US2839470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of basic polyvalent metal salts of organic acids
Assignee: Shell Development Co
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Filing: 1957-02-06
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Granted: 1958-06-17
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Expires: 1977-02-06
Abstract
No abstract record available.
Inventors
- 👤 Eleanore R Warren
- 👤 Henry W Anderson
- 👤 Ratner Hyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:31
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/62; C07C51/00; C07C51/41; C07C51/414; C07C65/00; C07C65/01; C07C65/03; C07C65/05; C07G; C07G99/00; C07G99/002; C07G99/0024; C10; C10M; C10M159/00; C10M159/12; C10M159/20; C10M159/24; C10M2207/00; C10M2207/10; C10M2207/16; C10M2207/26; C10M2207/262; C10M2219/00; C10M2219/04; C10M2219/046; C10N; C10N2040/00; C10N2040/25; C10N2040/252; C10N2040/253
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN A METHOD FOR PREPARING AN OIL-SOLUBLE POLYVALENT METAL SALT OF AN ORGANIC ACID, THE STEP COMPRISING REACTING, AS THE ONLY CHEMICALLY REACTIVE ORGANIC MATERIAL, AN OIL-SOLUBLE ORGANIC ACID COMPOUND CONTAINING AT LEAST 12 CARBON ATOMS AND SELECTED FROM THE CLASS CONSISTING OF (1) THE PETROLEUM SULFONIC ACIDS, (2) CARBOCYCLIC CARBOXYLIC ACIDS AND (3) SALTS OF THESE ACIDS WITH ALKALI METALS AND WITH ALKALINE EARTH METALS, IN THE PRESENCE OF A SUBSTANTIAL AQUEOUS PHASE COMPRISING A WEIGHT OF WATER EQUAL TO NOT LESS THAN 2% OF THE WEIGHT OF SAID ORGANIC ACID COMPOUND, WITH A POLYVALENT METAL CARBONATE WHICH IS FORMED IN SITU BY THE REACTION OF A POLYVALENT METAL BASE AND CARBON DIOXIDE, AT LEAST A PART OF SAID POLYVALENT METAL BASE BEING IN THE FREE STATE.
Claim 2
Dependent Claim
128 words
IN A METHOD FOR PREPARING AN OIL-SOLUBLE POLYVALENT METAL SALT OF AN ORGANIC ACID, THE STEP COMPRISING REACTING, AS THE ONLY CHEMICALLY REACTIVE ORGANIC MATERIAL, AN OIL-SOLUBLE ORGANIC ACID COMPOUND CONTAINING AT LEAST 12 CARBON ATOMS AND SELECTED FROM THE CLASS CONSISTING OF (1) THE PETROLEUM SULFONIC ACIDS, (2) CARBOCYCLIC CARBOXYLIC ACIDS AND (3) SALTS OF THESE ACIDS WITH ALKALI METALS AND WITH ALKALINE EARTH METALS, IN THE PRESENCE OF A SUBSTANTIAL AQUEOUS PHASE COMPRISING A WEIGHT OF WATER EQUAL TO NOT LESS THAN 2% OF THE WEIGHT OF SAID ORGANIC ACID COMPOUND, WITH A POLYVALENT METAL CARBONATE WHICH IS FORMED IN SITU BY THE REACTION OF A POLYVALENT METAL BASE AND CARBON DIOXIDE, AT LEAST A PART OF SAID POLYVALENT METAL BASE BEING IN THE FREE STATE.
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) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |