Patent US2823216A successfully refreshed from Google Patents.
US2823216A
Expired / Lapsed
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Process for preparation of carboxylic acids
Assignee: Pan American Petroleum Corp
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Filing: 1955-12-08
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Granted: 1958-02-11
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Expires: 1975-12-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Truman P Moote
- 👤 Jr Alfred Steitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:48
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/347; C07C51/353
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A PROCESS FOR THE PREPARATION OF ORGANIC ACIDS FROM A PRIMARY OLEFIN AND AN ALIPHATIC CARBOXYLIC ACID, THE IMPROVEMENT WHICH COMPRISES PRODUCING AT LEAST ABOUT 70 MOEL PERCENT OF A CARBOXYLIC ACID PRODUCT IN WHICH THE MOLAR RATIO OF OLEFIN TO THE REACTING ACIDS 1:1 BY REACTING IN THE LIQUID PHASE A PRIMARY OLEFIN HAVING FROM 5 TO 18 CARBON ATOMS WITH AN ALIPHATIC CARBOXYLIC ACID UNDER FREE RADICAL FORMING CONDITIONS, SAID ACID AND OLEFIN BEING PRESENT IN THE REACTION MIXTURE IN A MOLAR RATIO OF AT LEAST ABOUT 10:1 AND AT A TEMPERATURE RANGING FROM ABOUT 15* TO ABOUT 25*C. BELOW THE BOILING POINT OF THE OLEFIN UP TO ABOUT THE REFLUX TEMPERATURE OF SAID REACTION MIXTURE AT ABOUT ATMOSPHERIC PRESSURE.
Claim 2
Dependent Claim
123 words
IN A PROCESS FOR THE PREPARATION OF ORGANIC ACIDS FROM A PRIMARY OLEFIN AND AN ALIPHATIC CARBOXYLIC ACID, THE IMPROVEMENT WHICH COMPRISES PRODUCING AT LEAST ABOUT 70 MOEL PERCENT OF A CARBOXYLIC ACID PRODUCT IN WHICH THE MOLAR RATIO OF OLEFIN TO THE REACTING ACIDS 1:1 BY REACTING IN THE LIQUID PHASE A PRIMARY OLEFIN HAVING FROM 5 TO 18 CARBON ATOMS WITH AN ALIPHATIC CARBOXYLIC ACID UNDER FREE RADICAL FORMING CONDITIONS, SAID ACID AND OLEFIN BEING PRESENT IN THE REACTION MIXTURE IN A MOLAR RATIO OF AT LEAST ABOUT 10:1 AND AT A TEMPERATURE RANGING FROM ABOUT 15* TO ABOUT 25*C. BELOW THE BOILING POINT OF THE OLEFIN UP TO ABOUT THE REFLUX TEMPERATURE OF SAID REACTION MIXTURE AT ABOUT ATMOSPHERIC PRESSURE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |