US2614122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of dicarboxylic acids from saturated monocarboxylic acids
Assignee: Standard Oil Development Co
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Filing: 1951-05-23
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Granted: 1952-10-14
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Expires: 1971-05-23
Abstract
No abstract record available.
Inventors
- 👤 Louis A Mikeska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:37
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/16; C07C51/295
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A PROCESS FOR PREPARING DICARBOXYLIC ACID AND MONOCARBOXYLC ACID PRODUCTS FROM A MONOHYDROXY STEARIC ACID, IN WHICH THE HYDROXYL GROUP IS LINKED TO A NON-TERMINAL, SECONDARY CARBON ATOM AND SEGREGATING SAID ACID PRODUCTS, WHICH COMPRISES REACTING THE MONOHYDROXY STEARIC ACID WITH AN ALKALINE METAL HYDROXIDE IN LIQUID PHASE IN THE PRESENCE OF A SATURATED PETROLEUM HYDROCARBON SOLVENT BOILING ABOVE ABOUT 320* C. AT TEMPERATURES IN THE RANGE OF ABOUT 230* C. TO 320* C., DISSOLVING THE RESULTING LIQUID REACTION PRODUCT IN AN AQUEOUS SOLUTION, ACIDIFYING THE RESULTING AQUEOUS SOLUTION TO SEPARATE THEREFROM THE ACID PRODUCTS AS AN OIL PHASE AND SEPARATING FROM ACID PRODUCTS AN EXTRACT SOLUTION OF MONOCARBOXYLIC ACID PRODUCT SOLUBLE IN PETROLEUM ETHER.
Claim 2
Dependent Claim
115 words
A PROCESS FOR PREPARING DICARBOXYLIC ACID AND MONOCARBOXYLC ACID PRODUCTS FROM A MONOHYDROXY STEARIC ACID, IN WHICH THE HYDROXYL GROUP IS LINKED TO A NON-TERMINAL, SECONDARY CARBON ATOM AND SEGREGATING SAID ACID PRODUCTS, WHICH COMPRISES REACTING THE MONOHYDROXY STEARIC ACID WITH AN ALKALINE METAL HYDROXIDE IN LIQUID PHASE IN THE PRESENCE OF A SATURATED PETROLEUM HYDROCARBON SOLVENT BOILING ABOVE ABOUT 320* C. AT TEMPERATURES IN THE RANGE OF ABOUT 230* C. TO 320* C., DISSOLVING THE RESULTING LIQUID REACTION PRODUCT IN AN AQUEOUS SOLUTION, ACIDIFYING THE RESULTING AQUEOUS SOLUTION TO SEPARATE THEREFROM THE ACID PRODUCTS AS AN OIL PHASE AND SEPARATING FROM ACID PRODUCTS AN EXTRACT SOLUTION OF MONOCARBOXYLIC ACID PRODUCT SOLUBLE IN PETROLEUM ETHER.
References Cited (Backward Citations)
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Cited
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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) | 1955-10-14 | 1956-04-14 | 1956-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-14 | 1960-04-14 | 1960-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-14 | 1964-04-14 | 1964-10-14 | $7700.00 | Window Closed / Lapsed |