US2511630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid hydrocarbon lubricant, an additive therefor, and a process of making the additive
Assignee: Shell Development Co
•
Filing: 1947-07-14
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Granted: 1950-06-13
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Expires: 1967-07-14
Abstract
No abstract record available.
Inventors
- 👤 Mayer B Goren
- 👤 David E Adelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:32
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C10; C10M; C10M137/00; C10M137/16; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/16; C10M2205/18; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/027; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/141; C10M2207/142; C10M2207/144; C10M2207/146; C10M2207/20; C10M2207/22; C10M2207/24; C10M2207/28; C10M2207/284; C10M2207/285; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2209/10; C10M2209/101; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/024; C10M2211/04; C10M2211/044; C10M2211/06; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/10; C10M2215/102; C10M2215/16; C10M2215/18; C10M2215/182; C10M2215/20; C10M2215/202; C10M2215/204; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/042; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/064; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/086; C10M2219/087; C10M2219/089; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/043; C10M2223/045; C10M2223/047; C10M2223/06; C10M2223/063; C10M2223/065; C10M2223/10; C10M2223/12; C10M2227/00; C10M2227/06; C10M2227/08; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/10; C10N2010/12; C10N2010/14; C10N2010/16; C10N2060/00; C10N2060/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
125 words
A COMPOSITION COMPRISING A MAJOR AMOUNT OF A LUBRICATING LIQUID HYDROCARBON AND A MINOR AMOUNT SUFFICIENT TO STABILIZE SAID LUBRICATING LIQUID HYDROCARBON AGAINST DETERIORATION AND IMPROVE ITS ANTI-WEEAR PROPERTIES OF A STABLE, NONCORROSIVE NEUTRALIZED PHOSPHORUS AND SULFUR CONTAINING REACTION PRODUCT OBTAINED BY REACTING AT A TEMPERATURE RANGING FROM 130*C. TO ABOUT 200*C. A PHOSPHORUS SULFIDE WITH AN UNSATURATED CYCLIC KETONE FRACITON HAVING AT LEAST 12 CARBON ATOMS AND BEING AN ISOPHRONE BOTTOMS RESIDUAL FRACTION HAVING A MINIMUM BOILING POINT GREATER THAN 140*C. AT 10 MM. HG PRESSURE, AND DERIVED FROM CONDENSATION OF ACETONE TO HIGHER MOLECUULAR WEIGHT ISOPHORONE TYPE FRACTION, THE RATIO OF THE PHOSPHORUS SULFIDE TO THE KETONE COMPOUND BEING 1:4 TO ABOUT 1:8, RESPECTIVELY, AND NEUTRALIZING THE REACTION PRODUCT WITH A BASIC REAGENT.
Claim 2
Dependent Claim
125 words
A COMPOSITION COMPRISING A MAJOR AMOUNT OF A LUBRICATING LIQUID HYDROCARBON AND A MINOR AMOUNT SUFFICIENT TO STABILIZE SAID LUBRICATING LIQUID HYDROCARBON AGAINST DETERIORATION AND IMPROVE ITS ANTI-WEEAR PROPERTIES OF A STABLE, NONCORROSIVE NEUTRALIZED PHOSPHORUS AND SULFUR CONTAINING REACTION PRODUCT OBTAINED BY REACTING AT A TEMPERATURE RANGING FROM 130*C. TO ABOUT 200*C. A PHOSPHORUS SULFIDE WITH AN UNSATURATED CYCLIC KETONE FRACITON HAVING AT LEAST 12 CARBON ATOMS AND BEING AN ISOPHRONE BOTTOMS RESIDUAL FRACTION HAVING A MINIMUM BOILING POINT GREATER THAN 140*C. AT 10 MM. HG PRESSURE, AND DERIVED FROM CONDENSATION OF ACETONE TO HIGHER MOLECUULAR WEIGHT ISOPHORONE TYPE FRACTION, THE RATIO OF THE PHOSPHORUS SULFIDE TO THE KETONE COMPOUND BEING 1:4 TO ABOUT 1:8, RESPECTIVELY, AND NEUTRALIZING THE REACTION PRODUCT WITH A BASIC REAGENT.
Claim 3
Dependent Claim
95 words
A PROCESS OF PRODUCING A STABLE, NON-CORROSIVE, OIL-SOLUBLE PRODUCT, WHICH COMPRISES REACTING AT A TEMPERATURE OF FROM 120*C. TO 200*C. ONE MOLE OF P2S5 WITH FROM 1.2 TO 2 MOLES OF AN UNSATURATED CYCLIC KETONE FRACTION WHICH IS AN ISOPHORONE BOTTOMS RESIDUAL FRACTION HAVING A MINIMUM BOILING POINT GREATER THAN 140*C. AT 10 MM. HG PRESSURE AND HAVING AT LEAST 12 CARBON ATOMS UNTIL ABOUT 1.2% TO 4.6% PHOSPHORUS AND 14.3 TO 15.3% SULFUR HAVE ENTERED THE REACTION PRODUCT AND NETURALIZING THE REACTION PRODUCT WITH A BASIC REAGENT CONTAINING CALCIUM AS A METAL CONSTITUTENT THEREOF.
Claim 4
Dependent Claim
95 words
A PROCESS OF PRODUCING A STABLE, NON-CORROSIVE, OIL-SOLUBLE PRODUCT, WHICH COMPRISES REACTING AT A TEMPERATURE OF FROM 120*C. TO 200*C. ONE MOLE OF P2S5 WITH FROM 1.2 TO 2 MOLES OF AN UNSATURATED CYCLIC KETONE FRACTION WHICH IS AN ISOPHORONE BOTTOMS RESIDUAL FRACTION HAVING A MINIMUM BOILING POINT GREATER THAN 140*C. AT 10 MM. HG PRESSURE AND HAVING AT LEAST 12 CARBON ATOMS UNTIL ABOUT 1.2% TO 4.6% PHOSPHORUS AND 14.3 TO 15.3% SULFUR HAVE ENTERED THE REACTION PRODUCT AND NETURALIZING THE REACTION PRODUCT WITH A BASIC REAGENT CONTAINING CALCIUM AS A METAL CONSTITUTENT THEREOF.
Claim 5
Dependent Claim
38 words
AS A COMPOSITION A NEUTRALIZED PHOSPHORUS AND SULFUR CONTAINING UNSATURATED CYCLIC KETONE HAVING AT LEAST 12 CARBON ATOMS, THE PHOSPHORUS AND SULFUR BEING 1.2 TO 4.6% AND 14.3 TO 15.3%, RESPECTIVELY PRODUCED BY THE PROCESS OF CLAIM 11.
References Cited (Backward Citations)
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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) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |