US3853772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant containing alkali metal borate dispersed with a mixture of dispersants
Assignee: Chevron USA Inc
•
Filing: 1973-05-09
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Granted: 1974-12-10
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Expires: 1993-05-09
Abstract
Abstract Lubricant composition comprising: A. LUBRICATING OIL BASE B. HYDRATED ALKALI METAL BORATE C. ALKALINE EARTH METAL SULFONATE D. SUCCINIMIDES.
Inventors
- 👤 J Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:24
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2201/00; C10M2201/087; C10M2203/00; C10M2203/06; C10M2203/10; C10M2205/00; C10M2205/02; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/04; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/141; C10M2207/144; C10M2207/146; C10M2207/16; C10M2207/28; C10M2207/282; C10M2207/287; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/086; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/062; C10M2215/086; C10M2215/22; C10M2215/221; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/02; C10M2217/024; C10M2217/028; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/04; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
105 words
A LUBRICANT COMPRISING AN OIL OF LUBRICATING VISCOSITY HAVING DISPERSED THREIN FROM 1 TO 60 WEIGHT PERCENT, BASED ON THE ENTIRE COMPOSITIONS, OF AMORPHOUS PARTICLES OF LESS THAN ONE MICRON IN SIZE OF A HYDRATED ALKALI METAL BORATE HAVING 0.5 TO 4 WATERS OF HYDRATION, SAID BORATE BEING DISPERSED IN SAID OIL BY MEANS OF A DISPERSANT MIXTURE CONSISTING OF 40 TO 99 WEIGHT PERCENT OF A LIPOPHILIC ANIONIC SURFACE-ACTIVE AGENT WHICH IS AN ALKALINE EARTH METAL SULFONATE AND FROM 0.1 TO 60 WEIGHT PERCENT OF A LIPOPHILIC NONIONIC SURFACE-ACTIVE AGENT WHICH IS A SUCCINIMIDE DERIVED FROM ALKENYL SUCCINI ACID OR ANHYDRIDE AND ALKYLENE POLYAMINES.
Claim 2
Dependent Claim
105 words
A LUBRICANT COMPRISING AN OIL OF LUBRICATING VISCOSITY HAVING DISPERSED THREIN FROM 1 TO 60 WEIGHT PERCENT, BASED ON THE ENTIRE COMPOSITIONS, OF AMORPHOUS PARTICLES OF LESS THAN ONE MICRON IN SIZE OF A HYDRATED ALKALI METAL BORATE HAVING 0.5 TO 4 WATERS OF HYDRATION, SAID BORATE BEING DISPERSED IN SAID OIL BY MEANS OF A DISPERSANT MIXTURE CONSISTING OF 40 TO 99 WEIGHT PERCENT OF A LIPOPHILIC ANIONIC SURFACE-ACTIVE AGENT WHICH IS AN ALKALINE EARTH METAL SULFONATE AND FROM 0.1 TO 60 WEIGHT PERCENT OF A LIPOPHILIC NONIONIC SURFACE-ACTIVE AGENT WHICH IS A SUCCINIMIDE DERIVED FROM ALKENYL SUCCINI ACID OR ANHYDRIDE AND ALKYLENE POLYAMINES.
Claim 3
Dependent Claim
41 words
The composition of claim 1 wherein said alkali metal borate is a sodium borate and is present in a concentration of 1 to 25 weight percent and said dispersant mixture is present in a concentration of 0.5 to 3 weight percent.
Claim 4
Dependent Claim
35 words
The composition of claim 2 wherein said sodium borate is present in a concentration of 5 to 15 weight percent and said dispersant mixture is present in a concentration of 0.5 to 3 weight percent.
Claim 5
Dependent Claim
34 words
The composition of claim 1 wherein said dispersant mixture consists of 50 to 95 weight percent of said lipophilic anionic surface-active agent and 50 to 5 weight percent of said lipophilic nonionic surface-active agent.
Claim 6
Dependent Claim
29 words
The composition of claim 4 wherein said lipophilic anionic surface-active agent and said lipophilic nonionic surface-active agent are present in a weight ratio in the range of 6-1:1, respectively.
Claim 7
Dependent Claim
15 words
The composition of claim 5, wherein said weight ratio is in the range of 4-1:1.
Claim 8
Dependent Claim
138 words
A process for making a lubricating oil which comprises: admixing (1) an oil of lubricating viscosity, (2) from 1 to 60 weight percent of an alkali metal borate, based on the weight of said oil, (3) a sufficient amount of water to dissolve said alkali metal borate, and (4) from 0.05 to 3 weight percent of a dispersant mixture consisting of 40 to 99.9 weigh percent of a lipophilic anionic surface-active agent which is an alkaline earth metal sulfonate and 0.1 to 60 weight percent of a lipophilic nonionic surface-active agent which is a succinimide derived from alkenyl succinic acid or anhydride and alkylene polyamines; vigorously agitating the admixture to provide a stable emulsion of water-in-oil; and heating the emulsified mixture to a temperature greater than 250*F at substantially atmospheric pressure to remove free water from said mixture.
Claim 9
Dependent Claim
138 words
A process for making a lubricating oil which comprises: admixing (1) an oil of lubricating viscosity, (2) from 1 to 60 weight percent of an alkali metal borate, based on the weight of said oil, (3) a sufficient amount of water to dissolve said alkali metal borate, and (4) from 0.05 to 3 weight percent of a dispersant mixture consisting of 40 to 99.9 weigh percent of a lipophilic anionic surface-active agent which is an alkaline earth metal sulfonate and 0.1 to 60 weight percent of a lipophilic nonionic surface-active agent which is a succinimide derived from alkenyl succinic acid or anhydride and alkylene polyamines; vigorously agitating the admixture to provide a stable emulsion of water-in-oil; and heating the emulsified mixture to a temperature greater than 250*F at substantially atmospheric pressure to remove free water from said mixture.
Claim 10
Dependent Claim
14 words
The process defined in claim 7 wherein said alkali metal borate is sodium borate.
Claim 11
Dependent Claim
18 words
The process defined in claim 8 wherein said anionic surface-active agent is a calcium of barium petroleum sulfonate.
Claim 12
Dependent Claim
23 words
The composition defined in claim 1 wherein said alkali metal borate is sodium borate and said lipophilic surface-active agent is calcium petroleum sulfonate.
Claim 13
Dependent Claim
24 words
The composition defined in claim 10 wherein the weight ratio of said anionic lipophilic surface-active agent to nonionic lipophilic surface-active agent is from 6-1:1.
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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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |