US2293052A - Lubricant containing a lithium compound - Google Patents
Lubricant containing a lithium compound Download PDFInfo
- Publication number
- US2293052A US2293052A US364246A US36424640A US2293052A US 2293052 A US2293052 A US 2293052A US 364246 A US364246 A US 364246A US 36424640 A US36424640 A US 36424640A US 2293052 A US2293052 A US 2293052A
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- US
- United States
- Prior art keywords
- soap
- lithium
- oil
- total
- proportion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M7/00—Solid or semi-solid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single solid or semi-solid substances
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- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/06—Mixtures of thickeners and additives
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- C10M5/00—Solid or semi-solid compositions containing as the essential lubricating ingredient mineral lubricating oils or fatty oils and their use
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
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- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
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- C10M2203/106—Naphthenic fractions
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- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
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Definitions
- Patented Aug. 18, 1942 STAT as PATENT LUBRICANT CONTAINING A LITHIUM COMI'OUND Clarence E. Earle, Washington, D. 0.
- This invention relates to a new and improved lubricant that is adapted for use over a great temperature range. More particularly, it relates to lubricants containing a soap of lithium together with a soap of either sodium or calcium, or both.
- lubricating compositions having the enhanced properties due to the incorporation of lithium soaps may be prepared by using higher fatty acid salts of calcium or sodium, or both, with lithium soaps of like acids.
- a lithium-sodium grease may be made with the following composition:
- a lithium-calcium grease may have the following compositionz' Mineral oil having a viscosity of 20.6 centistokes at 100 F2 -4 82.0
- a lubricating composition comprising a mineral oil, a lithium soap and a calcium soap,
- the proportion of'said soaps being at least sufllcient substantially to, thicken said oil but not substantially in excess of 40% of the total said lithium soap being at least such proportion of the total soap that it is sufiicient by itself to effect a detectible increase in the viscosity of said oil.
- a lubricating composition comprising a non-drying vegetable oil, a lithium soap and a calcium soap, the proportion of said soaps being at least sufiicient substantially to thicken said oil but not substantially in excess of 40% of the total said lithium soap being at least such proportionof the total soap that it is sufflcient by itself to effect a detectible increase in the viscosity of said oil.
- a lubricating composition comprising a mineral oil, a lithium soap and a sodium soap, the proportion of said soaps being at least sufficient substantially to thicken said oil but not substantially in excess of 40% of the total said lithium soap being at least-such proportion of the total soap that it is sufficient by itself to effect a detectible increase in the viscosity of said oil.
- a lubricating composition comprising a non-drying vegetable oil, a lithium soap and a sodium soap, the proportion of said soaps being at least sufficient substantially to thicken said oil but not substantially in excess of 40% of the total said lithium soap being at least such proportion of the total soap that it is sufilcient viscosity of said oil;
- a lubricating composition comprising a mineral oil, a lithium soap, a calcium soap and a sodium soap, the proportion of said soaps being at least sufficient substantially to thicken said oil but not substantially in excess of 40% of the total said lithium soap being at least such proportion of the total soap that it is sufficient by itself to effect a detectible increase in the viscosity of said oil.
- a lubricating composition comprising a non-drying vegetable oil, a lithium soap, a calcium soap and a sodium soap, the proportion of said soaps being at least sumcient substantially to thicken said oil but not substantially in excess of 40% of the total said lithium soap being at least such proportion of the total soap that it is sufiicient by itself to effect a detectible increase in the viscosity of said oil.
- a lubricating composition comprising an oleaginous substance selected from the group consisting of mineral oils and non-drying vegetable oils, a higher fatty acid soap of lithium, 10
- lithium soap being at least such proportion of the total soap that it is sufllcient by itself to etl'ect a detectible increase in the viscosity of said oleaginous substance.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Description
Patented Aug. 18, 1942 STAT as PATENT LUBRICANT CONTAINING A LITHIUM COMI'OUND Clarence E. Earle, Washington, D. 0.
No Drawing. Application November 4, 1940,
Serial No. 364,246
7 (llaims. (Cl. 252-40) (Granted under the act of March 3, 1883, as
amended April 30, 1928; 370 O. G. 757) This invention relates to a new and improved lubricant that is adapted for use over a great temperature range. More particularly, it relates to lubricants containing a soap of lithium together with a soap of either sodium or calcium, or both.
v It is the object of this invention to provide lubricating greases having improved thixotropic and lubricating properties so that a single lubricant is adapted for use between wide temperature extremes.
My copending application, "Ser No. 328,095, filed April 5, 1940, now Patent Number'2,274,673, discloses the highly beneficial results arising from incorporating lithium soaps of the higher fatty acids inlubricating oils, both in mineral and in non-drying vegetable oils.
I have found that the use of lithium soap or salts of soap forming higher fatty acids in the production of lubricating greases gives the greases entirely different properties from those obtained by the use of the other alkali metal salts. The greases produced by my method are water resistant, whereas the other alkali salts do not give such a property. My lithium soap greases Withstand temperatures greatly in excess of those containing other alkali metal salts. The properties of these improved lubricating greases are not only widely different from the other alkali metal soap types but also they are much more stable to temperature and pressure, both chemically and physically.
I have also found that lubricating compositions having the enhanced properties due to the incorporation of lithium soaps may be prepared by using higher fatty acid salts of calcium or sodium, or both, with lithium soaps of like acids.
A lithium-sodium grease may be made with the following composition:
' ,Per cent Lithium soap of mixed fatty acids having an average molecular weight of 277 17.52 Sodium soap of mixed fatty acids having an average molecular weight of 277 18.48 Mineral oil having a viscosity of 31.8 centistokes at 210 F -2 64 or I Sodium soap of mixed fatty acids 13.4 Lithium soap of mixed fatty acids 4.6
Mineral oil having a viscosity of 20.6 centistokes at 100 F 82.0
A lithium-calcium grease may have the following compositionz' Mineral oil having a viscosity of 20.6 centistokes at 100 F2 -4 82.0
It is to be understood that the percentages above given are illustrative and not limiting since the quantity of soap added depends upon the consistency desired in the final product. The consistency is, of course, increased by using a greater percentage of soap.
The invention, herein described and claimed may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.
I claim:
1. A lubricating composition, comprising a mineral oil, a lithium soap and a calcium soap,
the proportion of'said soaps being at least sufllcient substantially to, thicken said oil but not substantially in excess of 40% of the total said lithium soap being at least such proportion of the total soap that it is sufiicient by itself to effect a detectible increase in the viscosity of said oil.
2. A lubricating composition, comprising a non-drying vegetable oil, a lithium soap and a calcium soap, the proportion of said soaps being at least sufiicient substantially to thicken said oil but not substantially in excess of 40% of the total said lithium soap being at least such proportionof the total soap that it is sufflcient by itself to effect a detectible increase in the viscosity of said oil.
3. A lubricating composition, comprising a mineral oil, a lithium soap and a sodium soap, the proportion of said soaps being at least sufficient substantially to thicken said oil but not substantially in excess of 40% of the total said lithium soap being at least-such proportion of the total soap that it is sufficient by itself to effect a detectible increase in the viscosity of said oil.
4. A lubricating composition, comprising a non-drying vegetable oil, a lithium soap and a sodium soap, the proportion of said soaps being at least sufficient substantially to thicken said oil but not substantially in excess of 40% of the total said lithium soap being at least such proportion of the total soap that it is sufilcient viscosity of said oil;
by itself to effect a detectible increase in the 5. A lubricating composition, comprising a mineral oil, a lithium soap, a calcium soap and a sodium soap, the proportion of said soaps being at least sufficient substantially to thicken said oil but not substantially in excess of 40% of the total said lithium soap being at least such proportion of the total soap that it is sufficient by itself to effect a detectible increase in the viscosity of said oil.
6. A lubricating composition, comprising a non-drying vegetable oil, a lithium soap, a calcium soap and a sodium soap, the proportion of said soaps being at least sumcient substantially to thicken said oil but not substantially in excess of 40% of the total said lithium soap being at least such proportion of the total soap that it is sufiicient by itself to effect a detectible increase in the viscosity of said oil.
'7. A lubricating composition, comprising an oleaginous substance selected from the group consisting of mineral oils and non-drying vegetable oils, a higher fatty acid soap of lithium, 10
oleaginous substance said lithium soap being at least such proportion of the total soap that it is sufllcient by itself to etl'ect a detectible increase in the viscosity of said oleaginous substance.
CLARENCE E. EARLE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US364246A US2293052A (en) | 1940-04-05 | 1940-11-04 | Lubricant containing a lithium compound |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US328095A US2274673A (en) | 1940-04-05 | 1940-04-05 | Lubricating composition |
US364246A US2293052A (en) | 1940-04-05 | 1940-11-04 | Lubricant containing a lithium compound |
US472509A US2397956A (en) | 1943-01-15 | 1943-01-15 | Production of lubricants |
GB2566793X | 1948-10-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2293052A true US2293052A (en) | 1942-08-18 |
Family
ID=32234286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US364246A Expired - Lifetime US2293052A (en) | 1940-04-05 | 1940-11-04 | Lubricant containing a lithium compound |
Country Status (1)
Country | Link |
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US (1) | US2293052A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2417264A (en) * | 1944-01-01 | 1947-03-11 | Standard Oil Dev Co | Lubricant |
US2420902A (en) * | 1943-12-08 | 1947-05-20 | Standard Oil Dev Co | Lubricating composition |
US2450219A (en) * | 1945-04-10 | 1948-09-28 | Texas Co | Texture-stable lithium base grease |
US2451039A (en) * | 1941-12-24 | 1948-10-12 | Standard Oil Dev Co | Lubricant |
US2623017A (en) * | 1950-08-03 | 1952-12-23 | Phillips Petroleum Co | Gel-type grease |
US2641577A (en) * | 1951-06-22 | 1953-06-09 | Standard Oil Dev Co | Lithium-calcium lubricating grease composition |
US2733209A (en) * | 1956-01-31 | Magnesium-lithium-sodnjm grease |
-
1940
- 1940-11-04 US US364246A patent/US2293052A/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2733209A (en) * | 1956-01-31 | Magnesium-lithium-sodnjm grease | ||
US2451039A (en) * | 1941-12-24 | 1948-10-12 | Standard Oil Dev Co | Lubricant |
US2420902A (en) * | 1943-12-08 | 1947-05-20 | Standard Oil Dev Co | Lubricating composition |
US2417264A (en) * | 1944-01-01 | 1947-03-11 | Standard Oil Dev Co | Lubricant |
US2450219A (en) * | 1945-04-10 | 1948-09-28 | Texas Co | Texture-stable lithium base grease |
US2623017A (en) * | 1950-08-03 | 1952-12-23 | Phillips Petroleum Co | Gel-type grease |
US2641577A (en) * | 1951-06-22 | 1953-06-09 | Standard Oil Dev Co | Lithium-calcium lubricating grease composition |
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