US2187742A - Lubricant - Google Patents

Lubricant Download PDF

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Publication number
US2187742A
US2187742A US207508A US20750838A US2187742A US 2187742 A US2187742 A US 2187742A US 207508 A US207508 A US 207508A US 20750838 A US20750838 A US 20750838A US 2187742 A US2187742 A US 2187742A
Authority
US
United States
Prior art keywords
urethane
lubricant
oil
oiliness
hydrocarbon
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
Application number
US207508A
Inventor
James W Johnson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlantic Richfield Co
Original Assignee
Atlantic Refining Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Atlantic Refining Co filed Critical Atlantic Refining Co
Priority to US207508A priority Critical patent/US2187742A/en
Application granted granted Critical
Publication of US2187742A publication Critical patent/US2187742A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/16—Amides; Imides
    • C10M133/18—Amides; Imides of carbonic or haloformic acids
    • 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
    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • 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
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/10—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-containing compound
    • 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
    • C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2211/02—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen and halogen only
    • 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
    • C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2211/04—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen, halogen, and oxygen
    • C10M2211/044—Acids; Salts or esters thereof
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/10—Amides of carbonic or haloformic acids
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/041—Triaryl phosphates
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/042—Metal salts thereof
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/047—Thioderivatives not containing metallic elements

Definitions

  • 'I hepresent invention relates to improvements in lubricating oils and more particularly to a method for increasing their lubricity or oiliness.
  • urethanes which may be suitably employed are-methyl urethane, ethyl urethane, ethylene urethane, propyl urethane, butyl urethane, amyl urethane, allyl urethane, acetyl urethane, nitrosourethane, nitrosomethyl urethane, nitro urethane, methyl nitro urethane and the like.
  • the lubricant may contain a film strength addition agent such as tricresyl phosphate, since an unblended hydrocarbon lubricating oil will exhibit a marked improvement in oiliness simply upon the addition of a urethane or substituted urethane such as hereinbefore mentioned.
  • a film strength addition agent such as tricresyl phosphate
  • a urethane is to be understood to comprehend urethane and substituted urethanes, or mixture of two or more of them.
  • a lubricant comprising a hydrocarbon oil and a small amount of a urethane.
  • a lubricant comprising a hydrocarbon oil and less than substantially 1% by weight of a urethane.
  • a lubricant comprising a hydrocarbon oil and a small amount of an alkyl urethane.
  • a lubricant comprising a hydrocarbon oil and a small amount of ethyl urethane.
  • a lubricant comprising a hydrocarbon oil and a small amount of butyl urethane.
  • a lubricant comprising a hydrocarbon oil and a small amountof butyl ethyl imido dicarboxylate.

Landscapes

  • 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 Jim. 23, 1940 uui Eo STATES LUnmcAN'r James W. Johnson, Philadelphia} Pa., assignor The Atlantic Refining Company, Philadelphia, Pa., a corporation of Pennsylvania No Drawing. Application May 12, 10st, Serial No. 207,508
6 Claims.
'I hepresent invention relates to improvements in lubricating oils and more particularly to a method for increasing their lubricity or oiliness.
It has generally been known that the quality of a lubricating oil depends on some properties other than the viscosity of the hydrocarbon oil. This has been found to be particularly true when the'lubricant is used under conditions of thin film or boundary lubrication in which the layer of lubricating. oil between the rubbing surfaces is very thin. It has been found that some oils act as better lubricants than others under conditions of'boundary lubrication even though their viscosities at the temperature of useare substantially the same. The property of one oil which makes it a better lubricant than another under these conditions, particularly inlowering friction and/or wear, has beendesignated as oiliness,.
It is therefore an object of. this invention to increase the oiliness of paraflin base, mixed base and naphthene base lubricating oils by the additionthereto of a relatively small proportion of a material which is active to improve this property without objectionably afiectingother desirable properties thereof. More particularly, the presentinvention relates to the production of an improved lubricating oil of this type having increased oiliness" by the addition thereto of' a urethane. .By the term urethane is meant the esters of carbamic acid and substituted deriva tives thereof. I In accordance with my invention, a urethane or a mixture of urethanes is admixed with a lubricating oil in quantities of the order of 0.1%,
0.25%, 0.5% or 1% by weightor more, depending upon the degree of improvement desired. Among the urethanes which may be suitably employed are-methyl urethane, ethyl urethane, ethylene urethane, propyl urethane, butyl urethane, amyl urethane, allyl urethane, acetyl urethane, nitrosourethane, nitrosomethyl urethane, nitro urethane, methyl nitro urethane and the like.
In order te determine the effectiveness of the vurethanes as addition agents for improving the oiliness" of lubricatingoil. small quantities were added to a hydrocarbon oil having a Saybolt Universal viscosity of 376 seconds at 100 R, an A. P. I. gravity of 21.9", and containing 3% by volume of tricresyl phosphate. The latter material has little or no effect upon the ,oiliness" but functions to increase the film strength of the oil and permitfioiliness" tests to be carried on under heavier loads than the hydrocarbon lubricating oil. per se, is able to withstand. The determination of the oiliness" or lowering of the coemcient of friction was made in an Almen extreme pressure'lubricant testing machine at 200 R. P. M., the load being expressed in lbs/sq. in. projected bearing area and the oiliness as ameasure of the friction expressed in pound-feet torque.
' Load naming-5' Lubricant 10,000 15,000 20,000 22,000
1 LIL-Ft. Lit-rt. un. L L-Ft. Oil-+37 tricmsyl phosphate" 36 48 68 0il+3 o tricmsyl phosphate +1 urethane 28 38 49 53 0ii+ a tricresyl phosphate a u urothane 30 39 47 40 Oii+3% tricresyl h hate +0.5% butyl at yl mido di-earborylate 30 41 48 From the above table it will be seen that the addition or a urethane or substituted methane to .a lubricating oil improves the oi1iness" or reduces friction to a substantial extent. It is not necessary that the lubricant contain a film strength addition agent such as tricresyl phosphate, since an unblended hydrocarbon lubricating oil will exhibit a marked improvement in oiliness simply upon the addition of a urethane or substituted urethane such as hereinbefore mentioned. In the event that increased film strength is likewise desired, there may be added to the oil-urethane blend, a quantity of film strength agent such as aliphatic or aromatic phosphates, phosphites or thiophosphates, chlorinated esters or chlorinated hydrocarbons, or other known agents for improving film strength.
For brevity, in the appended claims, the term a urethane is to be understood to comprehend urethane and substituted urethanes, or mixture of two or more of them.
What I claim is:
1. A lubricant comprising a hydrocarbon oil and a small amount of a urethane.
\ 2. A lubricant comprising a hydrocarbon oil and less than substantially 1% by weight of a urethane. Y
3. A lubricant comprising a hydrocarbon oil and a small amount of an alkyl urethane.
4. A lubricant comprising a hydrocarbon oil and a small amount of ethyl urethane.
5. A lubricant comprising a hydrocarbon oil and a small amount of butyl urethane.
6. A lubricant comprising a hydrocarbon oil and a small amountof butyl ethyl imido dicarboxylate.
JAMES W. JOHNSON.
US207508A 1938-05-12 1938-05-12 Lubricant Expired - Lifetime US2187742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US207508A US2187742A (en) 1938-05-12 1938-05-12 Lubricant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US207508A US2187742A (en) 1938-05-12 1938-05-12 Lubricant

Publications (1)

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US2187742A true US2187742A (en) 1940-01-23

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2887452A (en) * 1956-12-11 1959-05-19 Texas Co Motor lubricating oil composition
US3096285A (en) * 1960-08-25 1963-07-02 Texaco Inc Urethane containing lubricant
US6461730B1 (en) * 1991-09-20 2002-10-08 Danfoss A/S Lubricant for wire used for forming the stator windings of an electrical refrigerating compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2887452A (en) * 1956-12-11 1959-05-19 Texas Co Motor lubricating oil composition
US3096285A (en) * 1960-08-25 1963-07-02 Texaco Inc Urethane containing lubricant
US6461730B1 (en) * 1991-09-20 2002-10-08 Danfoss A/S Lubricant for wire used for forming the stator windings of an electrical refrigerating compressor
US6562767B1 (en) * 1991-09-30 2003-05-13 Danfoss Compressors Gmbh Process for producing a lubricant coated laquered wire used for forming the stator winding of an electrical refrigerating compressor

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