WO1994019437A1 - Lubricant compositions containing complexes of alkoxylated amine, acid, and adenine - Google Patents
Lubricant compositions containing complexes of alkoxylated amine, acid, and adenine Download PDFInfo
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- WO1994019437A1 WO1994019437A1 PCT/EP1994/000522 EP9400522W WO9419437A1 WO 1994019437 A1 WO1994019437 A1 WO 1994019437A1 EP 9400522 W EP9400522 W EP 9400522W WO 9419437 A1 WO9419437 A1 WO 9419437A1
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- acid
- composition
- complex
- carbon atoms
- adenine
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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
- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium containing a sulfur-to-oxygen bond
- C10M135/10—Sulfonic acids or derivatives thereof
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- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/12—Thio-acids; Thiocyanates; Derivatives thereof
- C10M135/14—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond
- C10M135/16—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond thiourea type, i.e. containing the group
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- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/32—Heterocyclic sulfur, selenium or tellurium compounds
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- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
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- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
- C10M159/123—Reaction products obtained by phosphorus or phosphorus-containing compounds, e.g. P x S x with organic compounds
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/144—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings containing hydroxy groups
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- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
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- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
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- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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Definitions
- This invention relates to a composition of matter containing a complex being the reaction product of alkoxylated amine, acid and adenine and to an improved lubricating oil composition containing the reaction product and to the use of such complexes to reduce friction and/or improve fuel economy and/or inhibit copper corrosion in an internal combustion engine.
- U.S. Patent, 4,575,431 discloses a lubricating oil additive composition containing dihydrocarbyl hydrogen dithiophosphates and a sulfur-free of hydrocarbyl dihydrogen phosphates and dihydrocarbyl hydrogen phosphates, said composition being at least 50% neutralized by a hydrocarbyl amine having 10 to 30 carbons in said hydrocarbyl group.
- ZDDP zinc dialkyldithiophosphate
- Patent 4,089,790 discloses an extreme-pressure lubricating oil containing (1) hydrated potassium borate, (2) an antiwear agent selected from (a) ZDDP, (b) an ester, an amide or an amine salt of a dihydrocarbyl dithiophosphoric acid or (c) a zinc alkyl aryl sulfonate and (3) an oil-soluble organic sulfur compound.
- Oil formulations containing ZDDP require friction modifiers in order to reduce energy losses in overcoming friction. Such energy losses results in lower fuel economy.
- oil additive packages containing ZDDP have environmental drawbacks. ZDDP adds to engine deposits which can lead to increased oil consumption and emissions. Moreover, ZDDP is not ash-free.
- U.S. Patent No. 5,076,945 discloses a lubricating oil composition containing an amine salt of a dithiobenzoic acid.
- the amines used to prepare salts are long chain hydrocarbyl amines.
- U.S. Patents 3,849,319 and 3,951 ,973 describe lubricant compositions containing di- and tri(hydrocarbylammonium)trithiocyanurates.
- the hydrocarbyl radicals include alkyl, aralkyl, aryl, alkaryl and cycloalkyl and the examples are directed to alkylamines. These lubricant compositions were stated to have improved load-carrying properties.
- a lubricating oil additive which provides excellent antiwear, antioxidation, friction reducing, fuel economy and environmentally beneficial (less fuel, less phosphorus, i.e., less exhaust emissions) properties while. It is also desirable to find additives which inhibit copper corrosion. It would be a further benefit if these additives do not contribute phosphorous to the lubricating oil composition.
- This invention relates to a novel composition of matter containing alkoxylated amine, acid, and adenine. It also relates to an improved lubricating oil composition which reduces friction and/or improves fuel economy in an internal combustion engine and in some cases exhibit improved copper corrosion inhibition and/or antiwear and antioxidant properties.
- the present invention provides a composition of matter which comprises the reaction product of alkoxylated amine, acid and adenine wherein said reaction product is a complex having the following formula (I)
- Z is derived from either a hydrocarbylsalicylic acid, trithiocyanuric acid, a hydrocarbylsulfonic acid, a dihydrocarbyldithiophosphoric acid or a dihydrocarbyldithiobenzoic acid and wherein R is a hydrocarbyl group of 2 to 22 carbon atoms, Rl is hydrogen or a hydrocarbyl group of 1 to 20 carbon atoms, x and y are each independently integers of from 1 to 15 with the proviso that the sum of x + y is from 2 to 20, and a, b and c are independent numbers from 1.0 to 3.0 wherein the ratios of a:b, a:c and b:c range from 1.0:3.0 to 3.0:1.0.
- a lubricant composition comprising a major amount of a lubricating oil basestock and a minor amount of a complex having the formula (I).
- the present invention provides for the use of a complex having the formula (I) set forth above for inhibiting copper corrosion associated with the use of lubricating oil compositions in an internal combustion engine.
- the present invention provides for the use of a complex having the formula (I) set forth above for reducing friction and/or improving fuel economy in an internal combustion engine.
- the present invention also provides for the use of a complex having the formula (I) set forth above for reducing wear in an internal combustion engine.
- the lubricating oil will contain a major amount of a lubricating oil basestock.
- the lubricating oil basestocks are well known in the art and can be derived from natural lubricating oils, synthetic lubricating oils, or mixtures thereof.
- the lubricating oil basestock will have a kinematic viscosity ranging from about 5 to about 10,000 cSt at 40°C.
- Natural lubricating oils include animal oils, vegetable oils (e.g., castor oil and lard oil), petroleum oils, mineral oils, and oils derived from coal and shale.
- Synthetic oils include hydrocarbon oils and halo-substituted hydrocarbon oils such as polymerized and interpolymerized olefins, alkylbenzenes, polyphenyls, alkylated diphenyl ethers, alkylated diphenyl sulfides, as well as their derivatives, analogs, and homologues thereof, and the like.
- Synthetic lubricating oils also include alkylene oxide polymers, interpolymers, copolymers and derivatives thereof wherein the terminal hydroxyl groups have been modified by esterification, etherification, etc.
- Another suitable class of synthetic lubricating oils comprises the esters of dicarboxylic acids with a variety of alcohols. Esters useful as synthetic oils also include those made from C5 to C12 monocarboxylic acids and polyols and polyol ethers.
- Silicon-based oils (such as the polyalkyl-, polyaryl-, polyalkoxy-, or polyaryloxy-siloxane oils and silicate oils) comprise another useful class of synthetic lubricating oils.
- Other synthetic lubricating oils include liquid esters of phosphorus-containing acids, polymeric tetrahydrofurans, polyalphaolefins, and the like.
- the lubricating oil may be derived from unrefined, refined, rerefined oils, or mixtures thereof.
- Unrefined oils are obtained directly from a natural source or synthetic source (e.g., coal, shale, or tar sands bitumen) without further purification or treatment.
- Examples of unrefined oils include a shale oil obtained directly from a retorting operation, a petroleum oil obtained directly from distillation, or an ester oil obtained directly from an esterification process, each of which is then used without further treatment.
- Refined oils are similar to the unrefined oils except that refined oils have been treated in one or more purification steps to improve one or more properties.
- Suitable purification techniques include distillation, hydrotreating, dewaxing, solvent extraction, acid or base extraction, filtration, and percolation, all of which are known to those skilled in the art.
- Rerefined oils are obtained by treating refined oils in processes similar to those used to obtain the refined oils. These rerefined oils are also known as reclaimed or reprocessed oils and often are additionally processed by techniques for removal of spent additives and oil breakdown products.
- R is preferably a hydrocarbyl group of from 2 to 18 carbon atoms, especially 6 to 18 carbon atoms
- R 1 is preferably hydrogen or a hydrocarbyl group of from 1 to 16 carbon atoms, most preferably hydrogen.
- Such hydrocarbyl groups includes aliphatic (alkyl or alkenyl) and alicyclic groups.
- the aliphatic or alicyclic groups may be substituted with amino, hydroxy, mercapto and the like and may be interrupted by 0, S or N.
- the sum of x+y is preferably 2 to 15.
- the complexes of the present invention are prepared from the reaction of alkoxylated, preferably a propoxylated or ethoxylated, especially ethoxylated amines with acid and adenine.
- Adenines are commercially available or may be prepared by methods known in the art. Adenine may be purchased from Aldrich Chemical Company. Ethoxylated and/or propoxylated amines are commercially available from Sherex Chemicals under the trade name Varonic and from Akzo Corporation under the trade names Ethomeen®, Ethoduomeen® and Propomeen®.
- Examples of preferred amines include ethoxylated (5) cocoalkylami ⁇ e, ethoxylated (2) tallowalkylamine, ethoxylated (15) cocoalkylamine and ethoxylated (5) soyaalkylamine and ethoxylated (10) stearylamine. Propoxylated may be substituted for ethoxylated amines.
- the complexes of the present invention are the reaction product of:
- an acid being either a hydrocarbylsalicylic acid, trithiocyanuric acid, a hydrocarbylsulfonic acid, a dihydrocarbyldithiophosphoric acid or a dihydrocarbyldithiobenzoic acid, and (c) an adenine of the formula:
- Preferred hydrocarbylsalicylic acids used to react with alkoxylated amines and adenines to form the complexes of the present invention have the following formula:
- Rl is a hydrocarbyl group of from 2 to 30 carbon atoms preferably a hydrocarbyl group of from 2 to 26 carbon atoms.
- Such hydrocarbyl groups include aliphatic (alkyl or alkenyl) and alicyclic group.
- the aliphatic and alicyclic groups may be substituted with hydroxy, alkoxy, cyano, nitro, and the like and the alicyclic groups may contain 0, S, or N as hetero atoms.
- These substituted salicylic acids are commercially available or may be prepared by methods known in the art, e.g. U.S. Patent 5,023,366.
- Trithiocyanuric acid may exist in different tautomeric forms represented by formulas II, III or mixtures thereof:
- Trithiocyanuric acid is prepared by methods well known in the art. These methods involve the treatment of cyanuric chloride with sulfur nucleophiles according to the following reaction scheme:
- sulfur nucleophiles which may be employed in the above reaction scheme include sodium sulfide, thiourea and thioacetic acid.
- Preferred hydrocarbylsulfonic acids used to react with alkoxylated amines and adenines to form the complexes of the present invention have the following formula:
- R 1 is a hydrocarbyl group of from 2 to 30 carbon atoms preferably a hydrocarbyl group of from 2 to 26 carbon atoms.
- Such hydrocarbyl groups include aliphatic (alkyl or alkenyl) and alicyclic group.
- the aliphatic and alicyclic groups may be substituted with hydroxy, alkoxy, cyano, nitro, and the like and the alicyclic groups may contain 0, S, or N as hetero atoms.
- These sulfonic acids are commercially available or may be prepared by methods well known in the art.
- Preferred dihydrocarbyldithiophosphoric acids used to react with alkoxylated amines and adenines to form the complexes of the present invention have the following formula:
- R 2 and R3 are each independently hydrocarbyl groups having from 3 to 30 carbon atoms preferably 3 to 20 carbon atoms.
- Such hydrocarbyl groups include aliphatic (alkyl or alkenyl) and alicyclic group.
- the aliphatic and alicyclic groups may be substituted with hydroxy, alkoxy, cyano, nitro, and the like and the alicyclic groups may contain 0, S, or N as hetero atoms.
- Especially preferred dialkyldithiophosphoric acids are made from mixed (85%) 2-butyl alcohol and (15%) isooctyl alcohol (mixed primary and secondary alcohols). Dihydrocarbyldithiophosphoric acids may be purchased from Exxon Chemical Company
- Preferred dihydrocarbyldithiobenzoic acids used to react with alkoxylated amines and adenines to form the complexes of the present invention have the following formula:
- R 2 to R 6 are each preferably hydrogen; a hydrocarbyl group containing from 1 to 18 carbon atoms; or a hydroxy group with the proviso that at least one of R 2 to R 6 is a hydrocarbyl, preferably an alkyl group containing 1 to 18 carbon atoms, more preferably 1 to 6 carbon atoms.
- R ⁇ and R 5 are most preferably t-butyl groups and R ⁇ is preferably hydroxy.
- the sum of x + y is preferably 2 to 15.
- the hydrocarbyl groups include aliphatic (alkyl or alkenyl) and alicyclic groups which may be substituted by hydroxy, amino, cyano and the like and may be interrupted by O, S or N. Dithiobenzoic acids may be prepared from a phenol according to the following method. A Phenol of the formula:
- the resulting dithiobenzoic acid can be isolated by solvent extraction using, e.g. ether and the solvent evaporated.
- the complexes of the present invention are derived from a hydrocarbylsalicylic acid they are prepared by adding the salicylic acid to a mixture of adenine and alkoxylated amine. Because of the exothermic nature of the reaction, the reaction mixture should be stirred during addition of salicylic acid.
- the complexes of the present invention are derived from trithiocyanuric acid they are prepared by adding trithiocyanuric acid to a mixture of adenine and alkoxylated amine. Because of the exothermic nature of the reaction, the reaction mixture should be stirred during addition of trithiocyanuric acid.
- the amounts of reactants are approximately stoichiometic, although a slight excess of trithiocyanuric acid, which has three reactive hydrogens, may be employed.
- the complexes of the present invention are derived from a dihydrocarbyldithiobenzoic acid they are prepared as described below. This preparation is based on an approximate 1 :1 :1 mole ratio although this ratio may vary. About 10 to 20% of the required amount of alkoxylated amine (based on the thiobenzoic acid) is added to the dithiobenzoic acid with heating and stirring. Temperatures may range from about 25 to about 180°C. About 10 to 20% of the required amount of adenine is then added. This sequential addition process is repeated until the required amount (based on the above approximate 1 :1 :1 of amine:acid:adenine) is reached. A precipitate (polymeric and unidentified material) forms if this alternative additional procedure is not employed.
- the complexes of the present invention are derived from a hydrocarbylsulfonic acid they are prepared by adding the sulfonic acid to a mixture of adenine and alkoxylated amine. Because of the exothermic nature of the reaction, the reaction mixture should be stirred during addition of sulfonic acid.
- the complexes of the present invention are derived from a dihydrocarbyldithiophosphoric acid they are prepared as described below. This preparation is based on an approximate 1:1:1 mole ratio although this ratio may vary. About 10 to 20% of the required amount of alkoxylated amine (based on the phosphoric acid) is added to the dihydrocarbyldithiophosphoric acid with heating and stirring. Temperatures may range from about 25 to about 180°C. About 10 to 20% of the required amount of adenine is then added. This sequential addition process is repeated until the required stoichiometic amounts (1:1 :1 of amine :acid:adenine) is reached. A precipitate (polymeric and unidentified material) forms if this sequential addition procedure is not employed.
- the lubricant oil composition according to the invention comprises a major amount of lubricating oil basestock and a minor amount, of the alkoxylated amine:acid:adenine complex.
- the amount of complex will be from about 0.001 wt% to about 5 wt%, based on oil basestock.
- the amount of amine salt is from about 0.05 wt% to about 1.0 wt%.
- the concentration of the complex of general formula (I) mat typically range from 0.1 to 5 wt% based on oil and preferably from 0.5 to 1.5 wt%.
- the amount of complex is such that there is an effective amount to achieve one or more of improved fuel economy, reduced friction, inhibition of copper corrosion, antiwear properties and antioxidant properties when the lubricant oil composition is used in an internal combustion engine.
- additives known in the art may be added to the lubricating oil basestock.
- additives include dispersants, antiwear agents, antioxidants, rust inhibitors, other corrosion inhibitors, detergents, pour point depressants, extreme pressure additives, viscosity index improvers, other friction modifiers, hydrolytic stabilizers and the like. These additives are typically disclosed, for example, in “Lubricant Additives” by C. V. Smalhear and R. Kennedy Smith, 1967, pp. 1-11 and in U.S. Patent 4,105,571. "Lubricant Additives" by C. V. Smalhear and R. Kennedy Smith, 1967, pp. 1-11 and in U.S. Patent 4,105,571.
- the lubricating oil composition of this invention can be used in the lubrication system of essentially any internal combustion engine, including automobile and truck engines, two-cycle engines, aviation piston engines, marine and railroad engines, and the like. Also contemplated are lubricating oils for gas- fired engines, alcohol (e.g., methanol) powered engines, stationary powered engines, turbines, and the like.
- alcohol e.g., methanol
- This Example illustrates the preparation of a complex containing ethoxylated amine, trithiocyanuric acid and adenine according to the invention.
- 68 g of ethoxylated(5)cocoalkylamine and 13 g of adenine was heated to 70°C with stirring in a 3-neck round bottom flask fitted with a thermometer and a water cooled condenser.
- 14 g of trithiocyanuric acid was added gradually to the stirred amine solution. During addition, the temperature rose to 105°C due to an exothermic reaction between acid and amine adenine components. The reaction mixture was used without further purification.
- the complex containing ethoxylated amine, trithiocyanuric acid and adenine is an effective friction modifier as shown in this example.
- the Ball on Cylinder (BOC) friction tests were performed using the experimental procedure described by S. Jahanmir and M. Beltzer in ASLE Transaction, Vol. 29, No. 3, p. 425 (1985) using a force of 0.8 Newtons (1 Kg) applied to a 12.5 mm steel ball in contact with a rotating steel cylinder that has a 43.9 mm diameter.
- the cylinder rotates inside a cup containing a sufficient quantity of lubricating oil to cover 2 mm of the bottom of the cylinder.
- the cylinder was rotated at 0.25 RPM.
- the friction force was continuously monitored by means of a load transducer.
- S150N is a solvent extracted, dewaxed, hydrofined neutral lube base stock obtained from approved paraffinic crudes (viscosity, 32 cSt at 40°C, 150 Saybolt seconds)
- This Example illustrates the preparation of a complex containing an ethoxylated amine, alkylsalicylic acid and adenine according to the invention.
- 101 g of ethoxylated(5)cocoalkylamine and 4 g of adenine were heated to 80°C with stirring in a 3-neck round bottom flask fitted with a thermometer and a water cooled condenser.
- reaction mixture was added gradually to the stirred amine/adenine solution. During addition, the temperature rose to 104°C due to the exothermic reaction between acid and amine. The reaction mixture was maintained at 104°C for 1.5 hours and then cooled to room temperature. The reaction mixture was a complex according to the invention and was used without further purification.
- the complex containing ethoxylated amine, alkylsalicylic acid, adenine is an effective friction modifier as shown in this example.
- the Ball on Cylinder (BOC) friction tests were performed using the experimental procedure described in Example 2.
- Various amounts of complex prepared in Example 3 were added to solvent 150 N.
- the results of BOC friction tests are shown in Table 2. TABLE 2
- a solution of 3 g ethoxylated (5) cocoalkylamine was heated to 50-110°C with stirring.
- 0.5 g of 4-hydroxy-3,5-ditertiarybutyldithiobenzoic acid was then added to the heated and stirred solution following by 125 mg of adenine.
- This procedure of sequentially adding the dithiobenzoic and adenine was repeated until 2 g of the acid and 50 mg of adenine have been added to the solution.
- the sequential procedure was employed to prevent precipitation of by-product polymeric materials.
- Primene JMT is predominantly a C ⁇
- the adenine-containing complex achieves lower coefficient of friction than can be obtained from the comparable complex without adenine or a Primene JMT:DTB complex.
- This Example illustrates the preparation of a complex containing ethoxylated amine, alkylsulfonic acid and adenine according to the invention.
- 41 g of ethoxylated(2)ta!!owamine and 1 g of adenine were heated to 60°C with stirring in a 3-neck round bottom flask fitted with a thermometer and a water cooled condenser.
- the complex containing ethoxylated amine, alkylsulfonic acid and adenine is an effective friction modifier as shown in this example.
- This Example illustrates the preparation of the novel complex of the invention.
- a solution of 80 g of diisooctyldithiophosphoric acid was heated to 50- 100"C with stirring.
- 10 g of ethoxylated(5)cocoalkyiamine was then added to the heated and stirred solution followed by 1 g of adenine.
- This procedure of sequentially adding ethoxylated amine and adenine was repeated until 75 g of ethoxylated (5) cocoalkylamine and 7 g of adenine have been added to the solution.
- the sequential addition procedure was employed to prevent precipitation of byproduct.
- the complex was then collected on cooling and used without further purification.
- This Example illustrates the superior copper corrosion provided by the complex of the invention as prepared in Example 9.
- the test for copper corrosion were run as follows. Copper corrosion tests were based on AST D-2440. 25 g of oil sample is placed in a 0.5" test tube with 30 cm of copper wire coiled to 0.5" and stretched to a finished length of 2". The test tube is then heated at 110°C for 120 hours. Nitrogen is bubbled through the oil at 17 cc/min during the test period. A 5 g sample of oil is removed at the end of the test and analyzed for copper content. Results of the copper corrosion are shown in Table 5.
- DDP (secondary) contains a mixture of isobutyl (85%) and isooctyl (15%) as the alkyl component.
- Antiwear properties are measured by the four-ball wear test as follows.
- the Four Ball test used in described in detail in AST method D-2266. In this test, three balls are fixed in a lubricating cup and an upper rotating ball is pressed against the lower three balls.
- the test balls utilized were made of AISI 52100 steel with a hardness of 65 Rockwell C (840 Vickers) and a centerline roughness of 25 mm. Prior to the tests, the test cup, steel balls, and all holders were washed with 1 ,1 ,1 trichloroethane. The steel balls subsequently were washed with a laboratory detergent to remove any solvent residue, rinsed with water, and dried under nitrogen.
- the Four Ball wear tests were performed at 100°C, 60 kg load, and 1200 rpm for 45 minutes duration. After each test, the balls were washed and the Wear Scar Diameter (WSD) on the lower balls measured using an optical microscope. Using the WSD's, the wear volume (WV) was calculated from standard equations (see Wear Control Handbook, edited by M. B. Peterson and W. 0. Winer, p. 451 , American Society of Mechanical Engineers [1980]). The percent wear reduction (% WR) for each oil tested was then calculated using the following formula.
- S150 is a solvent extracted, dewaxed, hydrofined neutral lube base stock obtained from approved paraffinic crudes (viscosity, 32 cSt at 40°C, 150
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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)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69404447T DE69404447T2 (en) | 1993-02-22 | 1994-02-22 | LUBRICANT COMPOSITION CONTAINING COMPLEXES OF ALKOXYLATED AMINE, ACID AND ADENINE |
EP94909035A EP0684979B1 (en) | 1993-02-22 | 1994-02-22 | Lubricant compositions containing complexes of alkoxylated amine, acid, and adenine |
JP6518669A JPH09502422A (en) | 1993-02-22 | 1994-02-22 | Lubricant composition containing complex of alkoxylated amine, acid and adenine |
Applications Claiming Priority (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US021,291 | 1987-03-03 | ||
US021,503 | 1993-02-22 | ||
US021,506 | 1993-02-22 | ||
US08/021,291 US5290463A (en) | 1993-02-22 | 1993-02-22 | Lubricant composition containing complexes of alkoxylated amine, hydrocarbylsalicylic acid and adenine |
US08/021,506 US5266226A (en) | 1993-02-22 | 1993-02-22 | Ashless lube additives containing complexes of alkoxylated amine, dithiobenzoic acid and adenine (PNE-639) |
US021,288 | 1993-02-22 | ||
US021,296 | 1993-02-22 | ||
US08/021,296 US5308517A (en) | 1993-02-22 | 1993-02-22 | Ashless lube additives containing complexes of alkoxylated amines, dihydrocarbyldithiophosphoric acid, and adenine |
US08/021,288 US5290460A (en) | 1993-02-22 | 1993-02-22 | Lubricant composition containing complexes of alkoxylated amine, trithiocyanuric acid, and adenine |
US08/021,503 US5290462A (en) | 1993-02-22 | 1993-02-22 | Lubricant composition containing complexes of alkoxylated amine, hydrocarbylsulfonic acid and adenine |
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WO1994019437A1 true WO1994019437A1 (en) | 1994-09-01 |
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PCT/EP1994/000522 WO1994019437A1 (en) | 1993-02-22 | 1994-02-22 | Lubricant compositions containing complexes of alkoxylated amine, acid, and adenine |
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Country | Link |
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EP (1) | EP0684979B1 (en) |
JP (1) | JPH09502422A (en) |
CA (1) | CA2156606A1 (en) |
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WO (1) | WO1994019437A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007050351A1 (en) * | 2005-10-21 | 2007-05-03 | Exxonmobil Research And Engineering Company | Antiwear inhibiting and load enhancing additive combinations for lubricating oils |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3951973A (en) * | 1973-11-19 | 1976-04-20 | Texaco Inc. | Di and tri (hydrocarbylammonium) trithiocyanurate |
EP0069507A2 (en) * | 1981-07-02 | 1983-01-12 | Exxon Research And Engineering Company | Hydrocarbon compositions containing heteroaromatic nitrogen compounds |
EP0141643A2 (en) * | 1983-11-02 | 1985-05-15 | Exxon Research And Engineering Company | Lubricating oil with corrosion inhibitor |
US5076945A (en) * | 1990-09-14 | 1991-12-31 | Exxon Research And Engineering Company | Lubricating oil containing ashless non-phosphorus additive |
US5080813A (en) * | 1990-03-26 | 1992-01-14 | Ferro Corporation | Lubricant composition containing dialkyldithiophosphoric acid neutralized with alkoxylated aliphatic amines |
US5085793A (en) * | 1990-11-19 | 1992-02-04 | Texaco Chemical Company | Corrosion-inhibited antifreeze/coolant composition |
-
1994
- 1994-02-22 CA CA002156606A patent/CA2156606A1/en not_active Abandoned
- 1994-02-22 WO PCT/EP1994/000522 patent/WO1994019437A1/en active IP Right Grant
- 1994-02-22 DE DE69404447T patent/DE69404447T2/en not_active Expired - Fee Related
- 1994-02-22 JP JP6518669A patent/JPH09502422A/en active Pending
- 1994-02-22 EP EP94909035A patent/EP0684979B1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3951973A (en) * | 1973-11-19 | 1976-04-20 | Texaco Inc. | Di and tri (hydrocarbylammonium) trithiocyanurate |
EP0069507A2 (en) * | 1981-07-02 | 1983-01-12 | Exxon Research And Engineering Company | Hydrocarbon compositions containing heteroaromatic nitrogen compounds |
EP0141643A2 (en) * | 1983-11-02 | 1985-05-15 | Exxon Research And Engineering Company | Lubricating oil with corrosion inhibitor |
US5080813A (en) * | 1990-03-26 | 1992-01-14 | Ferro Corporation | Lubricant composition containing dialkyldithiophosphoric acid neutralized with alkoxylated aliphatic amines |
US5076945A (en) * | 1990-09-14 | 1991-12-31 | Exxon Research And Engineering Company | Lubricating oil containing ashless non-phosphorus additive |
US5085793A (en) * | 1990-11-19 | 1992-02-04 | Texaco Chemical Company | Corrosion-inhibited antifreeze/coolant composition |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007050351A1 (en) * | 2005-10-21 | 2007-05-03 | Exxonmobil Research And Engineering Company | Antiwear inhibiting and load enhancing additive combinations for lubricating oils |
Also Published As
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JPH09502422A (en) | 1997-03-11 |
EP0684979A1 (en) | 1995-12-06 |
DE69404447T2 (en) | 1998-01-15 |
CA2156606A1 (en) | 1994-09-01 |
EP0684979B1 (en) | 1997-07-23 |
DE69404447D1 (en) | 1997-08-28 |
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