US3923669A - Antiwear hydraulic oil - Google Patents
Antiwear hydraulic oil Download PDFInfo
- Publication number
- US3923669A US3923669A US519728A US51972874A US3923669A US 3923669 A US3923669 A US 3923669A US 519728 A US519728 A US 519728A US 51972874 A US51972874 A US 51972874A US 3923669 A US3923669 A US 3923669A
- Authority
- US
- United States
- Prior art keywords
- composition
- oil
- zinc
- metal
- hydraulic oil
- 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
Links
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
- 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
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M129/38—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms
- C10M129/42—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms polycarboxylic
-
- 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
- C10M133/22—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms containing a carbon-to-nitrogen double bond, e.g. guanidines, hydrazones, semicarbazones
-
- 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
- C10M133/38—Heterocyclic nitrogen compounds
- C10M133/44—Five-membered ring containing nitrogen and carbon 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
- 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
-
- 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
- C10M137/10—Thio derivatives
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
- C10M2207/123—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms polycarboxylic
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/127—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids polycarboxylic
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/22—Acids obtained from polymerised unsaturated 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
-
- 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
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
-
- 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
- C10M2215/14—Containing carbon-to-nitrogen double bounds, e.g. guanidines, hydrazones, semicarbazones
-
- 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
- C10M2215/22—Heterocyclic nitrogen compounds
-
- 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
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/221—Six-membered rings containing nitrogen and carbon 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
-
- 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
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
- C10M2215/226—Morpholines
-
- 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
- C10M2215/30—Heterocyclic compounds
-
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
-
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
-
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
-
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/102—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon only in the ring
-
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
-
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
- C10M2219/106—Thiadiazoles
-
- 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
- C10M2223/045—Metal containing thio derivatives
-
- 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
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/02—Unspecified siloxanes; Silicones
-
- 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
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/04—Groups 2 or 12
Definitions
- An improved antiwea'r hydraulic oil comprises major amounts of a mineral lubricating oil (preferably a hydrocracked oil which has been solvent extracted to improve ultra-violet light stability) and minor amounts of a secondary" zinc dialkyl dithiophosphate antiwear agent, chelating type and film forming type metal deactivators, a neutral barium salt of a petro leum sulfonate and a succinic acid based rust inhibitor.
- the hydraulic oil is especially useful in lubrication ofhigh output (e.g.. 100 gallons per minute) bronzeon-steel axial piston pumps.
- Zinc dithiophosphates are widely used in lubricants as anti-wear agents. Although ashless anti-wear materials have been gaining prominence because of the absence of heavy metals, the zinc dithiophosphates still continue to, provide one of the most economical sources of anti-wear protection. There are three general types of zinc dithiophosphates from which to select, depending on the specific application. The zincs are classified as either primary, secondary, or aryl, depending on the alcohols from which they are made, although the primary and secondary zincs are commonly referred to as alkyl.
- R-O- group in the structure for zinc dithiophosphate (shown below) is derived from a primary alcohol, then the zinc is referred to as primary; likewise, ifit is derived from a secondary alcohol, it is referred to as secondary and, if derived from an alkylated phenol, it is referred to as aryl.
- zincs are selected for a particular application.
- aryl zincs are used almost exclusively in diesel engine oils because of their excellent thermal stability.
- Primary zincs find a large application in both engine oils and hydraulic oils.
- Secondary zincs are used mostly in hydraulic oils, transmission and gear oils.
- Primary and secondary zincs have been selected forthese applications because of their relatively good anti-wear performance, good anti-oxidant qualities and low. cost. Where hydraulic oils are concemed, primary zincs have usually been preferred because they offered the best overall performance for the lowest cost.
- the present invention provides an anti-wear hydraulic oil containing a secondary zinc and which provides superior performance in vein pumps and piston pumps and especially with such bronze-on-steel pumps.
- An improved anti-wear hydraulic oil comprises major amounts of a mineral lubricating oil (preferably a hydrocracked oil which has been solvent extracted to improve ultra-violet light stability) and minor amounts of a secondary zinc dialkyl dithiophosphate anti-wear agent, chelating type and film forming type metal deactivators, a neutral barium salt of a petroleum sulfonate and a succinic acid based rust inhibitor.
- the hydraulic oil is especially useful in lubrication of high output (e.g., gallons per minute) bronze-on-steel axial piston pumps. 1
- the preferred mineral oils consist mainly of oils termed paraffinic or relatively paraffinic by the viscosity gravity constant classification. Especially useful are the stabilized, hydrocracked oils described in copending U.S. Pat. applications Ser. No. 178,193 filed Sept. 7,1971 and Ser. No. 298,126, filed Oct. 16, 1972 of Bryer et al. (the entire disclosure of which, and of Ser. No. 35,231 below is incorporated herein). Blends of such hydrocracked oils with a naphthenic acid-free naphthenic distillate can also be used on the present invention.
- the relative proportions of the essential ingredients are important.
- the weight ratio of the secondary zinc dialkyl dithiophosphate to the total weight of the deactivator compounds is generally no greater than about 15 to I (typically about 10 to l). l l
- the relative weight proportions of the succinic acid inhibitor and the neutral barium petroleum sulfonate are generally in the range of 3 to 1 to l to I (typically about 2 to l).
- the relative proportion ,of the neutral barium petroleum sulfonate to the total metal deactivators is also important (and is best determined by experiment) since if the relative amount of the barium compound is too great, the hydrolytic stability of the lubricant will be poor and high metal losses will be encountered in use in the pump.
- the other, the sludge and metal corrosion test also measures corrosiveness in terms of metal loss, but measures sludge produced as well.
- the sludge and metal corrosion test is a combination oxidation and corrosion test. This test is run using the same conditions as the 5 ASTM D 943 test. After a thousand hours, however, the test is terminated and the oil is analyzed for the total amount of sludge present, as well as the amounts of copper and iron present in the combined oil, water and sludge fractions.
- the low velocity friction apparatus is an instrument which measures friction characteristics as a function of sliding speed and applied load.
- a steel anulus is used which rotates on a steel plate. Both the anulus and plate are immersed in the test oil.
- a bronze anulus and a steel plate was used. In this case, testing was aimed at generating reaction products, rather than friction curves.
- the used oil was analyzed for copper content and also visually inspected.
- the primary zinc formulation showed a significant increase in copper content, indicating a substantial 35 amount of reaction products.
- the secondary zinc formulation showed little change. Even more dramatic was the difference in appearance of the two formulations at the end of the test. The primary zinc showed very severe accumulation of black reaction products; the secondary formulation remained clear.
- the beverage bottle hydrolytic stability test and the sludge and metal corrosion test have been adopted as part of the anti-wear hydraulic oil specification for the bronze-on-steel axial piston pumps by certain pump manufacturers and the Military under the MlL specification 24459.
- the hydrolytic stability test is an ASTM- established test and is found in the current ASTM handbook under ASTM D 2619-67. In the test, grams of the anti-wear hydraulic oil are added to 25 grams of distilled water in a beverage bottle containing a copper strip. The bottle is capped and placed in an oven where it rotates end over end at 5 rpm for 48 hours at 200F.
- the weight loss of the copper strip and the total acidity of the water layer are determined. They are considered a measure of the corrosiveness of the oil. Those anti-wear hydraulic oils which produce no more than 0.5 mg/cm of copper loss and no more than 6.0 mgKOH' total acidity in the water portion are considered satisfactory for bronze-on-steel piston pump use, provided, of course, that they also satisfy the other requirement--the sludge and metal corrosion test.
- This test is a combination oxidation and corrosion test. It is run using the same conditions as the more familiar ASTM D 943 Turbine Oil Oxidation Test. At the end of a 1000 hours, however, the oxidation test is terminated and the oil is analyzed for total sludge produced, as well as the copper and iron content of the combined oil, water, and sludge portions. Maximum acceptable limits for the test are:
- metal deactivators There are two common types of metal deactivators. One, the film-forming type, minimizes metal corrosion by plating out on the metal surface. In effect, this puts a protective barrier between the metal surface and the corrosive materials. The second type of deactivator reduces metal loss by chelating or tieing up the corrosive materials before they can catalyze further attack on the surfaces.
- the secondary zinc reference formulation performed satisfactorily in the axial piston pump because it is less reactive than the general purpose primary zinc tested. These, being more reactive,
- That rust inhibitors which are surface active enough to provide good rust protection can react with the secondary zinc to promote severe metal attack in the hydrolytic stability test.
- the presence of a combination type deactivator is not effective in these cases.
- the commercially available chelating type metal deactivators include Amoco (an alkyl derivative of 2,5-di-mercapto-l,3,4-thiadiazole) and the related compounds" in US. Pat. Nos. 2,719,125; 2,719,126 and 2,983,716.
- the commercially available film-forming type metal deactivators include the benzotriazoles (e.g., Vanderbilt BT Z and US. Rubber Company Cobrate 99), and the Vanderbilt products Cuvan 80" (N,N'- disalicylidene-l,2propane-diamine, 80% in organic solvent), Cuvan 7676 and Cuvan XL.
- benzotriazoles e.g., Vanderbilt BT Z and US. Rubber Company Cobrate 99
- Cuvan 80" N,N'- disalicylidene-l,2propane-diamine, 80% in organic solvent
- Cuvan 7676 and Cuvan XL.
- the commercially available neutral barium petroleum sulfonates include NaSul BSN of R. T. Vanderbilt Co.
- the commercially available acidic type rust inhibitors are primarily substituted-succinic anhydrides (e.g., TPSA or tetraphenyl succinic anhydride).
- the additive mixture was blended as indicated below to make an anti-wear hydraulic oil:
- the hydrocracked oil had an SUS viscosity at 100F of 200, an ASTM VI of about 100 and was paraffinic by VGC class.
- the properties (and typical control limits) of the blend (in metric units) follow:
- blends of hydrocracked and non-hydrocracked lubes can be used in the present example, as can unstabilized hydrocrac ked oils; however, in general the UV. stabilized (by solvent extraction or hydrorefining) hydrocracked lube provides the best performance at lower additive levels.
- blends (as of 100 and 500 SUS,- at 100F) of oils can be substituted for the 200 SUS base oil and higher or lower viscosity base oils (e.g., 80-2000SUS) can be used, as in this example, to make hydraulic oils of varied viscosities.
- higher or lower viscosity base oils e.g. 80-2000SUS
- the type and amount of ZDP can vary from brand to brand of additive; however, in a given lubricant formulation, the amount of a given ZDP can be determined by calculation from the zinc content. As a rule of thumb, such substitutions are done by the zinc equivalent method. In the above example,'the amount of additive should incorporated in the range of 0.044 to 0.054 Zn (typically 0.048 wt. In the work reported in the Tables, the ZDP additives were used at about the same Zn levels.
- the representative secondary ZDP, Lubrizol 677A (sometimes identified as D) analyzes 9.25 wt. Zn and 8.5 wt. P.
- compositions according to the present invention can be made wherein the viscosity of the base petroleum oil is in the range of 3,000 SUS at 100F.
- the typical base oil viscosity will be below 1,000 SUS at 100F.; however, lubricants consisting essentially of a 1,000-3,000 SUS at 100F base oil are useful as gear lubricants (e.g., see Ser. No. 477,872, filed June 10, 1974, of Williams, Reiland and Griffity, the entire disclosure of which is incorporated herein).
- compatible amount and mutually compatible amounts as used herein mean that no precipitate is observed in the final lubricant when it is stored for 24 hours at about F. 1
- Table I1 COMPARISON OF THE HYDROLYTIC STABILITY OF ZDP LUBRlCANTS Maximum Acceptable Primary Formulations Secondary Formulation Test Limits (A) (B) (C) (D) (E) Beverage Bottle Hydrolytic Stability Test, ASTM D 2619 CopperWeight Loss,
- the lubricants of this Table (11) are fully formulated anti-wear'hydraulic oils, similar to Table 1. containing, in addition to ZDP (0.5 vol. 7: antioxidant, rust inhibitor, and defoamer.
- a composition useful as an anti-wear hydraulic oil or as a gear lubricant, comprising major amounts of a mineral lubricating oil and minor, effective and mutually compatible amounts of a secondary zinc dialkyl dithiophosphate anti-wear agent, chelating type and film forming type metal deactivators, and, as rust inhibitors, a neutral barium salt of a petroleum sulfonate and an alkyl or aryl substituted succinic acid or acid anhydride.
- composition of claim 1, wherein said mineral lubricating oil consists essentially of oil having an SUS viscosity at 100F. in the range of 60-3,000 SUS and a viscosity-gravity constant in the range of 0.7800.819.
- composition of claim 1 wherein said chelating type metal deactivator is an alkyl-substituted derivative of 2,5-di-mercapto-1,3,4-thiodiazole.
- composition of claim 1 wherein said filmforming type metal deactivator is N,N-disalicylidene- 1,2-propane-diamine.
- composition of claim 3 wherein said filmforming type metal deactivator is N,N-disalicylidene- 1,2-propane-diamine.
- composition of claim 1 wherein one said rust inhibitor is tetraphenyl succinic anhydride.
- composition of claim 7 wherein said lubricant is useful as a hydraulic oil and contains effective and compatible minor amounts of a naphthyl amine, zinc Dialkyldithiocarbamate and ditertiary butyl paracresol.
- composition of claim 8 wherein said base oil consists essentially of one or more hydrocracked oils having a viscosity gravity constant below about 0.80 and which have been stabilized against degradation by ultra violet light by extraction with an aromatic selective solvent.
- composition of claim 9 and containing an effective amount of an antifoaming agent.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
An improved antiwear hydraulic oil comprises major amounts of a mineral lubricating oil (preferably a hydrocracked oil which has been solvent extracted to improve ultra-violet light stability) and minor amounts of a ''''secondary'''' zinc dialkyl dithiophosphate antiwear agent, chelating type and film forming type metal deactivators, a neutral barium salt of a petroleum sulfonate and a succinic acid based rust inhibitor. The hydraulic oil is especially useful in lubrication of high output (e.g., 100 gallons per minute) bronze-on-steel axial piston pumps.
Description
United States Patent n 1 Newingham et al.
[4 1 Dec. 2, 1975 l l ANTIWEAR HYDRAULIC OIL [73] Assignee: Sun Oil Company of Pennsylvania, Philadelphia. Pa.
[221 Filed: Oct. 31, 1974 [21] Appl. No.: 519,728
[52] US. Cl. 252/32.7 E; 252/33; 252/75 [5]] Int. Cl. C10M 1/48; ClOM 3/42;C1OM 5/24; ClOM 7/46 [58] Field of Search 252/327 E, 33, 75
[56] References Cited UNITED STATES PATENTS 2,369 632 2/l945 Cook ct al 252/327 E $640,872 2/1972 Wiley ct al. 252/327 E 3,652,4l0 3/1972 Hollingshurst et al. 252/327 E Foncher ct al. 252/327 E Lyle ct a]. 252/327 E Primary ExaminerDelbert E. Gantz Assistant Examinerl. Vaughn Attorney, Agent, or Firm-George L. Church; J. Edward Hess; Barry A. Bisson [57] ABSTRACT An improved antiwea'r hydraulic oil comprises major amounts of a mineral lubricating oil (preferably a hydrocracked oil which has been solvent extracted to improve ultra-violet light stability) and minor amounts of a secondary" zinc dialkyl dithiophosphate antiwear agent, chelating type and film forming type metal deactivators, a neutral barium salt of a petro leum sulfonate and a succinic acid based rust inhibitor. The hydraulic oil is especially useful in lubrication ofhigh output (e.g.. 100 gallons per minute) bronzeon-steel axial piston pumps.
10 Claims, No Drawings ANTIWEAVR HYDRAULIC 01 BACKGROUND OF THE INVENTION Zinc dithiophosphates are widely used in lubricants as anti-wear agents. Although ashless anti-wear materials have been gaining prominence because of the absence of heavy metals, the zinc dithiophosphates still continue to, provide one of the most economical sources of anti-wear protection. There are three general types of zinc dithiophosphates from which to select, depending on the specific application. The zincs are classified as either primary, secondary, or aryl, depending on the alcohols from which they are made, although the primary and secondary zincs are commonly referred to as alkyl. If the R-O- group in the structure for zinc dithiophosphate (shown below) is derived from a primary alcohol, then the zinc is referred to as primary; likewise, ifit is derived from a secondary alcohol, it is referred to as secondary and, if derived from an alkylated phenol, it is referred to as aryl.
Each of these zincs usually displays a different combination of performance properties as summarized below:
Performance Type of Zinc Dithiophosphate Characteristic Primary Secondary Aryl Wear Protection Ave rage Best Poorest Oxidation Inhibition Average Best Poorest Thermal Stability Average Poorest Best Demulsibility Best Average Poorest- Cost Lowest Average Highest Based on their relative performance levels, zincs are selected for a particular application. For example, aryl zincs are used almost exclusively in diesel engine oils because of their excellent thermal stability. Primary zincs find a large application in both engine oils and hydraulic oils. Secondary zincs are used mostly in hydraulic oils, transmission and gear oils. Primary and secondary zincs have been selected forthese applications because of their relatively good anti-wear performance, good anti-oxidant qualities and low. cost. Where hydraulic oils are concemed, primary zincs have usually been preferred because they offered the best overall performance for the lowest cost.
However, problems have been encountered when primary zincs are used in certain axial in-line piston pumps. in these pumps, the bronze piston pads slide on 2 a steel swash plate. With certain zinc-containing antiwear hydraulic oils, a reaction occurred at the interface of the bronze piston pads and the steel swash plate. The reaction products raised the friction level between the sliding surfaces and eventually generated enough heat to crack the swash plate.
The present invention provides an anti-wear hydraulic oil containing a secondary zinc and which provides superior performance in vein pumps and piston pumps and especially with such bronze-on-steel pumps.
SUMMARY OF THE INVENTION An improved anti-wear hydraulic oil comprises major amounts of a mineral lubricating oil (preferably a hydrocracked oil which has been solvent extracted to improve ultra-violet light stability) and minor amounts of a secondary zinc dialkyl dithiophosphate anti-wear agent, chelating type and film forming type metal deactivators, a neutral barium salt of a petroleum sulfonate and a succinic acid based rust inhibitor. The hydraulic oil is especially useful in lubrication of high output (e.g., gallons per minute) bronze-on-steel axial piston pumps. 1
The preferred mineral oils consist mainly of oils termed paraffinic or relatively paraffinic by the viscosity gravity constant classification. Especially useful are the stabilized, hydrocracked oils described in copending U.S. Pat. applications Ser. No. 178,193 filed Sept. 7,1971 and Ser. No. 298,126, filed Oct. 16, 1972 of Bryer et al. (the entire disclosure of which, and of Ser. No. 35,231 below is incorporated herein). Blends of such hydrocracked oils with a naphthenic acid-free naphthenic distillate can also be used on the present invention. The polymer and .soap type antileak hydraulic oils shown in Ser. No. 35,231 of Griffith et al. (filed May 6, 1970 and now abandoned) can also be made containing the secondary zinc dialkyl dithiophosphates, for anti-wear, if the two types of metal deactivator, a neutral barium sulfonate and a succinic acid type rust inhibitor are included therewith.
The relative proportions of the essential ingredients are important. The weight ratio of the secondary zinc dialkyl dithiophosphate to the total weight of the deactivator compounds is generally no greater than about 15 to I (typically about 10 to l). l l
The relative weight proportions of the succinic acid inhibitor and the neutral barium petroleum sulfonate are generally in the range of 3 to 1 to l to I (typically about 2 to l). The relative proportion ,of the neutral barium petroleum sulfonate to the total metal deactivators is also important (and is best determined by experiment) since if the relative amount of the barium compound is too great, the hydrolytic stability of the lubricant will be poor and high metal losses will be encountered in use in the pump.
FURTHER DESCRIPTION To predict which kinds of zinc dithiophosphates would cause swash plate cracking two test procedures are useful. One the beverage bottle hydrolytic stability test, measures thecorrosive nature of the zinc-containing hydraulic oil in terms of metal loss and total acidity. This test, as described in the ASTM handbook, also calls for the amount of insolubles produced, the viscosity change of the oil, and the acid number of the oil. For this particular hydraulic oil problem, however, these data are notpertinent.
The other, the sludge and metal corrosion test, also measures corrosiveness in terms of metal loss, but measures sludge produced as well. The sludge and metal corrosion test is a combination oxidation and corrosion test. This test is run using the same conditions as the 5 ASTM D 943 test. After a thousand hours, however, the test is terminated and the oil is analyzed for the total amount of sludge present, as well as the amounts of copper and iron present in the combined oil, water and sludge fractions.
Before the beverage bottle hydrolytic stability test and the sludge and metal corrosion tests were adopted to separate good and bad zinc-containing hydraulic oils, preliminary work was done using the low velocity friction apparatus to compare a secondary zinc formulation which performed satisfactorily in piston pump service with a primary zinc formulation which did not. This comparison gave the first indication that there might be a significant difference between primary and secondary zinc hydraulic oil formulations in lubrication of a bronze-steel piston pump.
The low velocity friction apparatus is an instrument which measures friction characteristics as a function of sliding speed and applied load. For most testing, a steel anulus is used which rotates on a steel plate. Both the anulus and plate are immersed in the test oil. To simulate the sliding conditions of the bronze-on-steel piston pump, however, a bronze anulus and a steel plate was used. In this case, testing was aimed at generating reaction products, rather than friction curves. At the end of the test the used oil was analyzed for copper content and also visually inspected. As shown by the results below, the primary zinc formulation showed a significant increase in copper content, indicating a substantial 35 amount of reaction products. The secondary zinc formulation, however, showed little change. Even more dramatic was the difference in appearance of the two formulations at the end of the test. The primary zinc showed very severe accumulation of black reaction products; the secondary formulation remained clear.
Low Velocity Friction Apparatus Test Oil Data Copper Content, ppm
Conditions: Bronze-on steel specimens. ZOOF, 80 lbs. load,
8 ft/minutes sliding speed. [7 hours.
These were fully formulated anti-wear hydraulic oils containing. in addition to zinc din" rust and The beverage bottle hydrolytic stability test and the sludge and metal corrosion test have been adopted as part of the anti-wear hydraulic oil specification for the bronze-on-steel axial piston pumps by certain pump manufacturers and the Military under the MlL specification 24459. The hydrolytic stability test is an ASTM- established test and is found in the current ASTM handbook under ASTM D 2619-67. In the test, grams of the anti-wear hydraulic oil are added to 25 grams of distilled water in a beverage bottle containing a copper strip. The bottle is capped and placed in an oven where it rotates end over end at 5 rpm for 48 hours at 200F. At the end of the test, the weight loss of the copper strip and the total acidity of the water layer are determined. They are considered a measure of the corrosiveness of the oil. Those anti-wear hydraulic oils which produce no more than 0.5 mg/cm of copper loss and no more than 6.0 mgKOH' total acidity in the water portion are considered satisfactory for bronze-on-steel piston pump use, provided, of course, that they also satisfy the other requirement--the sludge and metal corrosion test. This test is a combination oxidation and corrosion test. It is run using the same conditions as the more familiar ASTM D 943 Turbine Oil Oxidation Test. At the end of a 1000 hours, however, the oxidation test is terminated and the oil is analyzed for total sludge produced, as well as the copper and iron content of the combined oil, water, and sludge portions. Maximum acceptable limits for the test are:
Total insoluble sludge, mg 40f) Total Copper, mg 200 Total iron, mg
Complete description of the test is found under Federal Test Method 3,020.l.
With the results of the LVFA preliminary testing in mind, we evaluated the same primary zinc and secondary zinc formulations in the hydrolytic stability and sludge and metal corrosion tests. The results are shown in Table 1. Note the converse relationship between the two zincs in the two tests. The primary zinc-containing formulations shows relatively poor hydrolytic stability primarily because of high metal loss which we believe is the more crucial part of this test. It does, however, perform well in the sludge and metal corrosion test. The secondary zinc-containing formulation, on the other hand, performed in the opposite fashion. It did relatively well in hydrolytic stability, but poorly in sludge and metal corrosion test.
The poor hydrolytic stability of this particular general-purpose primary zinc was not unique. The hydrolytic stability of two other similar general-purpose primary zincs was examined and relatively high metal loss was found. These are identified as B and C in Table II. Also shown in Table II is a secondary zinc, E, which shows the same degree of metal loss as the general-purpose primaries, indicating that the relatively low metal loss of the secondary reference zinc was not characteristic of all secondary zincs.
One feature which these two tests do have in common is that they both measure metal loss. Both the primary and secondary zinc were showing metal loss, although in different forms. Howcver, we discovered that the combined use of two types of metal deactivators can minimize metal loss.
There are two common types of metal deactivators. One, the film-forming type, minimizes metal corrosion by plating out on the metal surface. In effect, this puts a protective barrier between the metal surface and the corrosive materials. The second type of deactivator reduces metal loss by chelating or tieing up the corrosive materials before they can catalyze further attack on the surfaces.
When the same primary and secondary zinc formulations as above are formulated using-various types of metal deactivators, the results are shown in Table Ill. Table III shows that 1. None of the deactivators improved the performance of the general-purpose primary zinc dithiophosphates sufficiently to pass the hydrolytic stability test.
2. Both the chelating and combination type of metal deactivators were effective enough on the secondary zinc formulation for it to pass the hydrolytic stability test. The improvement in minimizing metal loss was substantial. Although the chelating metal deactivator was more effective than the combination type in improving hydrolytic stability, it had been linked to compatibility problems in earlier work. Therefore, the combination type was preferred because of its better compatibility. As shown in Table IV, this deactivator was also effective in dramatically reducing the sludge and metal corrosion of the secondary zinc formulation.
These results show that the primary zinc should not be used in formulations where hydrolytic stability was required. The secondary zinc formulation was clearly superior. However, this lubricant is still defective and requires for satisfactory performance the surface active component, namely, two specific types of rust inhibitors.
Although the use of the two combined metal deactivators represents a major means of improving the hydrolytic stability of the secondary zinc formulation, a far more successful lubricant is obtained by the proper selection of rust inhibitors. The effect of various types of rust inhibitors on the secondary zinc in the presence .and absence of the combination type metal deactivator is shown in TableVl. Unlike the formulations shown in Table VI, these blends were not fully formulated, but contained only the components shown. Note that both the acidic and neutral type rust inhibitors which are surface active enough to provide adequate protection as measured by the ASTM D 665B test, also reacted with the zinc to promote severe metal attack in the hydrolytic stability test. The dibasic rust inhibitor which did not provide adequate rust protection, however, did not promote metal attack. The presence of the combination type metal deactivator did not substantially change these results. Where the deactivator did produce a significant change, however, was in the case of the mixed rust inhibitors which consisted of both acidic and neutral components used separately before. Without deactivator, metal attack occurred, but in the presence of deactivator, metal attack was reduced within the acceptable limits with no loss of rust protection. Obviously, the combination of the acidic and neutral components provides a balanced rust inhibitor which is surface active enough to protect against rust, but not active enough to overpower the metal deactivator.
With some commercially available secondary zinc dialkyl dithiophosphates, a precipitate or haze will form when an effective amount of the combination of the two types of metal deactivators is incorporated therein. For example, such a precipitate formed with E. This precipitate formation should be used as a screening test to determine the better secondary zincs" for use in the present invention.
Based on the results discussed above, it can be seen that the reactivity of zinc dithiophosphates, particularly in combination with other components, has a significant effect on the bronze/steel metallurgy found in some piston pumps. Specifically, these results indicate that:
l. The secondary zinc reference formulation performed satisfactorily in the axial piston pump because it is less reactive than the general purpose primary zinc tested. These, being more reactive,
6 are unsuited for use in bronze-on-steel axial piston pumps.
2. The film-forming, chelating, and combination types of deactivators were not effective in reducing metal loss in hydrolytic stability testing of the primary zinc examined. However, the chelating and combination type deactivators were effective in reducing metal loss of the secondary zinc formulation. i
3. That rust inhibitors which are surface active enough to provide good rust protection can react with the secondary zinc to promote severe metal attack in the hydrolytic stability test. The presence of a combination type deactivator is not effective in these cases.
4. That the use of a mixed acidic-neutral type rust inhibitor with the combination type metal deactivator provides adequate rust protection without promoting metal attack.
Commercially available primary zinc dialkyl dithiophosphates are well-known and include Amoco 5959, B 103 and Oronite 269N. Similarly, there are many commercially available secondary zinc dialkyl dithiophosphates, e.g., Lubrizol 677A" (the reference or D of the present case), Lubrizol i097, and Edwin Cooper Hitec E653 (identified as E herein).
The commercially available chelating type metal deactivators include Amoco (an alkyl derivative of 2,5-di-mercapto-l,3,4-thiadiazole) and the related compounds" in US. Pat. Nos. 2,719,125; 2,719,126 and 2,983,716.
The commercially available film-forming type metal deactivators include the benzotriazoles (e.g., Vanderbilt BT Z and US. Rubber Company Cobrate 99), and the Vanderbilt products Cuvan 80" (N,N'- disalicylidene-l,2propane-diamine, 80% in organic solvent), Cuvan 7676 and Cuvan XL.
The commercially available neutral barium petroleum sulfonates-include NaSul BSN of R. T. Vanderbilt Co.
The commercially available acidic type rust inhibitors are primarily substituted-succinic anhydrides (e.g., TPSA or tetraphenyl succinic anhydride).
Accordingly, the following example is illustrative of lubricants which can be produced in accordance with the present invention.
ILLUSTRATIVE EXAMPLE An additive mixture, for use in formulation of antiwear hydraulic oils containing a secondary dialkyl dithiophosphate, was made by blending the following ingredients:
Weight "71 ditertiary butyl paracresol 20.0 naphthyl amine 20.0 zinc diamyldithiocarbamate 3.0 tetraphenyl succinic anhydride 2.2 neutral barium petroleum sulfonate [.5 Amoco 150" chelate-type deactivator 3.3 Cuvan 80 film-forming deactivator 6.7 diluent. paraffinic oil 43.3
The additive mixture was blended as indicated below to make an anti-wear hydraulic oil:
COMPOSITION. VOLUME 71 UV stable hydrocracked oil 99.23 Secondary ZDP (D") 0.40 Additive mixture 0.35 Silicone antifoam 0.02
The hydrocracked oil had an SUS viscosity at 100F of 200, an ASTM VI of about 100 and was paraffinic by VGC class. The properties (and typical control limits) of the blend (in metric units) follow:
TYPICAL RANGE TESTS METHOD MlN. MAX. EXAM- PLE # Viscosity, cSt/37.8C D445 42.9 46.2 44.6 Viscosity, cSt/40C D341 40.2 Viscosity, cSt/98.9C D445 6.50 Viscosity, cSt/100C D341 6.33 Viscosity lndex D2270 100 106 Flash COC, C D92 204 235 #Pour, C D97 18 -18 Color D1500 2.0 0.5 Density/c, kg/m D1298 873 861 Total Acid No., mgKOH/g D664 1.0 Copper Strip, 3 hrs/100C D130 1 l Sulfur, D2622 0.14 Conradson Carbon, D189 0.25 An line Point, C D611 112 #Demu1sibi1ity/54.4C D 1401 Separation, minutes 30 25 #Foam, Tendency/Stability D892 Sequence 1, cm 50/0 25/0 Sequence 11, cm 50/0 25/0 Sequence 111, cm 50/0 25/0 #Rust, Syn. Sea Water D6658 Pass Pass Oxidation Stability, hr. D943 2000 2000 Continental Oxid.,hr. 100 100 4-Ball Wear Scar, mm kg, 1800 rpm, 54.4C, 0.35 1hr #Appearance Visual Bright Bright #Zinc, wt.% .044 .054 .048 Phosphorous, wt.% D 1091 .039 .051 .044 #DBPC, wt.% .070 .087 .077
When non-hydrocracked solvent refined paraffinic oils are substituted for the hydrocracked oil, 0.50% of the mixture is required for equivalent performance.
Similarly, blends of hydrocracked and non-hydrocracked lubes can be used in the present example, as can unstabilized hydrocrac ked oils; however, in general the UV. stabilized (by solvent extraction or hydrorefining) hydrocracked lube provides the best performance at lower additive levels.
Similarly, blends (as of 100 and 500 SUS,- at 100F) of oils can be substituted for the 200 SUS base oil and higher or lower viscosity base oils (e.g., 80-2000SUS) can be used, as in this example, to make hydraulic oils of varied viscosities.
In commercial additives, the type and amount of ZDP can vary from brand to brand of additive; however, in a given lubricant formulation, the amount of a given ZDP can be determined by calculation from the zinc content. As a rule of thumb, such substitutions are done by the zinc equivalent method. In the above example,'the amount of additive should incorporated in the range of 0.044 to 0.054 Zn (typically 0.048 wt. In the work reported in the Tables, the ZDP additives were used at about the same Zn levels. The representative secondary ZDP, Lubrizol 677A (sometimes identified as D) analyzes 9.25 wt. Zn and 8.5 wt. P.
Compositions according to the present invention can be made wherein the viscosity of the base petroleum oil is in the range of 3,000 SUS at 100F. In general, for use as a hydraulic oil the typical base oil viscosity will be below 1,000 SUS at 100F.; however, lubricants consisting essentially of a 1,000-3,000 SUS at 100F base oil are useful as gear lubricants (e.g., see Ser. No. 477,872, filed June 10, 1974, of Williams, Reiland and Griffity, the entire disclosure of which is incorporated herein).
The terms compatible amount and mutually compatible amounts as used herein mean that no precipitate is observed in the final lubricant when it is stored for 24 hours at about F. 1
Federal 3020.1 Results Sludge & Metal Corrosion Insoluble Sludge. mg 400 198 921 Metals in Combined Oil Water & Sludge Copper, mg 200 76 306 Iron, mg 13 341 Zinc dialkyldithiophosphate The base oil, in all tables herein, was 200 SUS, at 100F, U.V stabilized (by solvent extraction) hydrocracked oil (ASTM V1 about 100), available commercially as Sunpar LW or "HPO 200", from the Sun Oil Company. The lubricant contained 0.5 vol.
1 of the ZDP, 0.07 wt. ditertiary butyl paracresol, 0.07
wt. naphthalamine, 0.006 vol. NaSul BSN, 0.0088 vol. TPSA, 0.012 zinc Diamyldithiocarbamate (Vanlube AZ), and 2 ppm active silicon antitoam.
Table I1 COMPARISON OF THE HYDROLYTIC STABILITY OF ZDP LUBRlCANTS Maximum Acceptable Primary Formulations Secondary Formulation Test Limits (A) (B) (C) (D) (E) Beverage Bottle Hydrolytic Stability Test, ASTM D 2619 CopperWeight Loss,
mg/cm' 0.5 3.5 t 1.5 2.4 0.5 2.09 Total Acidity of Water Layer, mgKOH 6.0 6.2 33.0 2.5 8.9 1.20
The lubricants of this Table (11) are fully formulated anti-wear'hydraulic oils, similar to Table 1. containing, in addition to ZDP (0.5 vol. 7: antioxidant, rust inhibitor, and defoamer.
Table III EFFECT OF METAL DEACTIVATOR'S IN HYDROLYTIC STABILITY OF ZDP LUBRICANTS Combination of Maximum Film-Forming & Acceptable Film-Forming Type Chelating Type Chelating Types Test Limits Primary Secondary Primary Secondary Primary Secondary Beverage Bottle Hydrolytic Stability Test (ASTM D 2619) Fail Fail Fail Pass Fail Pass Copper Weight Loss.
mg/cm 0.5 0.61 i 0.33 2.59 0.0 4.25 0.03 Total Acidity of Water Layer. mgKOH 6.0 10.0 17.0 6.21 1.7 1.6 3.1 Formulations were similar to those of Table I.
Table IV EFFECT OF COMBINATION TYPE METAL DEACTIVATOR ON HYDROLYTIC STABILITY AND SLUDGE AND METAL CORROSION TESTS OF SECONDARY ZDP (D) Maximum Acceptable Deactivator Deactivator Test Method Limits Absent Present Beverage Bottle Hydrolytic ASTM Stability Test D 2619 Copper Wt. Loss, mg/cm 0.5 0.5 0.03 Total Acidity of Water Layer, mgKOH 6.0 8.9 3.1 Sludge and Metal Corrosion Federal 3020.1 Insoluble Sludge, mg 400 921 288 Metals in Combined Oil.
Water and Sludge Copper, mg 200 306 173 Iron. mg 100 341 57 Formulations similar to those of Table I.
Table V EFFECT OF METAL DEACTIVATORS 1N HYDROLYTIC STABILITY TESTING (2) (3) F ilm-Forming Type Chelating-Type Combination of (benzotriazole) (mercapto-thiodiazole) Film-Forming and Chelating Types Primary Secondary Primary Secondary Primary Secondary Metal Deactivator (A) (D) (A) (D) (A) (D) Beverage Bottle Hydrolytic Stability Test (ASTM D 2619) Fail Fail Fail Pass Fail Pass Copper Weight Loss.
E/ 0.61 0.33 2.59 0.0 4.25 0.03 Total Acidity of Water Layer. mgKOH 10.0 17.0 6.2 1.7 1.6 5.6
"R. T. Vanderbilt BTZ" "Amoco 150" il T. Vanderbilt OD 691" Formulations were similar to those of Table I Table VI EFFECT OF RUST INHIBITORS ON REFERENCE SECONDARY ZINC DITHIOPHOSPHATE Secondary Zinc Secondary Zinc Secondary Zinc Secondary Zinc Secondary Zinc without and TPSA" and Neutral Ba" and Dibasic Acid and Mixed Rust Inhibitor Rust Inhibitor Rust Inhibitor Rust Inhibitor Rust Inhibitor TBS! Metal Deactivator Metal Deactivator Metal Deactivator Metal Deactivator Metal Deactivator Hydrolytic Beverage Bottle Absent Present Absent Present Absent Present Absent Present Absent Present Stability Test (ASTM D 2619) Copper Weight Loss,
mg/cm 0.26 0.40 3.29 2.04 2.67 4.29 0.37 0.45 1.87 0.17 -Total Acidity of Water Layer. mgKOH 2186 1.80 11.78 14.0-1- 1.68 0.56 1.18 1.40 2.24 3.37 Rust Protection. Synthetic Sea Water (ASTM D 6658) Fail Fail Pass Pass Pass Pass Fail Fail Pass Pass Basic Formulation 0.40 vol. 7! zinc dithiophospbate in 200 SUS/100 F paraffinic base oil (solvenbcxtructed after hydrocracking) rust inhibitors. 0.10 volume 7:. Combination of acid 'I'PSA" and neutral "Ba" (barium petroleum sulfonate) rust inhibitors.
The invention claimed is:
l. A composition, useful as an anti-wear hydraulic oil or as a gear lubricant, comprising major amounts of a mineral lubricating oil and minor, effective and mutually compatible amounts of a secondary zinc dialkyl dithiophosphate anti-wear agent, chelating type and film forming type metal deactivators, and, as rust inhibitors, a neutral barium salt of a petroleum sulfonate and an alkyl or aryl substituted succinic acid or acid anhydride.
2. The composition of claim 1, wherein said mineral lubricating oil consists essentially of oil having an SUS viscosity at 100F. in the range of 60-3,000 SUS and a viscosity-gravity constant in the range of 0.7800.819.
3. The composition of claim 1, wherein said chelating type metal deactivator is an alkyl-substituted derivative of 2,5-di-mercapto-1,3,4-thiodiazole.
4. The composition of claim 1 wherein said filmforming type metal deactivator is N,N-disalicylidene- 1,2-propane-diamine.
5. The composition of claim 3 wherein said filmforming type metal deactivator is N,N-disalicylidene- 1,2-propane-diamine.
6. The composition of claim 1 wherein one said rust inhibitor is tetraphenyl succinic anhydride.
7. The composition of claim 5 and containing tetra phenyl succinic anhydride 8. The composition of claim 7 wherein said lubricant is useful as a hydraulic oil and contains effective and compatible minor amounts of a naphthyl amine, zinc Dialkyldithiocarbamate and ditertiary butyl paracresol.
9. The composition of claim 8 wherein said base oil consists essentially of one or more hydrocracked oils having a viscosity gravity constant below about 0.80 and which have been stabilized against degradation by ultra violet light by extraction with an aromatic selective solvent.
10. The composition of claim 9 and containing an effective amount of an antifoaming agent.
Claims (10)
1. A COMPOSITION, USEFUL AS AN ANTI-WEAR HYDRAULIC OIL OR AS A GEAR LUBRICANT, COMPRISING MAJOR AMOUNTS OF A MINERAL LUBRICATING OIL AND MINOR, EFFECTIVE AND MUTUALY COMPATIBLE AMOUNTS OF A SECONDARY ZINC DIALKYL DITHIOPHOSPHATE ANTI-WEAR AGENT, CHELATING TYPE AND FILM FORMING TYPE METAL DEACTIVATORS, AND, AS RUST INHIBITORS, A NEUTRAL BARIUM SALT OF A PETROLEUM SULFONATE AND AN ALKYL OR ARYL SUBATITUTED SUCCINE ACID OR ACID ANHYDRIDE.
2. The composition of claim 1, wherein said mineral lubricating oil consists essentially of oil having an SUS viscosity at 100*F. in the range of 60-3,000 SUS and a viscosity-gravity constant in the range of 0.780-0.819.
3. THE COMPOSITION OF CLAIM 1, WHEREIN SAID CHELATING TYPE METAL DEACTIVATOR IS AN ALKYL-SUBSTITUTED DERIVATIVE OF 2,5-DIMERCAPTO-1,3,4-THIODIAZOLE.
4. The composition of claim 1 wherein said film-forming type metal deactivator is N,N''-disalicylidene-1,2-propane-diamine.
5. The composition of claim 3 wherein said film-forming type metal deactivator is N,N''-disalicylidene-1,2-propane-diamine.
6. The composition of claim 1 wherein one said rust inhibitor is tetraphenyl succinic anhydride.
7. THE COMPOSITION OF CLAIM 5 AND CONTAINING TETRA PHENYL SUCCINIC ANHYDRIDE.
8. The composition of claim 7 wherein said lubricant is useful as a hydraulic oil and contains effective and compatible minor amounts of a naphthyl amine, zinc Dialkyldithiocarbamate and ditertiary butyl paracresol.
9. The composition of claim 8 wherein said base oil consists essentially of one or more hydrocracked oils having a viscosity gravity constant below about 0.80 and which have been stabilized against degradation by ultra violet light by extraction with an aromatic selective solvent.
10. The composition of claim 9 and containing an effective amount of an antifoaming agent.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US519728A US3923669A (en) | 1974-10-31 | 1974-10-31 | Antiwear hydraulic oil |
CA235,238A CA1063590A (en) | 1974-10-31 | 1975-09-11 | Antiwear hydraulic oil |
NL7512138A NL7512138A (en) | 1974-10-31 | 1975-10-16 | PROCESS FOR PREPARING AN AGAINST WEAR PROTECTIVE HYDRAULIC OR GEAR OIL. |
JP50125477A JPS5165104A (en) | 1974-10-31 | 1975-10-20 | |
DE19752547793 DE2547793A1 (en) | 1974-10-31 | 1975-10-24 | MINERAL OIL MIXTURE |
BE161397A BE835042A (en) | 1974-10-31 | 1975-10-30 | ANTI-WEAR HYDRAULIC OIL |
IT28849/75A IT1044091B (en) | 1974-10-31 | 1975-10-30 | ANTI-WEAR HYDRAULIC OLIG |
FR7533364A FR2289600A1 (en) | 1974-10-31 | 1975-10-31 | ANTI-WEAR HYDRAULIC OIL |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US519728A US3923669A (en) | 1974-10-31 | 1974-10-31 | Antiwear hydraulic oil |
Publications (1)
Publication Number | Publication Date |
---|---|
US3923669A true US3923669A (en) | 1975-12-02 |
Family
ID=24069530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US519728A Expired - Lifetime US3923669A (en) | 1974-10-31 | 1974-10-31 | Antiwear hydraulic oil |
Country Status (8)
Country | Link |
---|---|
US (1) | US3923669A (en) |
JP (1) | JPS5165104A (en) |
BE (1) | BE835042A (en) |
CA (1) | CA1063590A (en) |
DE (1) | DE2547793A1 (en) |
FR (1) | FR2289600A1 (en) |
IT (1) | IT1044091B (en) |
NL (1) | NL7512138A (en) |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4035308A (en) * | 1975-08-21 | 1977-07-12 | Bray Oil Company | Monoalkyl benzene synthetic lubricant |
US4089791A (en) * | 1974-05-16 | 1978-05-16 | Texaco Inc. | Lubricating oil composition |
US4094800A (en) * | 1976-07-14 | 1978-06-13 | Standard Oil Company (Indiana) | Anti-wear lubricating oil compositions |
US4101428A (en) * | 1976-02-25 | 1978-07-18 | Chevron Research Company | Composition comprising a mixture of the zinc salts of O,O-di(primary and secondary) alkyldithiophosphoric acids |
US4617136A (en) * | 1985-08-16 | 1986-10-14 | R. T. Vanderbilt Company, Inc. | Dicocoamine derivatives of 2,5-dimercapto-1,3,4-thiadiazole |
US4689166A (en) * | 1986-07-17 | 1987-08-25 | Pennzoil Product Company | Succinic acid esters and hydraulic fluids thereform |
US4720555A (en) * | 1986-09-12 | 1988-01-19 | Pennzoil Products Company | Hydrocarbyl anhydrides |
US4764294A (en) * | 1986-02-24 | 1988-08-16 | Exxon Research And Engineering Company | Lubricating oil (PNE-500) |
US4784784A (en) * | 1986-07-17 | 1988-11-15 | Pennzoil Products Company | Succinic acid esters and hydraulic fluids therefrom |
WO1989004358A2 (en) * | 1987-11-05 | 1989-05-18 | The Lubrizol Corporation | Compositions and lubricants and functional fluids containing same |
US5094763A (en) * | 1989-02-10 | 1992-03-10 | Cosmo Oil Co., Ltd. | Hydraulic fluid composition for power steering containing a phosphorous compound and a thiadiazole derivative |
US5152908A (en) * | 1987-05-07 | 1992-10-06 | Tipton Craig D | Gear lubricant package containing a synergistic combination of components |
EP0528610A1 (en) * | 1991-08-09 | 1993-02-24 | Oronite Japan Limited | Low phosphorous engine oil composition and additive compositions |
EP0588561A1 (en) * | 1992-09-14 | 1994-03-23 | Oronite Japan Limited | Low phosphorous engine oil compositions and additive compositions |
US5346635A (en) * | 1993-06-03 | 1994-09-13 | Material Innovation, Inc. | Low and light ash oils |
WO1995010584A1 (en) * | 1993-10-12 | 1995-04-20 | Behrooz Khorramian | Low and light ash lubricating oils |
US5569405A (en) * | 1992-09-14 | 1996-10-29 | Chevron Chemical Company | Low phosphorous engine oil compositions and additive compositions |
US5849675A (en) * | 1997-04-10 | 1998-12-15 | Chevron Chemical Company | Hydraulic system using an improved antiwear hydraulic fluid |
US5885942A (en) * | 1997-09-23 | 1999-03-23 | Nch Corporation | Multifunctional lubricant additive |
EP0945499A1 (en) * | 1998-03-26 | 1999-09-29 | Chevron Chemical Company LLC | Lubricating oil compositions suitable for use in medium speed diesel engines |
US6046144A (en) * | 1997-06-02 | 2000-04-04 | R.T. Vanderbilt Co., Inc. | Combination of phosphate based additives and sulfonate salts for hydraulic fluids and lubricating compositions |
US6468946B2 (en) | 1998-07-06 | 2002-10-22 | The Lubrizol Corporation | Mixed phosphorus compounds and lubricants containing the same |
EP1391500A1 (en) * | 2002-08-21 | 2004-02-25 | Ethyl Corporation | Diesel engine lubricants |
US20040214729A1 (en) * | 2003-04-25 | 2004-10-28 | Buitrago Juan A. | Gear oil composition having improved copper corrosion properties |
US7056871B2 (en) | 2003-04-25 | 2006-06-06 | Chevron Oronite Company Llc | Lubricating oil composition which decreases copper corrosion and method of making same |
WO2008021901A3 (en) * | 2006-08-09 | 2008-04-17 | Chevron Oronite Co | A low phosphorus lubricating oil composition having lead corrosion control |
EP1191087B2 (en) † | 2000-09-22 | 2013-12-18 | Chevron Oronite Company LLC | Water containing functional fluids comprising an oil soluble dimercaptothiadiazle compound or derivative |
US9481841B2 (en) | 2004-12-09 | 2016-11-01 | The Lubrizol Corporation | Process of preparation of an additive and its use |
CN110305713A (en) * | 2019-07-10 | 2019-10-08 | 新乡市瑞丰新材料股份有限公司 | A kind of antiwear hydraulic oil complexing agent haveing excellent performance and preparation method |
CN111607454A (en) * | 2020-05-27 | 2020-09-01 | 中国石油化工股份有限公司 | Antirust guide rail oil composition, preparation method and application thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2369632A (en) * | 1941-11-13 | 1945-02-13 | American Cyanamid Co | Lubricating oils |
US3640872A (en) * | 1968-10-25 | 1972-02-08 | Texaco Inc | Automatic transmission fluid |
US3652410A (en) * | 1968-05-24 | 1972-03-28 | Mobil Oil Corp | Multifunctional lubricant additive compositions and lubricating oils containing |
US3732167A (en) * | 1970-12-24 | 1973-05-08 | Texaco Inc | Motor oil composition |
US3796662A (en) * | 1972-02-17 | 1974-03-12 | Chevron Res | Extended life functional fluid |
-
1974
- 1974-10-31 US US519728A patent/US3923669A/en not_active Expired - Lifetime
-
1975
- 1975-09-11 CA CA235,238A patent/CA1063590A/en not_active Expired
- 1975-10-16 NL NL7512138A patent/NL7512138A/en unknown
- 1975-10-20 JP JP50125477A patent/JPS5165104A/ja active Pending
- 1975-10-24 DE DE19752547793 patent/DE2547793A1/en active Pending
- 1975-10-30 BE BE161397A patent/BE835042A/en unknown
- 1975-10-30 IT IT28849/75A patent/IT1044091B/en active
- 1975-10-31 FR FR7533364A patent/FR2289600A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2369632A (en) * | 1941-11-13 | 1945-02-13 | American Cyanamid Co | Lubricating oils |
US3652410A (en) * | 1968-05-24 | 1972-03-28 | Mobil Oil Corp | Multifunctional lubricant additive compositions and lubricating oils containing |
US3640872A (en) * | 1968-10-25 | 1972-02-08 | Texaco Inc | Automatic transmission fluid |
US3732167A (en) * | 1970-12-24 | 1973-05-08 | Texaco Inc | Motor oil composition |
US3796662A (en) * | 1972-02-17 | 1974-03-12 | Chevron Res | Extended life functional fluid |
Cited By (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4089791A (en) * | 1974-05-16 | 1978-05-16 | Texaco Inc. | Lubricating oil composition |
US4035308A (en) * | 1975-08-21 | 1977-07-12 | Bray Oil Company | Monoalkyl benzene synthetic lubricant |
US4101428A (en) * | 1976-02-25 | 1978-07-18 | Chevron Research Company | Composition comprising a mixture of the zinc salts of O,O-di(primary and secondary) alkyldithiophosphoric acids |
US4094800A (en) * | 1976-07-14 | 1978-06-13 | Standard Oil Company (Indiana) | Anti-wear lubricating oil compositions |
US4617136A (en) * | 1985-08-16 | 1986-10-14 | R. T. Vanderbilt Company, Inc. | Dicocoamine derivatives of 2,5-dimercapto-1,3,4-thiadiazole |
US4764294A (en) * | 1986-02-24 | 1988-08-16 | Exxon Research And Engineering Company | Lubricating oil (PNE-500) |
US4689166A (en) * | 1986-07-17 | 1987-08-25 | Pennzoil Product Company | Succinic acid esters and hydraulic fluids thereform |
US4784784A (en) * | 1986-07-17 | 1988-11-15 | Pennzoil Products Company | Succinic acid esters and hydraulic fluids therefrom |
US4720555A (en) * | 1986-09-12 | 1988-01-19 | Pennzoil Products Company | Hydrocarbyl anhydrides |
US5152908A (en) * | 1987-05-07 | 1992-10-06 | Tipton Craig D | Gear lubricant package containing a synergistic combination of components |
WO1989004358A3 (en) * | 1987-11-05 | 1989-08-24 | Lubrizol Corp | Compositions and lubricants and functional fluids containing same |
AU615243B2 (en) * | 1987-11-05 | 1991-09-26 | Lubrizol Corporation, The | Compositions and lubricants and functional fluids containing same |
WO1989004358A2 (en) * | 1987-11-05 | 1989-05-18 | The Lubrizol Corporation | Compositions and lubricants and functional fluids containing same |
US5094763A (en) * | 1989-02-10 | 1992-03-10 | Cosmo Oil Co., Ltd. | Hydraulic fluid composition for power steering containing a phosphorous compound and a thiadiazole derivative |
US6531428B2 (en) | 1991-08-09 | 2003-03-11 | Chevron Oronite Company Llc | Low phosphorous engine oil composition and additive compositions |
EP0528610A1 (en) * | 1991-08-09 | 1993-02-24 | Oronite Japan Limited | Low phosphorous engine oil composition and additive compositions |
EP0588561A1 (en) * | 1992-09-14 | 1994-03-23 | Oronite Japan Limited | Low phosphorous engine oil compositions and additive compositions |
US5569405A (en) * | 1992-09-14 | 1996-10-29 | Chevron Chemical Company | Low phosphorous engine oil compositions and additive compositions |
US5346635A (en) * | 1993-06-03 | 1994-09-13 | Material Innovation, Inc. | Low and light ash oils |
US5439605A (en) * | 1993-06-03 | 1995-08-08 | Khorramian; Behrooz A. | Phosphorus and phosphours-free low and light ash lubricating oils |
WO1995010584A1 (en) * | 1993-10-12 | 1995-04-20 | Behrooz Khorramian | Low and light ash lubricating oils |
US5849675A (en) * | 1997-04-10 | 1998-12-15 | Chevron Chemical Company | Hydraulic system using an improved antiwear hydraulic fluid |
US6046144A (en) * | 1997-06-02 | 2000-04-04 | R.T. Vanderbilt Co., Inc. | Combination of phosphate based additives and sulfonate salts for hydraulic fluids and lubricating compositions |
US5885942A (en) * | 1997-09-23 | 1999-03-23 | Nch Corporation | Multifunctional lubricant additive |
EP0945499A1 (en) * | 1998-03-26 | 1999-09-29 | Chevron Chemical Company LLC | Lubricating oil compositions suitable for use in medium speed diesel engines |
US6468946B2 (en) | 1998-07-06 | 2002-10-22 | The Lubrizol Corporation | Mixed phosphorus compounds and lubricants containing the same |
EP1191087B2 (en) † | 2000-09-22 | 2013-12-18 | Chevron Oronite Company LLC | Water containing functional fluids comprising an oil soluble dimercaptothiadiazle compound or derivative |
CN1293172C (en) * | 2002-08-21 | 2007-01-03 | 乙基公司 | Lubricant for diesel engine |
EP1391500A1 (en) * | 2002-08-21 | 2004-02-25 | Ethyl Corporation | Diesel engine lubricants |
US20040038836A1 (en) * | 2002-08-21 | 2004-02-26 | Devlin Mark Thomas | Diesel engine lubricants |
US6767871B2 (en) | 2002-08-21 | 2004-07-27 | Ethyl Corporation | Diesel engine lubricants |
US8536102B2 (en) | 2003-04-25 | 2013-09-17 | Chevron Oronite Company Llc | Gear oil having low copper corrosion properties |
US20080300155A1 (en) * | 2003-04-25 | 2008-12-04 | Chevron Oronite Company, Llc | Gear oil having low copper corrosion properties |
US7871965B2 (en) | 2003-04-25 | 2011-01-18 | Chevron Oronite Company Llc | Gear oil having low copper corrosion properties |
US20110092401A1 (en) * | 2003-04-25 | 2011-04-21 | Buitrago Juan A | Gear oil having low copper corrosion properties |
US8389449B2 (en) | 2003-04-25 | 2013-03-05 | Chevron Oronite Company Llc | Gear oil having low copper corrosion properties |
US7056871B2 (en) | 2003-04-25 | 2006-06-06 | Chevron Oronite Company Llc | Lubricating oil composition which decreases copper corrosion and method of making same |
US20040214729A1 (en) * | 2003-04-25 | 2004-10-28 | Buitrago Juan A. | Gear oil composition having improved copper corrosion properties |
US9481841B2 (en) | 2004-12-09 | 2016-11-01 | The Lubrizol Corporation | Process of preparation of an additive and its use |
WO2008021901A3 (en) * | 2006-08-09 | 2008-04-17 | Chevron Oronite Co | A low phosphorus lubricating oil composition having lead corrosion control |
CN110305713A (en) * | 2019-07-10 | 2019-10-08 | 新乡市瑞丰新材料股份有限公司 | A kind of antiwear hydraulic oil complexing agent haveing excellent performance and preparation method |
CN111607454A (en) * | 2020-05-27 | 2020-09-01 | 中国石油化工股份有限公司 | Antirust guide rail oil composition, preparation method and application thereof |
Also Published As
Publication number | Publication date |
---|---|
DE2547793A1 (en) | 1976-05-06 |
IT1044091B (en) | 1980-03-20 |
FR2289600A1 (en) | 1976-05-28 |
CA1063590A (en) | 1979-10-02 |
JPS5165104A (en) | 1976-06-05 |
NL7512138A (en) | 1976-05-04 |
BE835042A (en) | 1976-04-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3923669A (en) | Antiwear hydraulic oil | |
EP0976813B1 (en) | Borate containing additive for manual transmission lubricant being stable to hydrolysis and providing high synchromesh durability | |
EP0092946B1 (en) | Glycerol esters with oil-soluble copper compounds as fuel economy additives | |
EP3434756B1 (en) | Lubricant oil composition and lubrication method | |
US11034908B2 (en) | Lubricant composition | |
US5281347A (en) | Lubricating composition for internal combustion engine | |
EP0142078A1 (en) | Metal working lubricant | |
JP3510630B2 (en) | Lubricating oil composition for high-speed gear | |
EP1746148A1 (en) | Crankcase lubricating oil composition for protection of silver bearings in locomotive diesel engines. | |
KR950001712B1 (en) | Lubricating oil composition | |
US20210292676A1 (en) | Lubricating oil compositions for automatic transmissions | |
JP2019085491A (en) | Lubricant composition | |
WO2010024170A1 (en) | Lubricant oil composition in contact with a silver-containing material | |
US11242893B2 (en) | Composition of high performance bearing oil for steel plants | |
US5133888A (en) | Cruise missile engine bearing grease | |
US20230287290A1 (en) | Lubricant composition for automotive transmission | |
EP0418860B1 (en) | Lubricating composition for internal combustion engine | |
WO1995015368A1 (en) | Lubrication oil composition | |
JP5945488B2 (en) | Gear oil composition | |
JP2018090828A (en) | Lubricating oil composition for protection of silver bearings in medium speed diesel engine | |
JP2019172729A (en) | Lubricant composition | |
EP1392804B1 (en) | Long-life lubricating oil with wear prevention capability | |
US3277003A (en) | Lubricating oils containing amine oxides | |
JP2020066668A (en) | Lubricant composition, mechanical apparatus with lubricant composition and manufacturing method of lubricant composition | |
CN113930271B (en) | Hydraulic guide rail oil and additive composition thereof |