US2967831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic fluid and its preparation
Assignee: Tidewater Oil Co
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Filing: 1958-09-25
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Granted: 1961-01-10
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Expires: 1978-09-25
Abstract
No abstract record available.
Inventors
- 👤 Gordon H Hommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:29
CPC Classifications
C; C10; C10M; C10M173/00; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/04; C10M2207/046; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10N; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
101 words
A WATER SOLUBLE OIL-EMULSIFER BASE USEFUL IN THE PREPARATION OF AQUEOUS FLUID EMULSINS CONSISTING ESSENTIALLY OF A PETROLEUM OIL FRACTION MIXED IN APPROXIMATELY EQUAL PROPORTIONS WITH THE PRODUCT MADE BY THE PROCESS OF REACTING AT A TEMPERATURE BETWEEN ABOUT 300*F. AND 350*F. A MIXTURE OF FATTY ACID HAVING AT LEAST EIGHT CARBON ATOMS PER MOLECULE AND A LOWER ALKANOLAMINE UNTIL BETWEEN 75% AND 90% OF THE TOTAL ACID VALUE AND NO MORE IS CONSUMED IN A WATER-SPLITTING REACTION, AND REMOVING SAID WATER FROM THE RESULTING PRODUCT, THE ALKANOLAMINE BEING PRESENT IN AMOUNT BETWEEN 1.1 AND 1.5 EQUIVALENTS PER EQUIVALENT OF ACID.
Claim 2
Dependent Claim
101 words
A WATER SOLUBLE OIL-EMULSIFER BASE USEFUL IN THE PREPARATION OF AQUEOUS FLUID EMULSINS CONSISTING ESSENTIALLY OF A PETROLEUM OIL FRACTION MIXED IN APPROXIMATELY EQUAL PROPORTIONS WITH THE PRODUCT MADE BY THE PROCESS OF REACTING AT A TEMPERATURE BETWEEN ABOUT 300*F. AND 350*F. A MIXTURE OF FATTY ACID HAVING AT LEAST EIGHT CARBON ATOMS PER MOLECULE AND A LOWER ALKANOLAMINE UNTIL BETWEEN 75% AND 90% OF THE TOTAL ACID VALUE AND NO MORE IS CONSUMED IN A WATER-SPLITTING REACTION, AND REMOVING SAID WATER FROM THE RESULTING PRODUCT, THE ALKANOLAMINE BEING PRESENT IN AMOUNT BETWEEN 1.1 AND 1.5 EQUIVALENTS PER EQUIVALENT OF ACID.
Claim 3
Dependent Claim
116 words
A WATER SOLUBLE OIL-EMULSIFIER BASE USEFUL IN THE PREPARATION OF AQUEOUS FLUID EMULSIONS CONSISTING ESSENTIALLY OF A PETROLEUM OIL FRACTION MIXED IN APPROXIMATELY EQUAL PROPORTIONS WITH THE REACTION PRODUCT MADE BY REACTING AT A TEMPERATURE BETWEEN ABOUT 300*F. AND 350* F. A LOWER ALKANOLAMINE WITH AN ACID STOCK CONSISTING ON AN ACID-EQUIVALENT BASIS ESSENTIALLY OF 100% TO 75% FATTY ACID HAVING AT LEAST EIGHT CARBON ATOMS PER MOLECULE AND 0% TO 25% ETHYLENE DIAMINE TETRAACETIC ACID UNTIL BETWEEN 75% AND 90% OF THE TOTAL ACID VALUE IS CONSUMED IN A WATER-SPLITTING REACTION, AND REMOVING SAID WATER FROM THE RESULTING PRODUCT, THE ALKANOLAMINE BEING PRESENT IN AN AMOUNT BETWEEN 1.1 AND 1.5 EQUIVALENTS PER EQUIVALENTS OF ACID.
Claim 4
Dependent Claim
116 words
A WATER SOLUBLE OIL-EMULSIFIER BASE USEFUL IN THE PREPARATION OF AQUEOUS FLUID EMULSIONS CONSISTING ESSENTIALLY OF A PETROLEUM OIL FRACTION MIXED IN APPROXIMATELY EQUAL PROPORTIONS WITH THE REACTION PRODUCT MADE BY REACTING AT A TEMPERATURE BETWEEN ABOUT 300*F. AND 350* F. A LOWER ALKANOLAMINE WITH AN ACID STOCK CONSISTING ON AN ACID-EQUIVALENT BASIS ESSENTIALLY OF 100% TO 75% FATTY ACID HAVING AT LEAST EIGHT CARBON ATOMS PER MOLECULE AND 0% TO 25% ETHYLENE DIAMINE TETRAACETIC ACID UNTIL BETWEEN 75% AND 90% OF THE TOTAL ACID VALUE IS CONSUMED IN A WATER-SPLITTING REACTION, AND REMOVING SAID WATER FROM THE RESULTING PRODUCT, THE ALKANOLAMINE BEING PRESENT IN AN AMOUNT BETWEEN 1.1 AND 1.5 EQUIVALENTS PER EQUIVALENTS OF ACID.
References Cited (Backward Citations)
US2173909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |