US3868329A
Expired / Lapsed
US
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Grease composition
Assignee: Chevron USA Inc
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Filing: 1973-05-29
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Granted: 1975-02-25
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Expires: 1993-05-29
Abstract
Abstract A grease composition is disclosed comprising (a) a lubricating oil base, (b) a mono or polyurea thickener, (c) a Mannich Base prepared by reacting formaldehyde, phenol and an amine selected from diethanolamine, N,N-diethanol alkylenediamine, and diethylamine, and (d) an alkaline earth metal aliphatic monocarboxylate having from 1 to 3 carbons.
Inventors
- 👤 Stuart Houston Brown
- 👤 Richard E Crocker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:24
CPC Classifications
C; C10; C10M; C10M169/00; C10M169/06; C10M2201/00; C10M2201/08; C10M2201/082; C10M2201/083; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/08; C10M2215/082; C10M2215/10; C10M2215/102; C10M2215/24; C10M2215/28; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/04; C10M2217/042; C10M2217/043; C10M2217/06; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2219/108; C10N; C10N2010/00; C10N2010/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
112 words
A GREASE COMPOSITION COMPRISING A MAJOR PORTION OF AN OIL OF LUBRICATING VISCOSITY, (1) FROM 0.5 TO 20 WEIGHT PERCENT OF A WATER AND OIL-INSOLUBLE MONO OR POLYUREA THICKENING AGENT HAVING AT LEAST ONE UREIDO GROUP AND HAVING A MOLECULAR WEIGHT BETWEEN ABOUT 350 AND 2,500, (2) FROM 3 TO 30 WEIGHT PERCENT OF AN ALKALINE EARTH METAL ALIPHATIC MONOCARBOXYLATE HAVING FROM 1 TO 3 CARBONS, AND (3) FROM 0.1 TO 10 WEIGHT PERCENT OF A MANNICH BASE PREPARED BY REACTING PHENOL WITH FORMALDEHYYDE AND AN AMINE SELECTED FROM THE CLASS CONSISTING OF DIETHANOLAMINE, N,N-DIETHANOL ALKYLENEDIAMINE AND DIETHYYLAMINE, THE MOLAR RATIO FO FORMALDIAMINE AND DIETHYBEING BETWEEN ABOUT 0.5 AND 5:0.5 AND 5*1.
Claim 2
Dependent Claim
112 words
A GREASE COMPOSITION COMPRISING A MAJOR PORTION OF AN OIL OF LUBRICATING VISCOSITY, (1) FROM 0.5 TO 20 WEIGHT PERCENT OF A WATER AND OIL-INSOLUBLE MONO OR POLYUREA THICKENING AGENT HAVING AT LEAST ONE UREIDO GROUP AND HAVING A MOLECULAR WEIGHT BETWEEN ABOUT 350 AND 2,500, (2) FROM 3 TO 30 WEIGHT PERCENT OF AN ALKALINE EARTH METAL ALIPHATIC MONOCARBOXYLATE HAVING FROM 1 TO 3 CARBONS, AND (3) FROM 0.1 TO 10 WEIGHT PERCENT OF A MANNICH BASE PREPARED BY REACTING PHENOL WITH FORMALDEHYYDE AND AN AMINE SELECTED FROM THE CLASS CONSISTING OF DIETHANOLAMINE, N,N-DIETHANOL ALKYLENEDIAMINE AND DIETHYYLAMINE, THE MOLAR RATIO FO FORMALDIAMINE AND DIETHYBEING BETWEEN ABOUT 0.5 AND 5:0.5 AND 5*1.
Claim 3
Dependent Claim
14 words
The grease composition defined in claim 1 wherein said N,N-diethanol alkylenediamine has the formula:
Claim 4
Dependent Claim
39 words
The grease composition defined in claim 1 wherein said Mannich Base is prepared by reacting between 2 and 4.4 molar parts of formaldehyde with between 2 and 4 molar parts of said amine for each part of said phenol.
Claim 5
Dependent Claim
12 words
The grease composition defined in claim 3 wherein said amine is diethanolamine.
Claim 6
Dependent Claim
74 words
A grease composition comprising (1) a major portion of an oil of lubricating viscosity, (2) from 3 to 30 weight percent of an alkaline earth metal aliphatic monocarboxylate having from 1 to 3 carbons, (3) from 0.5 to 20 weight percent of a mono or polyurea thickener prepared by reacting a. a diisocyanate having the formula OCN-R-NCO wherein R is a hydrocarbylene having from 2 to 30 carbons; b. a polyamine having the formula
Claim 7
Dependent Claim
74 words
A grease composition comprising (1) a major portion of an oil of lubricating viscosity, (2) from 3 to 30 weight percent of an alkaline earth metal aliphatic monocarboxylate having from 1 to 3 carbons, (3) from 0.5 to 20 weight percent of a mono or polyurea thickener prepared by reacting a. a diisocyanate having the formula OCN-R-NCO wherein R is a hydrocarbylene having from 2 to 30 carbons; b. a polyamine having the formula
Claim 8
Dependent Claim
28 words
The grease composition defined in claim 5 wherein said diisocyanate is tolylene diisocyanate, said polyamine is ethylene diamine and said monofunctional compound is a C10 to C24 monoamine.
Claim 9
Dependent Claim
30 words
The grease composition defined in claim 6 wherein 2 molar parts of said diisocyanate are reacted with 1 molar part of said polyamine and 2 molar parts of said monoamine.
Claim 10
Dependent Claim
12 words
The grease composition defined in claim 7 wherein said amine is diethanolamine.
Claim 11
Dependent Claim
38 words
The grease composition defined in claim 7 wherein the Mannich Base is prepared by reacting 2 to 4.4 molar parts of formaldehyde and 2 to 4 molar parts of diethanol amine with each molar part of said phenol.
Claim 12
Dependent Claim
37 words
The grease composition defined in claim 5 wherein said alkaline earth metal aliphatic monocarboxylate is calcium or barium acetate. 11., The grease composition defined in claim 1 wherein said alkaline earth metal aliphatic monocarboxylate is calcium acetate.
Claim 13
Dependent Claim
17 words
The grease composition defined in claim 10 wherein said alkaline earth metal aliphatic monocarboxylate is calcium acetate.
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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) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |