US2274674A - Lubricant containing a lithium compound - Google Patents

Lubricant containing a lithium compound Download PDF

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Publication number
US2274674A
US2274674A US364247A US36424740A US2274674A US 2274674 A US2274674 A US 2274674A US 364247 A US364247 A US 364247A US 36424740 A US36424740 A US 36424740A US 2274674 A US2274674 A US 2274674A
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Prior art keywords
lithium
soap
oil
lithium compound
lubricating
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US364247A
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Clarence E Earle
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Individual
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Priority claimed from US328095A external-priority patent/US2274673A/en
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Priority to US364247A priority Critical patent/US2274674A/en
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Priority claimed from US472509A external-priority patent/US2397956A/en
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    • 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
    • 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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    • 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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    • 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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    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/104—Aromatic 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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    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Semi-solids; greasy

Definitions

  • This invention relates to lubricating compositions containing compounds of lithium and more particularly to lubricants having a resin or nondrying vegetable oil base, which lubricants are particularly adapted for heavy duty.
  • lithium compounds have been incorporated in various types of resins; as well as in different oils, the lithium compounds being preferably soaps of the higher fatty acids having an average molecular weight of 277.
  • Certain chlorinated compounds such as chlorinated diphenyl and chlorinated diphenyl oxide have been used as a base into which the lithium soaps were incorporated.
  • the quantity of lithium soap used was 18%.
  • different .percentages of a soap will be employed to obtain varying desired consistencies.
  • the soap has been produced in the oil by introducing-lithium compounds that hydrolize and simultaneously saponify a portion of the constituents of the oil itself so that the soap is formed in the oil.
  • jojobo oil derived from the edible seed of Simmonsia californica when so treated gives a grease-like substance of a relatively stiif consistency and excellent thixotropic and lubricating properties.
  • This composition has an unusually high resistance to heat, its lubricating properties being retained at temperatures in excess of 400 F. While accurate determinations have not been made, it is estimated that the resulting lithium soap constituted about 8% of the total.
  • a lubricating composition comprising chlorinated diphenyl and about 18% of a lithium soap having an average molecular weight of 277.
  • a lubricating composition comprising chlorinated diphenyl and a lithium soap having an average molecular weight of 277 suflicient in i quantity substantially to thicken said chlorinated diphenyl.
  • a lubricating composition comprising chlorinated diphenyl oxide and about 18% of a lithium soap having an average molecular weight of 2'77.
  • 4.'A lubricating composition comprising chlorinated diphenyl oxide and a lithium soap having an average molecular weight of 277 sufficient in quantity substantially to thicken said chlorinated diphenyl oxide.
  • a lubricating composition comprising at least one substance from the group consisting of chlorinated diphenyl and chlorinated diphenyl oxide, and lithium soap of an average molecular weight of 277 suflicient in quantity substantially to thicken said diphenyl.
  • a lubricating composition comprising jojobo oil and about 8% of a lithium soap.
  • a lubricating composition comprising jojobo oil and suflicient lithium soap substantially to thicken said oil.

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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 Mar. 3, 1942 UNITED STATES PATENT OFFICE LUBRICANT CONTAINING A LITHIUM COMPOUND Clarence E. Earle, Washington, D. C.
No Drawing.
Application November 4, 1940, Serial No. 364,247
7 Claims. (Cl. 252-42) This invention relates to lubricating compositions containing compounds of lithium and more particularly to lubricants having a resin or nondrying vegetable oil base, which lubricants are particularly adapted for heavy duty.
It is the object of this invention to produce lubricants having desirable properties for high temperature use and in particular for service as chain and cable lubricants.
My copending application, Ser. No. 328,095, filed April 5, 1940, discloses the highly beneficial results arising from incorporating lithium soaps of the higher fatty acids in lubricating 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.
Several lithium compounds have been incorporated in various types of resins; as well as in different oils, the lithium compounds being preferably soaps of the higher fatty acids having an average molecular weight of 277. Certain chlorinated compounds such as chlorinated diphenyl and chlorinated diphenyl oxide have been used as a base into which the lithium soaps were incorporated. For the particular use mentioned, namely, superior chain and cable lubricants, the quantity of lithium soap used was 18%. However,it will be apparent to those skilled in the art that different .percentages of a soap will be employed to obtain varying desired consistencies.
Not only have the lithium soaps been formed and introduced as such into an oil, but the soap has been produced in the oil by introducing-lithium compounds that hydrolize and simultaneously saponify a portion of the constituents of the oil itself so that the soap is formed in the oil. As an example, I have found that jojobo oil derived from the edible seed of Simmonsia californica, when so treated gives a grease-like substance of a relatively stiif consistency and excellent thixotropic and lubricating properties. This composition has an unusually high resistance to heat, its lubricating properties being retained at temperatures in excess of 400 F. While accurate determinations have not been made, it is estimated that the resulting lithium soap constituted about 8% of the total.
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 chlorinated diphenyl and about 18% of a lithium soap having an average molecular weight of 277.
2. A lubricating composition, comprising chlorinated diphenyl and a lithium soap having an average molecular weight of 277 suflicient in i quantity substantially to thicken said chlorinated diphenyl.
3. A lubricating composition, comprising chlorinated diphenyl oxide and about 18% of a lithium soap having an average molecular weight of 2'77.
4.'A lubricating composition, comprising chlorinated diphenyl oxide and a lithium soap having an average molecular weight of 277 sufficient in quantity substantially to thicken said chlorinated diphenyl oxide.
5. A lubricating composition, comprising at least one substance from the group consisting of chlorinated diphenyl and chlorinated diphenyl oxide, and lithium soap of an average molecular weight of 277 suflicient in quantity substantially to thicken said diphenyl.
6. A lubricating composition, comprising jojobo oil and about 8% of a lithium soap.
7. A lubricating composition, comprising jojobo oil and suflicient lithium soap substantially to thicken said oil.
- CLARENCE E. EARLE.
US364247A 1940-04-05 1940-11-04 Lubricant containing a lithium compound Expired - Lifetime US2274674A (en)

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US328095A US2274673A (en) 1940-04-05 1940-04-05 Lubricating composition
US364247A US2274674A (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

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420902A (en) * 1943-12-08 1947-05-20 Standard Oil Dev Co Lubricating composition
US2446177A (en) * 1945-06-21 1948-08-03 George M Hain Silicone grease and method of preparation
US2451895A (en) * 1946-06-08 1948-10-19 Shell Dev Synthetic grease
US2460126A (en) * 1945-10-23 1949-01-25 Gen Electric Insulating and dielectric compositions
US3123560A (en) * 1964-03-03 Table ix

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123560A (en) * 1964-03-03 Table ix
US2420902A (en) * 1943-12-08 1947-05-20 Standard Oil Dev Co Lubricating composition
US2446177A (en) * 1945-06-21 1948-08-03 George M Hain Silicone grease and method of preparation
US2460126A (en) * 1945-10-23 1949-01-25 Gen Electric Insulating and dielectric compositions
US2451895A (en) * 1946-06-08 1948-10-19 Shell Dev Synthetic grease

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