THAN THE BOILING POINT OF SAID LOW BOILING HYDROCARBON.
Claim 2
Dependent Claim
113 words
THE PROCESS FOR TREATING A REACTOR EFFLUENT HAVING AS DILUENT A LOW BOILING HYDROCARBON OF BOILING POINT NOT ABOVE 150*F. AND CONTAINING A HIGH MOLECULAR WEIGHT POLYOLEFIN TO CONTROL THE QUANTITY OF AMORPHOUS POLYOLEFIN IN THE FINAL POLYOLEFIN PRODUCT COMPRISING TREATING THE REACTOR EFFLUENT WITH AN AT LEAST PARTIALLY VAPORIZED C4 ALCOHOL AT A TEMPERATURE SUFFICIENT TO FLASH OFF A SUBSTANTIAL PORTION OF SAID LOW BOILING HYDROCARBON, THE AMOUNT OF ALCOHOL INTRODUCED AND THE AMOUNT OF HYDROCARBON FLASHED OFF BEING CONTROLLED RESPONSIVE TO THE QUANTITY OF AMORPHOUS POLYMER DESIRED IN THE FINAL POLYOLEFIN PRODUCT, SAID ALCOHOL HAVING A BOILING POINT AT LEAST 90*F. HIGHER THAN THE BOILING POINT OF SAID LOW BOILING HYDROCARBON.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |