US2856362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating compositions
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1956-04-24
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Granted: 1958-10-14
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Expires: 1976-04-24
Abstract
No abstract record available.
Inventors
- 👤 Arnold J Morway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:07
CPC Classifications
C; C10; C10M; C10M5/00; C10M2205/00; C10M2207/00; C10M2207/08; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/282; C10M2207/30; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/04; C10M2219/044; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
139 words
THE METHOD OF PREPARING LUBRICATING COMPOSITIONS WHICH COMPRISES DISPERSING AN ALKALINE EARTH METAL BASE, LOWER MOLECULAR WEIGHT CARBOXYLIC ACIDS HAVING ABOUT 1 TO 3 CARBON ATOM PER MOLECULE, HIGH MOLECULAR WEIGHT MONOCARBOXYLIC ACIDS HAVING FROM ABOUT 12 TO 30 CARBON ATOMS PER MOLECULE AND AN ARYL SULFONIC ACID HAVING 6 TO 9 CARBON ATOMS IN A LUBRICATING OIL, HEATING THE DISPERSION TO A TEMPERATURE WITHIN THE RANGE OF ABOUT 450* TO 550* F., AND THEN COOLING TO OBTAIN SAID LUBRICATING COMPOSITION, WHEREIN THE MOLE RATIO OF LOW MOLECULAR WEIGHT CARBOXYLIC ACID TO THE HIGH MOLECULAR WEIGHT MONOCARBOXYLIC ACID PLUS THE SULFONIC ACID IS ABOUT 8:1 TO 20:1, THE MOLAR RATIO OF SAID SULFONIC ACID TO SAID HIGH MOLECULAR WEIGHT ACID IS ABOUT 1:1 TO 3:1, AND SAID METAL BASE IS PERCENT IN AN AMOUNT SUFFICIENT TO NEUTRALIZE SAID ACIDS.
Claim 2
Independent Claim
139 words
THE METHOD OF PREPARING LUBRICATING COMPOSITIONS WHICH COMPRISES DISPERSING AN ALKALINE EARTH METAL BASE, LOWER MOLECULAR WEIGHT CARBOXYLIC ACIDS HAVING ABOUT 1 TO 3 CARBON ATOM PER MOLECULE, HIGH MOLECULAR WEIGHT MONOCARBOXYLIC ACIDS HAVING FROM ABOUT 12 TO 30 CARBON ATOMS PER MOLECULE AND AN ARYL SULFONIC ACID HAVING 6 TO 9 CARBON ATOMS IN A LUBRICATING OIL, HEATING THE DISPERSION TO A TEMPERATURE WITHIN THE RANGE OF ABOUT 450* TO 550* F., AND THEN COOLING TO OBTAIN SAID LUBRICATING COMPOSITION, WHEREIN THE MOLE RATIO OF LOW MOLECULAR WEIGHT CARBOXYLIC ACID TO THE HIGH MOLECULAR WEIGHT MONOCARBOXYLIC ACID PLUS THE SULFONIC ACID IS ABOUT 8:1 TO 20:1, THE MOLAR RATIO OF SAID SULFONIC ACID TO SAID HIGH MOLECULAR WEIGHT ACID IS ABOUT 1:1 TO 3:1, AND SAID METAL BASE IS PERCENT IN AN AMOUNT SUFFICIENT TO NEUTRALIZE SAID ACIDS.
Claim 3
Dependent Claim
132 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR PROPORTION OF A LUBRICATING OIL BASE STOCK AND A MINOR PROPORTION OF AN ALKALINE EARTH METAL SOAP-SALT COMPLEX FORMED AT A TEMPEATURE IN THE RANGE OF 400* TO 550*F., SAID COMPLEX CONSISTING ESSENTIALLY OF A HIGH MOLECULAR WEIGHT MONOCARBOXYLIC ACID HAVING FROM ABOUT 12 TO 30 CARBON ATOMS PER MOLECULE, A LOWER MOLECULAR WEIGHT CARBOXYLIC ACID HAVING FROM ABOUT 1 TO 3 CARBON ATOMS PER MOLECULE AND AN ARYL SULFONIC ACID HAING FROM ABOUT 6 TO 9 CARBON ATOMS PER MOLECULE, WHEREIN THE MOLE RATIO OF LOW MOLECULAR WEIGHT CARBOXYLIC ACID TO THE HIGH MOLECULAR WEIGHT MONOCARBOXYLIC ACID PLUS THE SULFONIC ACID IS ABOUT 8:1 TO 20:1 AND THE MOLE RATIO OF SAID SULFONIC ACID TO SAID HIGH MOLECULAR WEIGHT ACID IS ABOUT 1:1 TO 3:1.
Claim 4
Dependent Claim
132 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR PROPORTION OF A LUBRICATING OIL BASE STOCK AND A MINOR PROPORTION OF AN ALKALINE EARTH METAL SOAP-SALT COMPLEX FORMED AT A TEMPEATURE IN THE RANGE OF 400* TO 550*F., SAID COMPLEX CONSISTING ESSENTIALLY OF A HIGH MOLECULAR WEIGHT MONOCARBOXYLIC ACID HAVING FROM ABOUT 12 TO 30 CARBON ATOMS PER MOLECULE, A LOWER MOLECULAR WEIGHT CARBOXYLIC ACID HAVING FROM ABOUT 1 TO 3 CARBON ATOMS PER MOLECULE AND AN ARYL SULFONIC ACID HAING FROM ABOUT 6 TO 9 CARBON ATOMS PER MOLECULE, WHEREIN THE MOLE RATIO OF LOW MOLECULAR WEIGHT CARBOXYLIC ACID TO THE HIGH MOLECULAR WEIGHT MONOCARBOXYLIC ACID PLUS THE SULFONIC ACID IS ABOUT 8:1 TO 20:1 AND THE MOLE RATIO OF SAID SULFONIC ACID TO SAID HIGH MOLECULAR WEIGHT ACID IS ABOUT 1:1 TO 3:1.
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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) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |