Organic tungsten complexes

This invention relates to an organic tungsten complex prepared by providing a strongly acidic tungsten precursor having pH≦2.5, and either reacting the tungsten precursor with a nitrogenous base to form a tungsten salt intermediate having a pH ranging from ≧5 to ≦8.5, and further reacting the tungsten salt intermediate with a fatty acid derivative of an alcohol, wherein the fatty acid derivative of an alcohol contains at least one free hydroxyl group; or reacting the tungsten precursor with a fatty acid derivative of an alcohol, wherein the fatty acid derivative of an alcohol contains at least one free hydroxyl group and a nitrogenous base. Further, this invention relates to lubricating compositions containing the inventive tungsten complexes.

Compositions with Fast and Slow Release Components

The present invention relates to controlled release compositions that include: (a) a slow release component, comprising one or more performance additives in the form of a solid or semi-solid mass; and (b) a fast release component comprising (i) a matrix material and (ii) one or more additives that can be dissolved and/or dispersed into the matrix material as well as additive delivery systems and processes using such compositions, and which release one or more additives into a fluid.

Low-Ash Lubricating Oils for Diesel Engines

The lubricant for a sump-lubricated, compression-ignited engine may contain an amount of a C12-C24 carboxylic acid-based fuel additive or component obtained by migration from the fuel. Good lubricant performance is obtained by including in the lubricant a boron-containing additive in an amount to provide about 2 to about 500 ppm B to the lubricant, provided that the total sulfated ash level is less than 0.8 weight percent.

Synergistic mixture

A synergistic mixture comprising from 1 to 99.9% by weight of compounds having structural elements (I) in which the free valencies on the oxygen atom and on the nitrogen atom may be combined to form a five-, six- or seven-membered ring and the benzene ring may also bear substituents at one or more of the free positions, and from 0.1 to 99% by weight of sulfur-containing organic compounds with antioxidant action. This synergistic mixture is suitable as a stabilizer for stabilizing inanimate organic material, especially mineral oil products and fuels, against the action of light, oxygen and heat.

Glycerol-containing functional fluid

A functional fluid comprising a major amount of an oil of lubricating viscosity, and at least about 0.05 wt-% glycerol. A method of preparing a functional fluid comprising adding glycerol to a functional fluid, wherein the glycerol is not glycerol monooleate. A method of preparing an additive concentrate comprising adding glycerol to a diluent oil wherein the concentrate contains from about 1% to about 99% by weight of said diluent. A method of reducing wear comprising contacting a metal surface with a functional fluid comprising a major amount of an oil of lubricating viscosity and at least about 0.05 wt-% glycerol.

Lubricant composition comprising unhindered alkyl amines

A lubricant composition including a base oil and from 0.01 to 10 wt. % of an amine compound based on a total weight of the lubricant composition. The amine compound has the formula R 1 (R 2 )NH, where R 1 and R 2 are each independently straight or branched chain acyclic alkyl groups having from 1 to 20 carbon atoms. The alpha carbon of R 1 or R 2 is primary if R 1 or R 2 is an alkyl group having more than one carbon atom respectively. At least 90 wt. % of the amine compound remains unreacted in the lubricant composition based on a total weight of the amine compound prior to any reaction in the lubricant composition.

Synergistic Lubricating Oil Composition Containing Mixture of Antioxidants

Disclosed is a lubricating oil composition comprising an oil of lubricating viscosity and an oil soluble synergistic mixture of antioxidants, said mixture comprising: a) a hindered amine antioxidant according to formula (I) wherein each R 1 is independently selected from a substituted or unsubstituted, branched or linear, C 1 -C 20 hydrocarbyl group; R 2 is selected from the group consisting of a hydrogen atom or a, substituted or unsubstituted, branched or linear, C 1 -C 20 hydrocarbyl group; each R 3 is independently selected from the group consisting of a hydrogen atom or a, substituted or unsubstituted, branched or linear, C 1 -C 20 hydrocarbyl group; each R 4 is independently selected from the group consisting of a hydrogen atom or a, substituted or unsubstituted, branched or linear, C 1 -C 20 hydrocarbyl group; n is an integer from 1 to 4; and m is an integer from 1 to 5; and b) a molybdenum succinimide complex.

OIL ADDITIVE

Disclosed herein is an oil additive and combination oil product comprising an effective amount of the oil additive. The oil additive comprises a bismuth-containing premix, the bismuth-containing premix comprising bismuth trioxide and a carrier, and a boron-containing premix, the boron-containing premix comprising boric acid, a carrier, and an anionic surfactant. 1. An oil additive comprising:a bismuth-containing premix, the bismuth-containing premix comprising bismuth trioxide and a bismuth carrier,a boron-containing premix, the boron-containing premix comprising boric acid, a boron carrier, and an anionic surfactant, andoptionally a component selected from the group consisting of a shear stable polymer, a dispersing agent, a carboxylic acid for adjusting the total acid number, a glycol, and any combination thereof,{'sub': 6', '16, 'wherein the bismuth carrier comprises a linear or branched, saturated or unsaturated C-Ccarboxylic acid, a conjugate base thereof, or a combination thereof and'}{'sub': 8', '22, 'wherein the boron carrier comprises an alkanolamine, a linear or branched, saturated or unsaturated C-Ccarboxylic acid or a conjugate base thereof, an alkanolamide, or any combination thereof.'}2. The oil additive of claim 1 , wherein the bismuth carrier comprises a linear or branched claim 1 , saturated or unsaturated C-Ccarboxylic acid claim 1 , a conjugate base thereof claim 1 , or a combination thereof.3. The oil additive of claim 2 , wherein the boron carrier comprises an alkanolamine and a linear or branched claim 2 , saturated or unsaturated C-Ccarboxylic acid or a conjugate base thereof.4. The oil additive of claim 3 , wherein the alkanolamine comprises a monoalkanolamine.5. The oil additive of claim 1 , wherein the anionic surfactant comprises an alkylsulfonate claim 1 , an alkylarylsulfonate claim 1 , or the conjugate acid thereof.6. The oil additive of claim 1 , wherein the oil additive comprises the shear stable polymer.7. The oil additive of claim 6 ...

Lubricating oil composition for internal combustion engine

Provided is a lubricating oil composition for internal combustion engine, which further reduces the friction to exhibit excellent fuel efficiency performance. A lubricating oil composition for internal combustion engine, which contains (A) a lubricant base oil having a dynamic viscosity of 2.0 to mm 2 /s at 100° C., (B) a molybdenum-based friction modifier in an amount of 0.005 to 0.2% by mass, in terms of a molybdenum content, based on the mass of the composition, (C) a salicylate-based metal detergent in an amount of 0.01 to 1% by mass, in terms of a metal content, based on the mass of the composition, and (D) at least one compound selected from amino acids having an alkyl group, alkenyl group, or acyl group having 15 to 24 carbon atoms and/or derivatives thereof in an amount of 0.01 to 10% by mass.

Method Of Lubricating An Internal Combustion Engine

The invention provides a method of lubricating a compression-ignition internal combustion engine with a maximum laden mass over 2,700 kg comprising supplying to the engine a lubricating composition comprising: an oil of lubricating viscosity, a 300 TBN or higher alkaline earth metal sulphonate detergent having a metal ratio of 10 to 40, 0.1 wt % to 4 wt % of a borated polyisobutylene succinimide dispersant, wherein the polyisobutylene from which the borated polyisobutylene succinimide is derived has a number average molecular weight of 550 to 1150, and 0.1 wt % to 6 wt % of a polyisobutylene succinimide, wherein the polyisobutylene from which polyisobutylene succinimide is derived has a number average molecular weight of 1550 to 2500, 0 wt % to 0.2 wt % of a phenolic based detergent, wherein the total amount of soap delivered by the alkaline earth metal sulphonates (typically calcium sulphonate) is 0.4 to 1 wt % of the lubricating composition, and wherein the lubricating composition has a sulphated ash content of not more than 1.5 wt %.

Lubricants with Good TBN Retention

A lubricant composition containing a metal-containing detergent in an amount to provide at least about 2 TBN to the lubricant, and a dispersant comprising an oleophilic portion comprising at least about 40 carbon atoms and an acid-bearing portion, characterized in having a TAN:TBN ratio of at least about 0.8, exhibits good TBN retention.

MARINE DIESEL CYLINDER LUBRICANT OIL COMPOSITIONS

A marine diesel cylinder lubricating oil composition includes a major amount of an oil of lubricating viscosity. The lubricating oil composition further includes a non-sulfur containing aromatic amine. The marine diesel cylinder lubricating oil composition has a total base number (TBN) of about 5 to about 100 mg KOH/g. Furthermore, the contribution of the non-sulfur containing aromatic amine to the TBN of the marine diesel cylinder lubricant oil composition is greater than about 30%. 1. A marine diesel cylinder lubricating oil composition comprising:(a) a major amount of an oil of lubricating viscosity, and(b) a non-sulfur containing aromatic amine;wherein the marine diesel cylinder lubricating oil composition has a total base number (TBN) of about 5 to about 100 mg KOH/g; and further wherein the contribution of the non-sulfur containing aromatic amine to the TBN of the marine diesel cylinder lubricant oil composition is greater than about 30%.2. The marine diesel cylinder lubricant oil composition according to claim 1 , wherein the non-sulfur containing aromatic amine is selected from a diphenylamine claim 1 , a N-phenylnaphthylamine claim 1 , a dinaphthylamine claim 1 , or a phenylenediamine.3. The marine diesel cylinder lubricant oil composition according to claim 1 , wherein the non-sulfur containing aromatic amine consists essentially of a diphenylamine.4. The marine diesel cylinder lubricant oil composition according to claim 3 , wherein the diphenylamine is selected from diphenylamine claim 3 , N-methyldiphenylamine claim 3 , 4-butyldiphenylamine claim 3 , 4 claim 3 ,4′-dibutyldiphenylamine claim 3 , 4-hexyldiphenylamine claim 3 , 4 claim 3 ,4′-dihexyldiphenylamine claim 3 , 4-heptyldiphenylamine claim 3 , 4 claim 3 ,4′-diheptyldiphenylamine claim 3 , 4-octyidiphenylamine claim 3 , 4 claim 3 ,4′-dioctyldiphenylamine claim 3 , 4-nonyldiphenylamine claim 3 , 4 claim 3 ,4′-dinonyldiphenylamine claim 3 , or 4-tetradecyldiphenylamine claim 3 , 4 claim 3 ,4′- ...

Stabilized blends containing friction modifiers

The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and friction modifiers that contain one or more amide functional groups, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.

LIQUID ASHLESS ANTIOXIDANT ADDITIVE FOR LUBRICATING COMPOSITIONS

A lubricating composition comprising at least 90% by weight of a base oil, and an antioxidant composition comprising the components, set forth as weight % of the lubricating composition: 2. The composition of claim 1 , wherein each component is present at the following weight ratios (1):(2):(3) being about 1-8:1-8:1-8.3. The composition of claim 1 , wherein each component is present at the following weight ratios (1):(2):(3) being about 1-2:0.125-1:1-2.4. The composition of claim 1 , wherein component (1) is octylated phenyl-α-naphthylamine claim 1 , and component (2) is octylated diphenylamine derivative of tolutriazole.5. A lubricating composition comprising at least 90% by weight of a lubricant base claim 1 , and a liquid antioxidant composition comprising the components claim 1 , set forth as weight % of the lubricating composition:(1) solid alkylated-phenyl-α-naphthylamine at 0.01-1.0%,(2) an alkylated diphenylamine derivative of triazole, tolutriazole or benzotriazole, at 0.01-0.50%, and(3) methylenebis(di-n-butyldithiocarbamate), at 0.01-1.0%.6. The lubricating composition of claim 5 , comprising:(1) solid alkylated-phenyl-α-naphthylamine at 0.10-0.50%,(2) an alkylated diphenylamine derivative of triazole, tolutriazole or benzotriazole, at 0.01-0.30% and(3) methylenebis(di-n-butyldithiocarbamate), at 0.10-0.50%7. The lubricating composition of claim 6 , comprising:(1) solid alkylated-phenyl-α-naphthylamine at 0.15-0.30%,(2) an alkylated diphenylamine derivative of triazole, tolutriazole or benzotriazole, at 0.01-0.15%, and(3) methylenebis(di-n-butyldithiocarbamate), at 0.15-0.30%.8. The lubricating composition of claim 5 , wherein component (1) is octylated phenyl-α-napthylamine claim 5 , and component (2) is octylated diphenylamine derivative of tolutriazole.9. The lubricating composition of claim 6 , wherein component (1) is octylated phenyl-α-napthylamine claim 6 , and component (2) is octylated diphenylamine derivative of tolutriazole.10. The lubricating ...

Lubricant Compositions For Direct Injection Engines

The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and a metal overbased detergent. The metal overbased detergent may be selected from sulfonate detergents, phenate detergents, and salicylate detergents, especially sulfonate detergents with a metal ratio of at least 5. 1. A lubricant composition comprising:(a) a base oil of lubricating viscosity;(b) a magnesium sulfonate overbased detergent in an amount to provide at least 500 ppm magnesium from the magnesium sulfonate overbased detergent to the lubricating composition;(c) a calcium sulfonate overbased detergent in an amount to provide at least 1,000 ppm from the calcium sulfonate overbased detergent to the lubricating composition; and(d) 0.5 to 0.9 wt. % of a zinc dialkyldithiophosphate anti-wear additive, wherein the magnesium sulfonate overbased detergent and the calcium sulfonate overbased detergent collectively contribute up to about 0.8 weight percent of sulfated ash to the lubricating composition and wherein the lubricating composition has a phosphorus content of 0.12 wt. % or less and total sulfated ash of 1.1% or less.2. The composition of claim 1 , wherein the one or more additional additives is selected from an ashless dispersant claim 1 , an ashless antioxidant claim 1 , a friction modifier claim 1 , and a polymeric viscosity modifier.3. The composition of claim 1 , wherein the magnesium overbased detergent has a metal ratio of 5 to 30.4. The composition of claim 1 , wherein the one or more additional additives includes a polyalkenyl succinimide dispersant in an amount from 0.5 to 4 weight % of the lubricating composition.5. The composition of claim 1 , wherein the one or more additional additives includes a boron post-treated polyalkenyl succinimide dispersant.6. The composition of claim 1 , wherein the one or more ...

Lubricating oil composition for automatic transmission

A lubricating oil composition provides enhanced anti-wear and anti-seizure properties, even though reduced in viscosity, suitable for use as an automatic transmission oil, particularly as a metal belt continuously variable transmission oil. The lubricating oil composition contains a base oil and the following based on the total mass of the composition: (A) a boron-containing ashless dispersant in an amount of 300 to 1000 ppm by mass on a boron basis, (B) a metallic detergent having a total base number of at least 200 mgKOH/g in an amount of 100 to 1200 ppm by mass on a metal basis, and (C) a friction modifier in an amount of 0.01 to 5 percent by mass. The ratio (Bo/M) of the content of Component (A) on a boron basis (Bo:ppm by mass) to the content of Component (B) on a metal basis (M:ppm by mass) being from 0.5 to 4.

Lubricating oil composition, and sliding mechanism using lubricating oil composition

Disclosed is a lubricating oil composition for low-friction sliding materials, which is used in a sliding mechanism where a DLC film containing hydrogen in an amount of from 5 atom % to 50 atom % is formed on at least one sliding surface. The lubricating oil composition contains, in the lubricant base oil therein and based on the total amount of the composition, (A) an organic zinc dithiophosphate in an amount of from 0.005% by mass to 0.12% by mass in terms of the phosphorus concentration therein, (B) an amine-based friction-reducing agent in an amount of from 0.05% by mass to 5.0% by mass, and (C) an alkaline earth metal salicylate-based detergent and/or an alkaline earth metal sulfonate-based detergent in an amount of from 0.05% by mass to 0.5% by mass in terms of the alkaline earth metal concentration therein, wherein the component (A) contains, based on the total amount of the composition, a zinc primary dialkyldithiophosphate in an amount of from 0.005% by mass to 0.05% by mass in terms of the phosphorus concentration therein.

Low Ash Lubricant and Fuel Additive Comprising Alkoxylated Amine

A lubricating oil detergent composition comprises an overbased calcium sulfonate and a low ash detergent, which low ash detergent is metal free and comprises the reaction product of an acidic organic compound such as an alkylated salicylic acid, a boron compound and an amine component.

GASOLINE PARTICULATE FILTERS WITH HIGH INITIAL FILTERING EFFICIENCY AND METHODS OF MAKING SAME

Gasoline Direct Injection (GDI) engines require gasoline particulate filters (GPFs) as a key component of the emissions control system to reduce particulate emissions. GPFs are known to have poor initial performance, with performance increasing after the filter develops a cake. This poor initial performance make it impossible to accurately assess vehicle emissions performance at the mileage requirements for vehicle certification. Compositions and methods are disclosed to improve filtration efficiency in a fresh or low mileage GPF. 1. A gasoline particulate filter comprising:a pre-service gasoline particulate filter comprising pores,wherein the pores are at least partially filled with a particulate substance.2. The gasoline particulate filter of claim 1 , wherein the pre-service gasoline particulate filter provides a filtration efficiency of at least 80% after 100 initial miles.3. The gasoline particulate filter of claim 1 , wherein the particulate substance comprises at least one of a soot surrogate substance claim 1 , an ash surrogate substance claim 1 , and an aggregate particulate substance.4. The gasoline particulate filter of claim 3 , wherein the particulate substance comprises one or more of silica powder claim 3 , alumina powder claim 3 , talc claim 3 , gypsum claim 3 , soot claim 3 , ash claim 3 , flours claim 3 , starches claim 3 , and salts.5. The gasoline particulate filter of claim 1 , wherein the particulate substance is present on the gasoline particulate filter in an amount of at least about 0.5 gram/L.6. The gasoline particulate filter of claim 1 , wherein the particulate substance is present on the gasoline particulate filter in an amount up to about 6 grams/L.7. The gasoline particulate filter of claim 1 , wherein the particulate substance comprises a plurality of particles having a diameter of from about 10 nanometers to about 200 micrometers.8. A method of pretreating a gasoline particulate filter claim 1 , comprising:contacting the gasoline ...

Marine engine lubrication

A trunk piston lubricating oil composition of TBN 20 to 60 comprising (A) a high saturates low sulphur oil of lubricating viscosity in a major amount; (B) an overbased metal hydroxybenzoate detergent additive; (C) a polyisobutene succinic anhydride additive (1-7 mass %); and (D) a meta-linear pentadecyl phenol additive (10.1 to 10 mass %), the weight ratio of (D) to (C) being less than 1 and the combined treat rate of (B), (C) and (D) being 5 to 30%. The composition is useful to improve asphaltene dispersancy when lubricating a medium-speed compression-ignited marine engine fueled by a heavy fuel oil.

Lubricant Compositions For Direct Injection Engines

The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and a metal overbased detergent. The metal overbased detergent may be selected from sulfonate detergents, phenate detergents, and salicylate detergents, especially sulfonate detergents with a metal ratio of at least 5.

Friction modifiers for use in lubricating oil compositions

A lubricating oil comprising a major amount of base oil and a minor amount of an additive package comprising a friction modifier component selected from: (A) one or more friction modifiers of the formulae I and II: (B) two or more friction modifiers independently selected from the formulae III and IV: and (C) at least one friction modifier of the formulae III and IV in combination with at least one friction modifier of the formulae I and II, and R, R 1 , R 2 , R 3 , X and n are as defined in the specification.

Friction Modifiers for Slideway Applications

A slideway lubricating oil composition, additive concentrate, method of lubricating sliding parts. The lubricating oil includes a base oil; a metal-free friction modifier; and a metal-free, sulfur-free, phosphorus containing anti-wear/extreme pressure agent. The lubricating oil provides a lower coefficient of friction for non-metal sliding surfaces than for metal sliding surfaces. 2. The lubricating oil composition of claim 1 , wherein the metal-free friction modifier comprises an amine-containing claim 1 , metal-free friction modifying compound.3. The lubricating oil composition of claim 1 , wherein the anti-wear/extreme pressure agent comprises dimethyl octadecyl phosphonate.4. The lubricating oil composition of claim 1 , further comprising a detergent claim 1 , wherein the detergent is selected from the group consisting of a calcium overbased sulfonate claim 1 , a calcium overbased phenate claim 1 , and a calcium overbased salicylate.5. The lubricating oil composition of claim 1 , further comprising a dispersant claim 1 , wherein the dispersant is selected from the group consisting of a succinimide dispersant claim 1 , a Mannich dispersant claim 1 , and a functionalized olefin copolymer dispersant.7. The additive composition of claim 6 , wherein the metal-free friction modifier comprises an amine-containing claim 6 , metal-free friction modifying compound.8. The additive composition of claim 6 , wherein the anti-wear/extreme pressure agent comprises dimethyl octadecyl phosphonate.9. The additive composition of claim 6 , further comprising a detergent claim 6 , wherein the detergent is selected from the group consisting of a calcium overbased sulfonate claim 6 , a calcium overbased phenate claim 6 , and a calcium overbased salicylate.10. The additive composition of claim 6 , further comprising a dispersant claim 6 , wherein the dispersant is selected from the group consisting of a succinimide dispersant claim 6 , a Mannich dispersant claim 6 , and a functionalized ...

LUBRICANT COMPOSITION COMPRISING HINDERED CYCLIC AMINES

A lubricant composition includes a base oil and a cyclic amine compound. A method of lubricating a system including a fluoropolymer seal with the lubricant composition is also provided. An additive concentrate for a lubricant composition is also provided. The cyclic amine compound is useful for adjusting the total base number of a lubricant composition. The lubricant composition is compatible with fluoropolymer seals. 2. A lubricant composition according to where said cyclic amine compound is present in an amount ranging from 0.1 to 10 wt. % claim 1 , based on a total weight of said lubricant composition.3. A lubricant composition according to where said cyclic amine compound has a weight average molecular weight ranging from 100 to 1200.4. A lubricant composition according to comprising said cyclic amine compound of said formula (I).5. A lubricant composition according to comprising said cyclic amine compound of said formula (II).6. A lubricant composition according to where each Ris an independently selected alkyl group having from 1 to 6 carbon atoms in each formula claim 1 , where Ris an alkyl group having from 7 to 17 carbon atoms claim 1 , where Ris an alkyl group having from 1 to 4 carbon atoms claim 1 , and where Ris an alkyl group having from 6 to 14 carbon atoms.7. A lubricant composition according to where said cyclic amine compound of said formula (I) comprises only one ester group.8. A lubricant composition according to where said cyclic amine compound has a TBN value of at least 70 mg KOH per g of said cyclic amine compound when tested according to ASTM D4739.9. A lubricant composition according to comprising less than 0.1 wt. % of compounds which would react with said cyclic amine compound based on the total weight of said lubricant composition.10. A lubricant composition according to where said base oil is selected from an API Group I Oil claim 1 , an API Group II Oil claim 1 , an API Group III Oil claim 1 , an API Group IV Oil claim 1 , and ...

Lubricant oil composition for internal combustion engine

A lubricant oil composition for internal combustion engines with which further reduction of friction can be achieved to provide excellent fuel efficiency is provided. (A) A lubricant oil base oil having a kinematic viscosity at 100° C. of 2.0 to 5.0 mm 2 /s; (B) a molybdenum-based friction modifier in an amount of 0.005 to 0.2 mass % in terms of the mass of the molybdenum relative to the total mass of the composition; (C) a metal-based detergent in an amount of 0.01 to 1 mass % in terms of the mass of the metal relative to the total mass of the composition; and (D) 0.01 to 10 mass % of at least one compound selected from amino acids having a C 6-24 alkyl, alkenyl, or acyl group, and/or derivatives of the amino acids.

GREASE COMPOSITION INCLUDING COPPER SULFIDE FOR CONSTANT VELOCITY JOINTS

A grease composition is intended primarily for use in constant velocity joins (CV joints), especially ball joints and/or tripod joints, which are used in the drivelines of motor vehicles. The grease composition for use in constant velocity joints comprises at least one base oil, and least one thickener, at least one copper sulfide in an amount of approximately 0.01 wt-% up to approximately 1.5 wt-% of the grease composition, molybdenum disulfide and/or at least one phosphor-free organic molybdenum complex in an amount of approximately 0.1 wt-% up to approximately 5.0 wt-% of the grease composition. Further, a constant velocity joint comprises the grease composition. 116-. (canceled)17. A grease composition for use in constant velocity joints comprisinga) at least one base oil;b) at least one thickener;c) at least one copper sulfide in an amount between approximately 0.01 wt-% and approximately 1.5 wt-% of a total amount of the grease composition; andd) at least one of molybdenum disulfide and at least one phosphor-free organic molybdenum complex in an amount between approximately 0.1 wt-% and approximately 5.0 wt-% of the total amount of the grease composition.18. The grease composition of claim 17 , wherein the at least one copper sulfide is copper(II)sulfide (CuS).19. The grease composition of claim 17 , wherein a ratio between the amount of the at least one of molybdenum disulfide and at least one phosphor-free organic molybdenum complex and the amount of the at least one copper sulfide is in a range between approximately 1:1 to approximately 15:1.20. The grease composition of claim 17 , wherein a total amount of the at least one copper sulfide and the at least one of molybdenum disulfide and at least one phosphor-free organic molybdenum complex is less than or equal to approximately 6.5 wt-% of the total amount of the grease composition.21. The grease composition of claim 17 , further comprising at least one organic sulfur-additive in an amount between ...

Method Of Lubricating An Internal Combustion Engine

The invention provides a method of lubricating a compression-ignition internal combustion engine with a maximum laden mass over 2,700 kg comprising supplying to the engine a lubricating composition comprising: an oil of lubricating viscosity, a 300 TBN or higher alkaline earth metal sulphonate detergent having a metal ratio of 10 to 40, 0.1 wt % to 4 wt % of a borated polyisobutylene succinimide dispersant, wherein the polyisobutylene from which the borated polyisobutylene succinimide is derived has a number average molecular weight of 550 to 1150, and 0.1 wt % to 6 wt % of a polyisobutylene succinimide, wherein the polyisobutylene from which polyisobutylene succinimide is derived has a number average molecular weight of 1550 to 2500, 0 wt % to 0.2 wt % of a phenolic based detergent, wherein the total amount of soap delivered by the alkaline earth metal sulphonates (typically calcium sulphonate) is 0.4 to 1 wt % of the lubricating composition, and wherein the lubricating composition has a sulphated ash content of not more than 1.5 wt %. 2. The method of claim 1 , wherein the lubricating composition has (i) a sulphur content of 0.5 wt % or less claim 1 , and (ii) a phosphorus content of 0.1 wt % or less.3. The method of claim 1 , wherein the lubricating composition has at least one of (i) a sulphur content of 0.2 wt % to 0.4 wt % claim 1 , and (ii) a phosphorus content of 0.08 wt % to 0.15 wt %.4. The method of claim 1 , wherein the lubricating composition has a total base number (TBN) content of at least 5 mg KOH/g.5. The method of claim 1 , wherein the lubricating composition has a total base number (TBN) content of 7 to 10 mg KOH/g.6. The method of claim 1 , wherein the 300 TBN or higher calcium sulphonate detergent has a TBN of 350 to 500.7. The method of claim 1 , wherein the 80 TBN or lower calcium sulphonate has a TBN of 1 to 80.8. The method of claim 1 , wherein the dispersant viscosity modifier is an olefin copolymer further functionalised with a dispersant ...

ENVIRONMENTALLY FRIENDLY HIGH PRESSURE LUBRICANT ADDITIVE

Prior high pressure lubricant additives have contained short-chained chlorinated paraffins which are toxic and harmful to the environment. An environmentally friendly high pressure lubricant additives is provided by combining 74.5% to 84.5% by weight chlorinated alkanes, such as PAROIL 310 NR or PAROIL 353 NR, and from 15.5% to 25.5% by weight mineral oil. The high pressure lubricant additive can be added to motor oil, or other lubricants such as hydraulic fluid, cutting oil, gear box oil, automatic transmission fluid and penetrating oil 1. A high pressure lubricant additive comprising from 74.5% to 84.5% by weight chlorinated alkanes , and from 15.5% to 25.5% by weight mineral oil.2. The high pressure lubricant additive of wherein the mineral oil comprises vitamin E.3. The high pressure lubricant additive of further comprising about 0.05% by weight aloe vera.4. The high pressure lubricant additive of wherein said chlorinated alkane is PAROIL 310 NR or PAROIL 353 NR.5. The high pressure lubricant additive of comprising from 84 to 85% PAROIL 310 NR by weight claim 1 , and 15 to 16% mineral oil by weight6. The high pressure lubricant additive of comprising approximately 84.5% by weight PAROIL 310NR claim 5 , and 15.5% by weight mineral oil.7. A lubricant comprising the high pressure lubricant additive of wherein the lubricant is selected from the group consisting of greases claim 1 , motor oil claim 1 , hydraulic oil and fluid claim 1 , cutting oil claim 1 , metal cutting lubricants claim 1 , machine oil claim 1 , industrial gear lubricants. gear box oil claim 1 , automatic transmission fluid claim 1 , power steering fluid and penetrating oil.8. The lubricant of comprising a motor oil and 3 to 6% by weight of the high pressure lubricant additive of .9. The lubricant of comprising about 5% by weight of the high pressure lubricant additive of .10. The lubricant of comprising one part of by weight of the high pressure lubricant additive of and between 10 and 30 parts of ...

Lubricant Oil Compositions

Compositions comprise first antioxidants and first additives, such as, a surface additives, performance enhancing additives and lubricant protective additives and optionally second additives and/or second antioxidants. The compositions are useful to improve lubricants, lubricant oils and other lubricant materials. The compositions and methods generally provide longer shelf lives, increased oxidative resistance, improved quality and/or enhanced performance to lubricants or lubricant oils. 2. The lubricant composition of claim 1 , wherein the first additive is a surface additive selected from the group consisting of (a) rust inhibitors claim 1 , (b) corrosion inhibitors claim 1 , (c) extreme pressure agents claim 1 , (d) tackiness agents claim 1 , (e) antiwear agents claim 1 , (f) detergents and dispersants and (g) compounded oil.3. The lubricant composition of claim 1 , wherein the first additive is a performance enhancing additive selected from the group consisting of (a) pour-point depressants claim 1 , (b) viscosity index modifiers claim 1 , (c) emulsifiers claim 1 , and (d) demulsifiers.4. The lubricant composition of claim 1 , wherein the first additive is a lubricant protective additive selected from the group consisting of (a) oxidation inhibitors and (b) foam inhibitors.5. The lubricant composition of claim 1 , wherein the composition further includes a second antioxidant selected from the group consisting of: amine antioxidants claim 1 , phenolic antioxidants claim 1 , sulfurized organic compounds claim 1 , organo-borate compounds claim 1 , phosphite and phosphate antioxidants claim 1 , copper compounds and zinc dithiodiphosphates.6. The lubricant composition of claim 1 , wherein the lubricant is selected from the group consisting of petroleum based oils claim 1 , synthetic oils and biolubricant oils.7. The lubricant composition of claim 1 , wherein R″ is —H claim 1 , a C1-C10 alkyl claim 1 , or a substituted benzyl group.8. The lubricant composition of ...

LUBRICATING OIL COMPOSITION FOR GAS ENGINES

The lubricating oil composition for gas engine of the present invention contains (A) a base oil, (B1) an overbased calcium salicylate, (B2) an overbased sodium sulfonate, (C1) an amine-based antioxidant, and (C2) a phenol-based antioxidant, a total content of the amine-based antioxidant (C1) and the phenol-based antioxidant (C2) being 4 mass % or more on a basis of the whole amount of the composition. 1: A lubricating oil composition for gas engine , comprising (A) a base oil , (B1) an overbased calcium salicylate , (B2) an overbased sodium sulfonate , (C1) an amine-based antioxidant , and (C2) a phenol-based antioxidant , a total content of the amine-based antioxidant (C1) and the phenol-based antioxidant (C2) being 4 mass % or more on a basis of the whole amount of the composition.3: The lubricating oil composition for gas engine according to claim 1 , further comprising (C3) a molybdenum-based antioxidant.4: The lubricating oil composition for gas engine according to claim 1 , wherein the total content of the amine-based antioxidant (C1) and the phenol-based antioxidant (C2) is 5 mass % or more on a basis of the whole amount of the composition.5: The lubricating oil composition for gas engine according to claim 1 , further comprising (B3) a basic calcium sulfonate.6: The lubricating oil composition for gas engine according to claim 1 , further comprising (E1) a polymethacrylate as (E) a viscosity index improver.7: The lubricating oil composition for gas engine according to claim 1 , wherein a calcium content is 0.05 to 0.4 mass % claim 1 , and a sodium content is 0.005 to 0.1 mass % on a basis of the whole amount of the composition.8: The lubricating oil composition for gas engine according to that is suitable for use in a gas heat pump.9: A method for producing a lubricating oil composition for gas engine claim 1 , comprising blending (B1) an overbased calcium salicylate claim 1 , (B2) an overbased sodium sulfonate claim 1 , (C1) an amine-based antioxidant claim ...

GASOLINE ENGINE LUBRICANT OIL COMPOSITION AND MANUFACTURING METHOD THEREFOR

Provided is a lubricating oil composition capable of revealing fuel consumption reducing properties due to a friction reducing effect within a short period of time while having excellent fuel consumption reducing properties, specifically a lubricating oil composition of the present invention includes a base oil, a molybdenum dithiocarbamate, a calcium detergent, a magnesium detergent, and a boron-free succinimide, wherein the content of the molybdenum dithiocarbamate as converted into a molybdenum atom is 1,200 ppm by mass or less on a basis of the whole amount of the composition; the content of the boron-free succinimide as converted into a nitrogen atom is less than 1,200 ppm by mass on a basis of the whole amount of the composition; and a mass ratio of the molybdenum atom (Mo) to a magnesium atom (Mg) of the magnesium detergent [Mo/Mg] is 0.1 or more. 1: A lubricating oil composition , comprising:a base oil;a molybdenum dithiocarbamate;a calcium detergent;a magnesium detergent; anda boron-free succinimide,wherein:a content of the molybdenum dithiocarbamate as converted into a molybdenum atom is 1,200 ppm by mass or less on a basis of a whole amount of the lubricating oil composition;a content of the boron-free succinimide as converted into a nitrogen atom is less than 1,200 ppm by mass on a basis of the whole amount of the lubricating oil composition; anda mass ratio of the molybdenum atom (Mo) to a magnesium atom (Mg) of the magnesium detergent [Mo/Mg] is 0.1 or more.2: The lubricating oil composition according to claim 1 , wherein a content of the calcium detergent as converted into a calcium atom is 2 claim 1 ,000 ppm by mass or less on a basis of the whole amount of the composition.3: The lubricating oil composition according to claim 1 , further comprising:a boron-containing succinimide,wherein a content of the boron-containing succinimide as converted into a boron atom being 50 ppm by mass or more on a basis of the whole amount of the lubricating oil ...

Lubricating Oil Compositions

A lubricating oil composition, a method of reducing low-speed pre-ignition (LSPI) in a direct-injected spark-ignited internal combustion engine, and a use of a lubricant composition to reduce LSPI events in such an engine. Preferably, the composition comprises a detergent package comprising a borated calcium detergent, wherein the detergent package provides a calcium content in the composition of at least 0.12 mass %, based on the total mass of the composition, and wherein the borated calcium detergent provides a boron content in the composition of at least 100 ppmm, based on the total mass of the composition. Optionally, the composition comprises a first detergent comprising a calcium detergent, and a second detergent comprising a borated calcium detergent. 1. A lubricating oil composition comprising a first detergent comprising a calcium detergent and a second detergent comprising a borated calcium detergent;wherein, the first and second detergents together provide a calcium content, as measured by ASTM 4951, in the lubricating oil composition of at least 0.12 mass %, based on the total mass of the lubricating oil composition, and wherein the second detergent provides a boron content, as measured by ASTM D5185, in the lubricating oil composition of at least 100 ppmm, based on the total mass of the lubricating oil composition.2. A lubricating oil composition according to claim 1 , wherein the first detergent has a calcium content of from 2 mass % to 16 mass % claim 1 , based on the mass of the first detergent claim 1 , andtor the second detergent has a calcium content of from 4 mass % to 16 mass % claim 1 , based on the mass of the second detergent.3. A lubricating oil composition according to claim 1 , wherein the second detergent has a boron content of from 1 mass % to 10 mass % claim 1 , based on the mass of the second detergent.4. A lubricating oil composition according to claim 1 , wherein the first and second detergents together provide a calcium content in ...

STEEL WIRE ROD HAVING COATING FILM THAT HAS EXCELLENT CORROSION RESISTANCE AND WORKABILITY, AND METHOD FOR PRODUCING SAME

The present invention provides a steel wire rod having a lubricating coating film, which can achieve both workabilities such as wire drawability, spike property and ball ironing property, and corrosion resistance such as long-term rust prevention property; and a method for producing the same. Disclosed are a steel wire rod having a coating film containing no phosphorus, wherein the coating film includes a lower layer coating film composed of oxide and/or hydroxide of zirconium and having a film thickness of 1.0 to 200 nm, and an upper layer coating film containing silicon and tungsten, in order from a steel wire rod side, a mass ratio of tungsten/silicon being in a range of 1.3 to 18; and a method for producing the above steel wire rod, which includes bringing an aqueous chemical conversion treatment solution, which has a pH in a range of 2.5 to 5.0 and contains a water-soluble zirconium compound dissolved therein, into contact with a surface of a steel wire rod to form a lower layer coating film. 1. A steel wire rod comprising a coating film comprising no phosphorus , whereinthe coating film comprises a lower layer coating film comprising an oxide and/or hydroxide of zirconium and having a film thickness of 1.0 to 200 nm, and an upper layer coating film comprising silicon and tungsten, in order from a steel wire rod side, wherein a mass ratio of tungsten/silicon is in a range of 1.3 to 18.2. The steel wire rod according to claim 1 , wherein the silicon is derived from a water-soluble silicate claim 1 , and the tungsten is derived from a water-soluble tungstate.3. The steel wire rod according to claim 1 , wherein the silicon is derived from at least one selected from the group consisting of lithium silicate claim 1 , sodium silicate and potassium silicate claim 1 , and the tungsten is derived from at least one selected from the group consisting of lithium tungstate claim 1 , sodium tungstate claim 1 , potassium tungstate and ammonium tungstate.4. The steel wire rod ...

OPTIMIZED COMPOSITION FOR ENGINE DEPOSITS AND SEALS

The present disclosure is directed to an additive composition for engine oils comprising; (a) an alkenyl-substituted succinic anhydride and (b) a polyamine compound and (C) Co-additives, wherein the reaction product has a ratio of the amide to imide infrared absorption peak areas of about 1:1.2 to about 1.6. The said reaction product is effective to prevent engine deposits along with protecting elastomeric seal material of an internal combustion engine and also improves piston cleanliness and ring sticking performance of an internal combustion engine. 1. A reaction product derived from (A) an alkenyl-substituted succinic anhydride and (B) a polyamine compound and wherein said reaction product has a ratio of the amide to imide infrared absorption peak areas of about 1:1.2 to about 1.6; in combination of (C) co-additives.2. The composition as claimed in claim 1 , wherein the molar ratio of the succinic agent of the primary Nitrogen of the polyamine is less than 1.3. The composition as claimed in claim 1 , wherein the alkenyl-substituted succinic anhydride is a dispersant comprising polyisobutylene succinic anhydride.4. The composition as claimed in claim 3 , wherein the said dispersant is formed by blend of various dispersants.5. The composition as claimed in claim 3 , wherein the said blend comprises of a bisimide claim 3 , with or without borati on claim 3 , and a dispersant as claimed in .6. The composition as claimed in claim 5 , wherein the said bisimide is having a ratio of succinic to primary amine between 0.9 and 1.2.7. The composition as claimed in claim 5 , wherein the molar amount of boron in the dispersant is in the range of 0.01-250% moles of Nitrogen.8. The composition as claimed in - claim 5 , wherein the blend of polyisobutylene succinic anhydride has a number average molecular weight of about 1400 to about 2500 and satisfy the ratio of amide to imide as claimed in .9. The composition as claimed in claim 1 , wherein the moles of anhydride in the ...

LUBRICATING OIL COMPOSITION

A lubricating oil composition containing a lubricating base oil and on the basis of the total mass of the composition, (A) a boron-containing ashless dispersant in an amount of 100 to 500 ppm by mass as boron, (B) a phosphorous additive in an amount of 300 to 800 ppm by mass as phosphorus, (C) an amide- and/or imide-based friction modifier in an amount of 1 to 4 percent by mass, and (D) an alkali metal- and/or alkaline earth metal-based detergent in an amount of 100 to 300 ppm by mass as metal, and having a 40° C. kinematic viscosity of 30 mm2/s or lower is provided. The lubricating oil composition, which has a low viscosity to improve fuel efficiency, also has superior anti-wear, anti-seizure, and anti-shattering properties, even when the composition is degraded by oxidation or by the elution of compounds from sealing materials after long term use. 1. A lubricating oil composition comprising a lubricating base oil and on the basis of the total mass of the composition , (A) a boron-containing ashless dispersant in an amount of 100 to 500 ppm by mass as boron , (B) a phosphorous additive in an amount of 300 to 800 ppm by mass as phosphorus , (C) an amide- and/or imide-based friction modifier in an amount of 1 to 4 percent by mass , and (D) an alkali metal- and/or alkaline earth metal-based detergent in an amount of 100 to 300 ppm by mass as metal and having a 40° C. kinematic viscosity of 30 mm/s or lower.2. The lubricating oil composition according to wherein the phosphorus additive of Component (B) contains a phosphite ester.3. The lubricating oil composition according to claim 1 , wherein the phosphorus additive of Component (B) is a combination of a phosphite ester and phosphoric acid and has a ratio ([P2]/[P1]) of the phosphorus amount [P2] of the phosphoric acid to the phosphorus amount [P1] of the phosphite ester of 0.2 to 1.5.4. The lubricating oil composition according to claim 1 , wherein the alkali metal- and/or alkaline earth metal-based detergent of ...

Lubricant Composition Comprising Acyclic Hindered Amines

A lubricant composition including an acyclic amine compound. A method of lubricating a system including a fluoro-polymer seal with the lubricant composition is also provided. An additive concentrate for a lubricant composition is also provided. The acyclic amine compound is useful for adjusting the total base number of a lubricant composition. The lubricant composition is compatible with fluoropolymer seals. 2. (canceled)3. A crankcase lubricant composition according to wherein said acyclic amine compound is non-polymeric and has a weight average molecular weight ranging from 100 to 1200.4. A crankcase lubricant composition according to where said acyclic amine compound has a weight average molecular weight ranging from 200 to 800.5. A crankcase lubricant composition according to wherein each Ris an independently selected alkyl group having from 1 to 8 carbon atoms.6. A crankcase lubricant composition according to wherein each Ris an independently selected alkyl group having from 1 to 8 carbon atoms.7. A crankcase lubricant composition according to wherein Ris an alkyl group having from 1 to 4 carbon atoms.8. A crankcase lubricant composition according to wherein said acyclic amine compound has a TBN value of at least 70 mg KOH per g of said acyclic amine compound when tested according to ASTM D4739.9. A crankcase lubricant composition according to comprising less than 0.1 wt. % of compounds which would react with said acyclic amine compound based on the total weight of said lubricant composition.10. A crankcase lubricant composition according to wherein said base oil is selected from an API Group I Oil claim 1 , an API Group II Oil claim 1 , an API Group III Oil claim 1 , an API Group IV Oil claim 1 , and combinations thereof claim 1 , and wherein said base oil has a viscosity ranging from 1 to 20 cSt when tested at 100° C. according to ASTM D445.11. A crankcase lubricant composition according to wherein at least 90 wt. % of said acyclic amine compound remains ...

TITANIUM AND MOLYBDENUM COMPOUNDS AND COMPLEXES AS ADDITIVES IN LUBRICANTS

A lubricating composition comprising an oil of lubricating viscosity, 1 to 1000 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material, and at least one additional lubricant additive provides beneficial effects on properties such as deposit control, oxidation, and filterability in engine oils. 1. A lubricating composition comprising:an oil of lubricating viscosity;about 5 to about 100 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material which comprises a titanium (IV) alkoxide or a titanium (IV) neodecanoate or mixtures thereof;about 50 to about 150 parts per million by weight molybdenum in the form of an oil-soluble molybdenum-containing material comprising a molybdenum hydrocarbyldithiocarbamate; andabout 0.3 to about 3 percent by weight of a hindered phenolic antioxidant.2. The lubricating composition of claim 1 , wherein the amount of molybdenum is about 70 to about 150 parts per million by weight.3. The lubricating composition of claim 1 , wherein the hindered phenolic antioxidant comprises a hindered phenolic ester antioxidant.4. The lubricating composition of claim 1 , wherein the amount of the phenolic antioxidant is about 0.7 to about 2.0 percent by weight.5. The lubricating composition of claim 1 , wherein the amount of phosphorus in said composition is less than about 1000 parts per million by weight.6. The lubricating composition of claim 1 , further comprising at least one additive selected from the group consisting of an anti-wear agent and a dispersant.7. The lubricating composition of claim 1 , further comprising a sodium-containing detergent in an amount to contribute about 100 to about 2000 parts per million weight sodium to the composition.8. The lubricating composition of claim 1 , further comprising about 0.1 to about 2.0 weight percent of a component comprising a hydroxycarboxylic acid or an ester claim 1 , amide claim 1 , imide claim 1 , or salt thereof ...

COMPOSITION OF INTERNAL LUBRICANT FOR COLD PILGERING

Disclosed is a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, disclosed is a composition of an internal lubricant for cold pilgering of a zirconium alloy cladding tube, the composition exhibiting excellent lubricity and decomposition against microbes. 1. A composition of a lubricant for cold pilgering , the composition comprising:a base oil;a lubricity enhancer;an anti-wear agent; andan anti-decomposition agent,wherein the lubricity enhancer is a vegetable wax and is included 1.0 to 1.4% by weight.2. The composition of claim 1 , wherein the vegetable wax is Brazil wax.3. The composition of claim 1 , wherein the anti-wear agent is included 1.4 to 1.8% by weight.4. The composition of claim 1 , wherein the anti-decomposition agent is included 0.8 to 1.2% by weight.5. The composition of claim 1 , wherein the anti-wear agent comprises at least one selected from benzenesulfonic acid claim 1 , Cto Calkyl groups claim 1 , calcium salts claim 1 , sulfuric acid claim 1 , and Cto Calkyl derivatives.6. The composition of claim 1 , wherein the anti-decomposition agent comprises at least one selected from 1 claim 1 ,2-benzisothiazolin-3-one claim 1 , potassium hydroxide claim 1 , sodium hydroxide claim 1 , ethylene glycol claim 1 , and dihydrogen oxide. The present application claims priority to Korean Patent Application No. 10-2020-0012549, filed Feb. 3, 2020, the entire contents of which is incorporated herein for all purposes by this reference.The present invention relates generally to a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, the present invention relates to a composition of an internal lubricant for cold pilgering of a-zirconium alloy cladding tube, the composition exhibiting excellent lubricity, extreme pressure resistance, and wear resistance.In a nuclear fuel assembly, cladding tubes serve to protect UOsintered pellets by separating the UOsintered pellets from cooling water in a ...

Composition of external lubricant for cold pilgering

Disclosed is a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, disclosed is a composition of an external lubricant for cold pilgering of a zirconium alloy cladding tube, the composition exhibiting excellent lubricity and decomposition against microbes.

Lubricating composition for a hybrid electric vehicle transmission

The disclosed technology relates to a lubricant composition for use in an automatic transmission of a hybrid electric vehicle, containing an oil of lubricating viscosity, at least one borate ester, and at least one phosphorus containing compound.

LUBRICATING COMPOSITION CONTAINING A DISPERSANT

The invention provides a lubricating composition containing a compound comprising the reaction product of a polyolefin, an ethylenically unsaturated aromatic acylating agent (or carboxylic reactant), and an amine, and an oil of lubricating viscosity. The invention further relates to the use of the lubricating composition in an internal combustion engine. 1. A lubricating composition comprising:(a) an oil of lubricating viscosity,(b) a compound comprising the reaction product of a polyisobutylene, an ethylenically unsaturated aromatic acylating agent (or carboxylic reactant), and an amine(c) an overbased metal-containing detergent, and(d) a succinimide dispersant.2. The lubricating composition of claim 1 , wherein the amine is an acyclic polyamine.3. The lubricating composition of claim 2 , wherein the acyclic polyamine is an ethylenepolyamine.4. The lubricating composition of claim 3 , wherein the ethylenepolyamine is selected from the group consisting of ethylenediamine claim 3 , diethylenetriamine claim 3 , triethylenetetramine claim 3 , tetraethylenepentamine claim 3 , pentaethylenehexamine claim 3 , polyamine still bottoms claim 3 , and mixtures thereof.5. The lubricating composition of claim 1 , wherein the ethylenically unsaturated aromatic acylating agent (or carboxylic reactant) is selected from cis-cinnamic acid claim 1 , trans-cinnamic acid claim 1 , and mixtures thereof.6. The lubricating composition of claim 1 , wherein the compound is non-borated.7. The lubricating composition of claim 1 , wherein the compound (b) is present at 0.1 wt % to 15 wt % of the lubricating composition.8. The lubricating composition of claim 1 , wherein the lubricating composition has a sulphated ash content of 0.3 wt % to 1.2 wt %.9. The lubricating composition of claim 1 , wherein the overbased metal-containing detergent is selected from the group consisting of non-sulphur containing phenates claim 1 , sulphur containing phenates claim 1 , sulphonates claim 1 , salixarates ...

Lubrication oil composition with enhanced wear and low speed pre-ignition properties

A lubricating oil composition having a sulfated ash content of from greater than 1.0 wt. % to about 2.0 wt. %, a phosphorus content of from about 0.07 to about 0.12 wt. % and a sulfur content of 0.4 wt. % or less, the lubricating oil composition comprising: (a) an oil of lubricating viscosity in a major amount; (b) an overbased magnesium detergent, in an amount providing the lubricating oil composition with at least 600 ppm of magnesium; (c) a boron-containing compound, in an amount providing the lubricating oil composition with at least 250 ppm of boron; and (d) a molybdenum-containing compound, in an amount providing the lubricating oil composition with at least 50 ppm of molybdenum, wherein the composition has a B/Mo mass ratio in a range of 2 to 10 and a S/Mo mass ratio in a range of 10 to 25.

LUBRICATING COMPOSITION CONTAINING AN ANTIWEAR AGENT

The invention provides a lubricating composition containing an oil of lubricating viscosity, a compound derived from the hydroxy-carboxylic acid and a nitrile compound. The invention further relates to a method of the lubricating an internal combustion engine with the lubricating composition. 120.-. (canceled)22. The lubricating composition of claim 21 , wherein the nitrile compound has general formula CH(CH)—C≡N claim 21 , wherein m is 10 to 18.23. The lubricating composition of claim 21 , wherein n and m both equal 1 claim 21 , or n=2 and m=1 claim 21 , or n and m both equal 2 claim 21 , or n=3 and m=1.24. The lubricating composition of claim 21 , wherein n and m both equal 2.25. The lubricating composition of claim 21 , wherein the hydroxy-carboxylic acid is a derivative of tartaric acid claim 21 , or mixtures thereof.26. (canceled)27. The lubricating composition preceding claim 21 , wherein the nitrile and the compound which is a derivative of a hydroxy-carboxylic acid are present in amounts in the range of 0.1 wt % to 1 wt % and 0.2 wt % to 1 wt % claim 21 , respectively claim 21 , of the lubricating composition.28. The lubricating composition preceding claim 21 , wherein the nitrile and the compound which is a derivative of a hydroxy-carboxylic acid are present in amounts in the range of 0.2 wt % to 0.4 wt % and 0.2 wt % to 0.4 wt % claim 21 , respectively claim 21 , of the lubricating composition.29. The lubricating composition of claim 21 , wherein the lubricating composition is characterized as having (i) a sulphur content of 0.5 wt % or less claim 21 , (ii) a phosphorus content of 200 ppm to 600 ppm claim 21 , and (iii) a sulphated ash content of 1.5 wt % or less.30. (canceled)31. The lubricating composition of claim 21 , wherein the further comprising an overbased detergent claim 21 , wherein the overbased detergent is selected from the group consisting of phenates claim 21 , sulphur-containing phenates claim 21 , sulphonates claim 21 , salixarates claim ...

Low Ash Lubricant and Fuel Additive Comprising Alkoxylated Amine

A lubricating oil detergent composition comprises an overbased calcium sulfonate and a low ash detergent, which low ash detergent is metal free and comprises the reaction product of an acidic organic compound such as an alkylated salicylic acid, a boron compound and an amine component. 2. The detergent composition according to claim 1 , wherein the one or more carboxylic acid is selected from the group consisting of substituted salicylic acids of formula I.3. The detergent composition according to wherein R1 is independently alkyl claim 2 , alkenyl claim 2 , cycloalkyl claim 2 , cycloalkenyl claim 2 , aromatic claim 2 , aromatic substituted by aliphatic or aromatic having from 1 to about 30 carbon atoms claim 2 , or said alkyl claim 2 , alkenyl claim 2 , cycloalkyl claim 2 , cycloalkenyl claim 2 , aromatic claim 2 , aromatic substituted by aliphatic or aromatic substituted by halo or hydroxyl claim 2 , or said alkyl claim 2 , alkenyl claim 2 , cycloalkyl or cycloalkenyl which contains in a chain otherwise composed of carbon a heteroatom selected from oxygen or nitrogen.4. The detergent composition according to wherein R1 is independently a hydrocarbyl having from 1 to about 30 carbon atoms which is purely hydrocarbon.5. The detergent composition according to claim 2 , wherein the amine component further comprises one or more alkoxylated amides.6. The detergent composition according to claim 2 , wherein the one or more boron compound comprises boric acid.7. The detergent composition according to claim 5 , wherein the one or more boron compound comprises boric acid.8. A composition comprising an oil of lubricating viscosity and the detergent composition according to .9. A composition comprising an oil of lubricating viscosity and the detergent composition according to .10. A composition comprising an oil of lubricating viscosity and the detergent composition according to .11. A composition comprising a fuel and the detergent composition according to .12. A composition ...

Basic Ashless Additives

A lubricant composition comprising an oil of lubricating viscosity and an N-hydrocarbyl-substituted γ-aminoester or γ-aminothioester, wherein the N-hydrocarbyl substituent comprises a hydrocarbyl group of at least 3 carbons atoms, with a branch at the 1 or 2 position of the hydrocarbyl chain, provides exhibits basicity and good seal performance. 1. A lubricant composition comprising an oil of lubricating viscosity and an N-hydrocarbyl-substituted γ-aminoester or γ-aminothioester , wherein the N-hydrocarbyl substituent comprises a hydrocarbyl group of at least 3 carbons atoms , with a branch at the 1 or 2 position of the hydrocarbyl group , provided that if the ester or thioester is a methyl ester or methyl thioester then the hydrocarbyl group has a branch at the 1 position , and further provided that the hydrocarbyl group is not a tertiary group.2. The lubricant composition of wherein the ester or thioester comprises an ester.3. The lubricant composition of wherein the N-hydrocarbyl-substituted γ-aminoester or γ-aminothioester comprises a 2-((hydrocarbylaminomethyl)succinic acid dihydrocarbyl ester.4. The lubricant composition of wherein the ester functionality comprises an alcohol-derived group which is a hydrocarbyl group having 1 to about 30 carbon atoms.5. The lubricant composition of wherein the ester functionality comprises an alcohol-derived group which is an ether-containing group.6. The lubricant composition of wherein the γ-aminoester or γ-aminothioester is an. ester and comprises a second ester functionality claim 1 , and wherein the two alcohol-derived groups of the ester functionalities are alkyl moieties which are the same or different and have 1 to about 18 carbon atoms.12. The lubricant composition of further comprising at least one of detergents claim 1 , dispersants claim 1 , antioxidants claim 1 , or zinc dialkyldithiophosphates.13. The lubricant composition of wherein the N-hydrocarbyl-substituted γ-aminoester or γ-aminothioester is present in an ...

Cylinder lubricating oil composition for crosshead diesel engine

The present invention relates to a cylinder lubricating oil for crosshead diesel engines. In addition to having conventional characteristics such as heat resistance, cleanliness, wear resistance, and the like, the cylinder lubricating oil can be used with fuel of any sulfur content and suppresses the amount of piston deposit even when the base number is excessive. In greater detail, the present invention relates to a cylinder lubricating oil composition which includes an ashless dispersant (B) and a metallic detergent (C) in a lubricant base oil (A), in which the product of the number average molecular weight, the content, and the effective concentration of the ashless dispersant (B) is at least 9000, and the endothermic peak temperature of the metallic detergent (C) as measured by DSC at a rate of temperature increase of 50° C./min is at most 460° C.

Method for improving deposit control

A method for improving deposit control, while maintaining or improving demulsibility performance, in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil that has a particular phenate/carboxylate detergent mixture present in a particular amount in the formulated oil. A lubricating engine oil having a composition including a lubricating oil base stock as a major component; and a phenate/carboxylate detergent mixture as a minor component. The lubricating oils of this disclosure are useful in marine crankcase systems, in particular, marine system oil applications for two-stroke marine diesel engines.

METHOD OF LUBRICATING AN INTERNAL COMBUSTION ENGINE

The invention provides a method of lubricating a compression-ignition internal combustion engine with a maximum laden mass over 2,700 kg comprising supplying to the engine a lubricating composition comprising: an oil of lubricating viscosity, a 300 TBN or higher alkaline earth metal sulphonate detergent having a metal ratio of 10 to 40, 0.1 wt % to 4 wt % of a borated polyisobutylene succinimide dispersant, wherein the polyisobutylene from which the borated polyisobutylene succinimide is derived has a number average molecular weight of 550 to 1150, and 0.1 wt % to 6 wt % of a polyisobutylene succinimide, wherein the polyisobutylene from which polyisobutylene succinimide is derived has a number average molecular weight of 1550 to 2500, 0 wt % to 0.2 wt % of a phenolic based detergent, wherein the total amount of soap delivered by the alkaline earth metal sulphonate (typically calcium sulphonate) is 0.4 to 1 wt % of the lubricating composition, and wherein the lubricating composition has a sulphated ash content of not more than 1.5 wt %. 2. The method of claim 1 , wherein the lubricating composition has (i) a sulphur content of 0.5 wt % or less claim 1 , (ii) a phosphorus content of 0.1 wt % or less claim 1 , and (iii) a sulphated ash content of 0.5 wt % to 1.5 wt %.3. The method of claim 1 , wherein the lubricating composition has at least one of (i) a sulphur content of 0.2 wt % to 0.4 wt % claim 1 , (ii) a phosphorus content of 0.08 wt % to 0.15 wt % claim 1 , and (iii) a sulphated ash content of 0.5 wt % to 1.5 wt %.4. The method of claim 2 , wherein the lubricating composition has a sulphated ash content of 0.5 wt % to 1.2 wt %.5. The method of claim 1 , wherein the lubricating composition has a total base number (TBN) content of at least 5 mg KOH/g.6. The method of claim 5 , wherein the lubricating composition has a total base number (TBN) content of 7 to 10 mg KOH/g.7. The method of claim 1 , wherein the 300 TBN or higher alkaline earth metal sulphonate ...

STABILIZED BLENDS CONTAINING ANTIOXIDANTS

The present invention relates to functional fluid compositions containing antioxidants, and specifically stable compositions containing antioxidants with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and antioxidants containing a phenolic or benzoic group, where the antioxidant is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy. 1. An additive concentrate composition comprising:(a) a medium comprising a solvent, a functional fluid, or combinations thereof; and 'an alkylated diphenyl amine antioxidant, an alkylated phenyl-naphthyl amine antioxidant, or a combination thereof; and', '(b) at least 10 wt % of an antioxidant component that is not fully soluble in the medium, wherein said antioxidant comprises '(i) a nitrogen-containing dispersant derived from a 1000 number average molecular weight polyisobutylene succinic anhydride and polyalkylene polyamines; (ii) a borated nitrogen-containing dispersant derived from a 2000 number average molecular weight polyisobutylene derived succinic anhydride and polyalkylene polyamines; (iii) a trialkyl borate, or combinations thereof; and', "(c) at least 20 wt % of a stabilizing component that is soluble in (a) and that interacts with (b) such that (b)'s solubility in (a) is improved, wherein said stabilizing component comprises:"}wherein components (b) and (c) are present in component (a) in the form of dispersed particles having an average diameter of less than 10 microns.24-. (canceled)5. The composition of wherein the turbidity of the overall composition is improved claim 1 , as defined by a lower JTU and/or NTU value compared to the same composition that does not contain (c) claim 1 , the stabilizing component.6. The composition of wherein (b) claim 1 , the antioxidant ...

Lubricant oil composition

A lubricant oil composition of the present invention that is prepared by blending a boron-containing compound therein, the boron-containing compound having a ratio of an integrated value of peaks in the 5 to 25 ppm chemical shift to an integrated value of peaks in the −10 ppm to 25 ppm chemical shift, as determined by 11 B-NMR measurement in deuterochloroform using BF 3 .OEt 2 as an external standard (0 ppm), of 0.5 or higher and 1.0 or lower.

Lubricant for marine engines

A lubricant composition for engines has at least one base oil and one fatty amine.

Lubricating oil composition, lubrication method, and transmission

Provided are a lubricating oil composition containing (A) a specific amide compound and (B) a metal-based detergent, wherein the content of the metal-based detergent (B) as converted in terms of metal atom is, based on the total amount of the composition, more than 300 ppm by mass and 1,000 ppm by mass or less, and having a high intermetallic friction coefficient and excellent clutch anti-shudder performance; and a lubrication method and a transmission using the composition.

Low-Ash Lubricating Oils For Diesel Engines

The lubricant for a sump-lubricated, compression-ignited engine may contain an amount of a C12-C24 carboxylic acid-based fuel additive or component obtained by migration from the fuel. Good lubricant performance is obtained by including in the lubricant a boron-containing additive in an amount to provide about 2 to about 500 ppm B to the lubricant, provided that the total sulfated ash level is less than 0.8 weight percent. 1. A method for lubricating a sump-lubricated , compression-ignited engine which is fueled by a liquid fuel containing fatty acid-based fuel additive or component , wherein said fatty acid-based fuel additive or component is susceptible to or does migrate into the lubricant in the sump of said engine , said method comprising supplying to said engine a lubricant which comprises:(a) an oil of lubricating viscosity;(b) a boron-containing additive comprising a borated succinimide dispersant containing about 0.5 to about 5 weight percent boron (oil free basis), the boron-containing additive is about 0.1 to about 5 percent by weight, and in an amount to provide about 2 to about 500 ppm B to the lubricant;(c) an overbased detergent having a TBN (oil free basis) of at least 400; said lubricant having a total sulfated ash level of less than about 0.8 weight percent; andwherein a phosphorus content of the lubricant is less than about 0.12 percent by weight.2. The method of wherein the fatty acid-based fuel additive or component comprises a fatty acid or a condensation product or salt thereof.3. The method of wherein the fatty acid-based fuel additive or component comprises a methyl ester of a C12-24 acid.4. The method of wherein the fatty acid-based fuel additive or component comprises a mixture of fatty acids having about 14 to about 22 carbon atoms.5. The method of wherein the fatty acid-based fuel additive or component comprises tall oil fatty acids.6. The method of wherein the fatty acid-based fuel additive or component is present in the lubricant claim ...

LUBRICANTS FOR USE IN BOOSTED ENGINES

A lubricating oil composition including greater than 50 wt. % of a base oil, from 100 ppm to less than 1800 ppm by weight of total metal from metal-containing detergent(s) including an overbased calcium detergent and a magnesium containing detergent. The composition has a total nitrogen of 900 ppm to less than 1600 ppm by weight, and a ratio of total metal from the detergent(s) in ppm to the total nitrogen in ppm of less than 1.9. The composition also includes a borated compound to provide greater than 50 ppm by weight to 1000 ppm by weight of boron, and a ppm ratio of metal from the detergent(s) in ppm to the total boron is less than 7.5 and a molybdenum compound to provide greater than 80 ppm to 1200 ppm by weight molybdenum and a ppm ratio of total metal from the detergent(s) to the molybdenum is less than 23.8.

CYLINDER LUBRICATING OIL COMPOSITION FOR CROSSHEAD DIESEL ENGINE

(1) A cylinder lubricating oil composition for a crosshead diesel engine, the composition having a sulfated ash content of 2.0 to 5.5 mass %; a base number of 15 to 45 mgKOH/g; and an autoignition temperature of no less than 262° C. (2) A cylinder lubricating oil composition for a crosshead diesel engine, comprising: a lubricant base oil; (B) a Ca sulfonate detergent having a base number of no less than 10 mgKOH/g and less than 60 mgKOH/g; (C) a Ca phenate detergent having a base number of 55 to 200 mgKOH/g; (D′) an amine antioxidant; and (E′) a zinc dithiophosphate, wherein the composition has a base number of no less than 15 mgKOH/g and less than 120 mgKOH/g. 1. A cylinder lubricating oil composition for a crosshead diesel engine , the composition having:a sulfated ash content of 2.0 to 5.5 mass %;a base number of 15 to 45 mgKOH/g; andan autoignition temperature of no less than 262° C.2. The cylinder lubricating oil composition according to claim 1 ,the composition being used for lubrication of a crosshead diesel engine, the crosshead diesel engine using a fuel, the fuel having a flash point of no more than 15° C.3. The cylinder lubricating oil composition according to claim 1 ,the composition being used for lubrication of a crosshead diesel engine, the crosshead diesel engine using a fuel, the fuel comprising a hydrocarbon having 1 to 4 carbons.4. The cylinder lubricating oil composition according to claim 1 ,the composition being used for lubrication of a crosshead diesel engine, the crosshead diesel engine using a fuel, the fuel comprising methane, ethane, ethylene, propane, butane, methanol, ethanol, dimethyl ether, or combination thereof.5. The cylinder lubricating oil composition according to claim 1 , the composition comprising:a lubricant base oil;(A) a Ca salicylate detergent having a metal ratio of no more than 7, and/or a Ca phenate detergent having a metal ratio of no more than 7;(B) a Ca sulfonate detergent having a base number of no less than 10 ...

LUBRICATING COMPOSITION AND METHOD OF LUBRICATING DRIVELINE DEVICE

The present invention relates to a lubricating composition containing: an oil of lubricating viscosity, a non-borated dispersant, a detergent, and an antiwear package comprising (a) a derivative of a hydroxycarboxylic acid, (b) an amine salt of a phosphoric acid ester, and (c) a phosphite having at least one hydrocarbyl group with 4 or more carbon atoms. The invention further provides for a method of lubricating a driveline device application by employing a lubricating composition containing the antiwear package. 2. The method of claim 1 , wherein the synchronizer operating surface comprises brass claim 1 , carbon claim 1 , molybdenum claim 1 , phenolic resin claim 1 , or a sintered metal or mixtures thereof.3. The method of claim 1 , wherein the lubricating composition comprises:an oil of lubricating viscosity,0.4 wt % to 1.2 wt % of a non-borated dispersant,0.4 wt % to 1.0 wt % of a detergent, and (a) 0.05 wt % to 0.8 wt % of a derivative of tartaric or citric acid,', '(b) 0.1 wt % to 1 wt % of an amine salt of a phosphoric acid ester, and', '(c) 0.1 wt % to 1.0 wt % of a phosphite., 'an antiwear package comprising'}4. The method of claim 1 , wherein the detergent is a sulphonate claim 1 , a phenate claim 1 , or mixtures thereof.5. The method of claim 4 , wherein the phenate is an alkyl phenate claim 4 , an aldehyde-coupled alkyl phenate claim 4 , a sulphurised alkyl phenate claim 4 , or mixtures thereof.6. The method of claim 1 , wherein the non-borated dispersant is a succinimide dispersant claim 1 , or mixtures thereof.7. The method of claim 1 , wherein the non-borated dispersant is a polyisobutylene succinimide claim 1 , wherein the polyisobutylene from which the polyisobutylene succinimide is derived has a number average molecular weight in the range of 350 to 5000.8. The method of claim 1 , wherein the non-borated dispersant is a non-borated succinimide claim 1 , and wherein the non-borated dispersant is in a mixture with a borated dispersant.9. The method ...

GASOLINE PARTICULATE FILTERS WITH HIGH INITIAL FILTERING EFFICIENCY AND METHODS OF MAKING SAME

Gasoline Direct Injection (GDI) engines require gasoline particulate filters (GPFs) as a key component of the emissions control system to reduce particulate emissions. GPFs are known to have poor initial performance, with performance increasing after the filter develops a cake. This poor initial performance make it impossible to accurately assess vehicle emissions performance at the mileage requirements for vehicle certification. Compositions and methods are disclosed to improve filtration efficiency in a fresh or low mileage GPF. 1. A gasoline particulate filter comprising:a pre-service gasoline particulate filter comprising pores,wherein the pores are at least partially filled with a particulate substance.2. The gasoline particulate filter of claim 1 , wherein the pre-service gasoline particulate filter provides a filtration efficiency of at least 80% after 100 initial miles.3. The gasoline particulate filter of claim 1 , wherein the particulate substance comprises at least one of a soot surrogate substance claim 1 , an ash surrogate substance claim 1 , and an aggregate particulate substance.4. The gasoline particulate filter of claim 3 , wherein the particulate substance comprises one or more of silica powder claim 3 , alumina powder claim 3 , talc claim 3 , gypsum claim 3 , soot claim 3 , ash claim 3 , flours claim 3 , starches claim 3 , and salts.5. The gasoline particulate filter of claim 1 , wherein the particulate substance is present on the gasoline particulate filter in an amount of at least about 0.5 gram/L.6. The gasoline particulate filter of claim 1 , wherein the particulate substance is present on the gasoline particulate filter in an amount up to about 6 grams/L.7. The gasoline particulate filter of claim 1 , wherein the particulate substance comprises a plurality of particles having a diameter of from about 10 nanometers to about 200 micrometers.8. A method of pretreating a gasoline particulate filter claim 1 , comprising:contacting the gasoline ...

Novel Grease and Methods of Making the Same

The present disclosure relates to a high performance calcium sulfonate greases with enhanced performance benefits and methods for making the same.

Multigrade lubricating compositions

Lubricating composition for diesel engines

In diesel engines, soot is produced by combustion and enters into the engine oil, preventing the engine lubricant from fully exercising its lubricity. The present invention provides a lubricating composition comprising a lubricating basestock, an organic molybdenum compound (A) and succinimide (B) having 0.01 or less of an IR spectrum absorbance peak intensity ratio α/β, wherein α represents an absorbance peak intensity at 1,550±10cm -1 and β represents an absorbance peak intensity at 1,700±10cm -1 . Preferably, the organic molybdenum compound is the compound represented by the following formula (1) or formula (2): (wherein R 1 to R 8 each independently represent a hydrocarbon, and X 1 to X 8 each independently represent a sulfur atom or an oxygen atom), or a reaction product of an amine and a molybdenum compound having at least one pentavalent or hexavalent molybdenum atom.

Lubricating compositions comprising a molybdenum-containing amine compound

A lubricating composition containing an organic molybdenum compound having excellent oxidation stability that provides lubricity for long periods of time is provided. The lubricant comprises a molybdenum amine compound obtained by reacting a compound containing a hexavalent molybdenum atom with an amine represented by the following formula (1): where each of R 1 to R 3 represents a hydrogen atom and/or a hydrocarbon group having one or more carbon atoms, and at least one of R 1 to R 3 is a chain hydrocarbon group having 14 or more carbon atoms, or the following formula (2) wherein R 4 represents a chain hydrocarbon group having 10 or more carbon atoms, s represents 0 or 1, X and/or Y represents a hydrogen atom, a hydrocarbon group having at least one carbon atom, an alkanol group having 2 to 4 carbon atoms or an alkyl amino group having at least one carbon atom, and X and Y are not hydrogen atoms or hydrocarbon groups at the same time when s is 0. A lubricating composition containing the lubricant is also provided.

Method for lubricating surfaces

A method of lubricating an aluminum alloy surface or a ferrous surface which comprises supplying to said surface a lubricating oil composition comprising an oil of lubricating viscosity and an effective friction reducing amount of an oil soluble trinuclear organo-molybdenum compound.

Lubricating compositions containing sulphonates and phenates

A lubricating composition containing: (a). at least 3 weight percent of an overbased sulphonate detergent with a metal ratio of about 12.5:1 to about 40:1; (b). at least 1.5 weight percent of a sulphur containing phenate detergent with a metal ratio of not more than 2.5; and (c). an oil of lubricating viscosity, wherein the sulphur containing phenate contains oligomers of hydrocarbyl phenol with at least 50 wt % of said oligomers in the form of the tetramer or higher oligomers. The composition is suitable for internal combustion engines, particularly marine diesel applications to provide improved cleanliness decreased cylinder wear and reduced deposits.

Lubricating compositions

A method of lubricating an internal combustion engine with a power output of at least 1600 kilowatts, with a lubricating composition, the method comprising: (1) monitoring one or more performance characteristics of the engine; (2) selecting an additive package to provide a desired TBN level to a lubricating composition to modify the performance characteristics of the engine; (3) combining the additive package of step (2) with (a) a component having a viscosity of about 2 mm2/s to 12 mm2/s, comprising a light neutral base oil, and optionally (b) a component having a viscosity of above 12 mm2/s to about 40 mm2/s, comprising heavy neutral base oil or a brightstock, to form a lubricating composition; and (4) supplying the lubricating composition of step (3) to the engine.

Controlled release of additives in fluid systems

A container ( 1 ) for releasing a chemical additive ( 7 ) in a fluid material selected from a lubricant or hydraulic fluid composition comprises a fluid material-impermeable casing ( 3 ) having a hollow interior and an additive composition ( 7 ) comprising at least one fluid material-soluble additive. The additive ( 7 ) is held within the container ( 1 ) by a least one fluid material-permeable element ( 11 ) provided at or near an opening ( 13 ) in the casing ( 1 ) and is effective to provide for release of additive(s) ( 7 ) into the fluid material. Methods of releasing additives ( 7 ) into fluid material are also provided.

Stabilized blends containing friction modifiers

The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and phosphorus-containing friction modifiers, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.

Stabilized blends containing antioxidants

The present invention relates to functional fluid compositions containing antioxidants, and specifically stable compositions containing antioxidants with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and antioxidants containing a phenolic or benzoic group, where the antioxidant is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.

Diesel fuel composition comprising a quaternary ammonium salt detergent

A quaternary ammonium salt detergent made from the reaction product of the reaction of: (a) a hydrocarbyl substituted acylating agent and a compound having an oxygen or nitrogen atom capable of condensing with said acylating agent and further having a tertiary amino group; and (b) a quaternizing agent suitable for converting the tertiary amino group to a quaternary nitrogen and the use of such quaternary ammonium salt detergent in a fuel composition to reduce intake valve deposits.

Controlled release of additives in fluid systems

A container ( 1 ) for releasing a chemical additive ( 7 ) in a fluid material selected from a lubricant or hydraulic fluid composition comprises a fluid material-impermeable casing ( 3 ) having a hollow interior and an additive composition ( 7 ) comprising at least one fluid material-soluble additive. The additive ( 7 ) is held within the container ( 1 ) by a least one fluid material-permeable element ( 11 ) provided at or near an opening ( 13 ) in the casing ( 1 ) and is effective to provide for release of additive(s) ( 7 ) into the fluid material. Methods of releasing additives ( 7 ) into fluid material are also provided.

Controlled release of additives in fluid systems

A container ( 1 ) for releasing a chemical additive ( 7 ) in a fluid material selected from a lubricant or hydraulic fluid composition comprises a fluid material-impermeable casing ( 3 ) having a hollow interior and an additive composition ( 7 ) comprising at least one fluid material-soluble additive. The additive ( 7 ) is held within the container ( 1 ) by a least one fluid material-permeable element ( 11 ) provided at or near an opening ( 13 ) in the casing ( 1 ) and is effective to provide for release of additive(s) ( 7 ) into the fluid material. Methods of releasing additives ( 7 ) into fluid material are also provided.

Controlled release of additives in fluid systems

A container ( 1 ) for releasing a chemical additive ( 7 ) in a fluid material selected from a lubricant or hydraulic fluid composition comprises a fluid material-impermeable casing ( 3 ) having a hollow interior and an additive composition ( 7 ) comprising at least one fluid material-soluble additive. The additive ( 7 ) is held within the container ( 1 ) by a least one fluid material-permeable element ( 11 ) provided at or near an opening ( 13 ) in the casing ( 1 ) and is effective to provide for release of additive(s) ( 7 ) into the fluid material. Methods of releasing additives ( 7 ) into fluid material are also provided.

Controlled release of additives in fluid systems

A container ( 1 ) for releasing a chemical additive ( 7 ) in a fluid material selected from a lubricant or hydraulic fluid composition comprises a fluid material-impermeable casing ( 3 ) having a hollow interior and an additive composition ( 7 ) comprising at least one fluid material-soluble additive. The additive ( 7 ) is held within the container ( 1 ) by a least one fluid material-permeable element ( 11 ) provided at or near an opening ( 13 ) in the casing ( 1 ) and is effective to provide for release of additive(s) ( 7 ) into the fluid material. Methods of releasing additives ( 7 ) into fluid material are also provided.

Fuel composition comprising a quaternary ammonium salt detergent

A quaternary ammonium salt detergent made from the reaction product of the reaction of: (a) a hydrocarbyl substituted acylating agent and a compound having an oxygen or nitrogen atom capable of condensing with said acylating agent and further having a tertiary amino group; and (b) a quaternizing agent suitable for converting the tertiary amino group to a quaternary nitrogen and the use of such quaternary ammonium salt detergents in a fuel composition to reduce intake valve deposits.

Method of lubricating an internal combustion engine

The invention provides a method of lubricating a compression-ignition internal combustion engine with a maximum laden mass over 2,700 kg comprising supplying to the engine a lubricating composition comprising: an oil of lubricating viscosity, 1.5 wt % to 10 wt % of an ashless dispersant, a 300 TBN or higher alkaline earth metal sulphonate detergent having a metal ratio of 10 to 40, and a 80 TBN or lower alkaline earth metal sulphonate detergent having a metal ratio of 1 to 5, wherein the lubricating composition comprises 0 wt % to 0.2 wt % of a phenolic based detergent, the ratio of higher alkaline earth metal sulphonate detergent to lower alkaline earth metal sulphonate detergent is 80:20 to 20:80, the total amount of soap delivered by the calcium sulphonate detergents is 0.4 wt % to 1.5 wt % of the lubricating composition, and the lubricating composition has a sulphated ash content of not more than 1.5 wt %.

Trunk piston engine lubricating oil compositions

Disclosed herein is a trunk piston engine lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity; (b) one or more carboxylate-containing detergents comprising a salt of an alkyl-substituted hydroxyaromatic carboxylic acid, wherein at least about 50% of the alkyl moiety of the alkyl-substituted hydroxyaromatic carboxylic acid comprises C 26+ alkyl groups derived from one or more normal alpha olefins; and (c) one or more zinc dithiophosphates in an amount of about 0.02 to about 0.12 wt. % in terms of phosphorus content.

Multigrade lubricating compositions

Multigrade lubricating oils which have acceptable performance in the VWInTD and Sequence VE engine tests and which are based on an ashless dispersant comprising an oil-soluble polymeric backbone having functional groups in which the hydrocarbon backbone is derived from an ethylene alpha-olefin (EAO) copolymers or alpha-olefin homo- or copolymer having greater than 30% of terminal vinylidene unsaturation achieve this performance by use of a detergent combination which includes a phenate in the formulation of the oils.

一种以高炉矿渣为原料制备钢铁成型用高温润滑剂的方法

本发明涉及一种以高炉矿渣为原料制备钢铁成型用高温润滑剂的方法，将低品位尾料钢渣磁选全铁小于10％钢渣，和水球磨掺入减水助磨剂；出磨的钢渣料浆与氧化钠、氧化硅、氧化硼：水进行混合得混合料，放入均相水热反应仪反应，结束后冷却至室温，将最终反应物过滤，干燥即可得到所需高温润滑剂。本发明可提高钢渣的利用率，通过水热反应将筛选的废弃物矿渣粉末通过二次利用，转化为高温润滑剂，使废弃钢渣变废为宝，可降低外部购入高温润滑剂所造成的成本，提高社会经济效益。本发明减少因堆放和填埋造成的土壤污染和水体污染等，实现钢渣的资源化处理，具有良好的经济、社会和环境效益，符合国家的固体废弃物综合利用的政策导向。

Mineral oil composition

Lubricating oil composition with antiwear performance

The present invention relates to a lubricating oil composition containing: (1) an antiwear package comprising: (a) a hydrocarbyl phosphate and amine salt thereof; and (b) an alkylene coupled adduct of a hydrocarbyl substituted dithiophosphoric acid and a α,β-unsaturated carbonyl containing compound; (2) an antioxidant package comprising: (a) a hydrocarbyl diphenylamine; and (b) a sterically hindered phenol; (3) a metal deactivator; and (4) an oil of lubricating viscosity. The invention further relates to the process to make the lubricating oil composition and its use in industrial fluids especially hydraulic fluids.

柴油机油组合物

本发明公开了一种柴油机油组合物，其含有润滑油基础油和一种或多种金属清净分散剂，该金属清净分散剂选自高碱性碱土金属磺酸盐、酚盐和水杨酸盐。该组合物的总的磷的含量抑制在100ppm(重)或更少，由此提供具有很好的氧化安定性和耐磨性能的柴油机油组合物。

一种低味、低腐蚀齿轮润滑油添加剂组合物及其制备方法

一种低味、低腐蚀齿轮润滑油添加剂组合物及其制备方法，它包括以下原料：极压剂、抗磨剂、摩擦改进剂、防锈剂、金属减活剂、抗氧剂、矿物基础油。制备时，在调合釜中，将原料混合搅拌至均匀透明，得到齿轮润滑油添加剂。优点是：该齿轮润滑油添加剂组合物气味小、无刺激，不含氯，对环境危害小，并具有较好的极压抗磨性能、抗乳化性、防锈防腐蚀性、抗氧化性和抗泡性。

润滑油组合物及其制造方法

一种润滑油组合物，其是含有下述成分(A)～(C)的润滑油组合物：基础油(A)；钙系清净剂(B)，其选自碱值为5.00mgKOH/g以上且100mgKOH/g以下的磺酸钙(B1)、具有支链状的非环式烃基的水杨酸钙(B2)、和具有支链状的非环式烃基的过碱性的苯酚钙(B3)的1种以上；以及无灰系清净剂(C)，其选自在1分子内具有1个哌啶衍生骨架的受阻胺化合物(C1)、和特定的二乙醇胺化合物(C2)的1种以上，其中，以上述润滑油组合物的总量基准计，钙原子的含量为100质量ppm以上且600质量ppm以下，上述无灰系清净剂(C)的氮原子的含量(N C )与上述钙系清净剂(B)的钙原子的含量(Ca B )之比(N C /Ca B )以质量比计为1.3～3.1。

Heat treatment oil composition for gears and gears processed using the same

Lubricating oil compositions and methods for lubricating gasoline-fueled and/or alcohol-fueled, spark-ignited engines

A lubricating oil composition is described which is useful in spark-ignited engines which may be fueled with gasoline, alcohol, or mixtures of both. More particularly, lubricating oil compositions for spark-ignited engines are described which comprise (A) an oil of lubricating viscosity; (B) at least one detergent selected from the group consisting of a basic magnesium salt of an organic acid or a mixture of at least one basic magnesium salt of an organic acid and another alkaline earth metal salt of an organic acid wherein the metal in the mixture is predominantly magnesium; and (C) at least one metal salt of (C-1) a substituted succinic acid acylated polyamine; or (C-2) a hydrocarbon-substituted aromatic carboxylic acid containing at least one hydroxyl group attached to an aromatic ring, provided that the metal of said metal salt (C) is not calcium or magnesium. Lubricants primarily useful for lubricating alcohol-fueled, spark-ignited engines also are described which comprise (A) a lubricating oil, (B) a detergent as described above, and (D) at least one carboxylic acid derivative composition useful as a dispersant. The oil compositions of the invention also may contain, and generally do contain other desirable additives such as (E) mixtures of metal salts of dihydrocarbyl phosphorodithioic acids; (F) sulfurized olefins; etc. In one embodiment, the oil compositions of the present invention contain the above additives and other additives described in the specification in amounts sufficient to enable the oil to meet all the performance requirements of the API Service Classification identified as "SG".

Lubricating oil containing a nickel alkoxyalkylxanthate, a dixanthogen, and zinc dialkyldithiophosphate

The addition of a metal alkoxyalkylxanthate, a dixanthogen, and a metal thiophosphate to a lubricating oil results in a synergistic improvement in the antiwear performance of the oil. Nickel ethoxyethylxanthate, diethoxyethyl dixanthogen, and zinc dialkyldithiophosphate are particularly preferred additives.

Additive compositions for lubricants and functional fluids

This invention relates to a composition, comprising: (A) a compound represented by the formula ##STR1## wherein in Formula (A-I), G 1 and G 2 are independently R, OR, SR or NRR wherein each R is independently a hydrocarbyl group, X 1 and X 2 are independently O or S, and n is zero to 3; and (B) an acylated nitrogen-containing compound having a substituent of at least 10 aliphatic carbon atoms. In one embodiment, the inventive composition further comprises (C) a phosphorus compound. In one embodiment, the inventive composition further comprises (D) an alkali or alkaline earth metal salt of an organic sulfur acid, carboxylic acid or phenol. In one embodiment, the inventive composition further comprises (E) a thiocarbamate. These compositions are useful in providing lubricating compositions and functional fluids with enhanced antiwear properties.

Lubricating oil composition for diesel engines

Mannich dispersant vi-improver blended with phenolic compound for improved storage stability

潤滑油組成物

Synergistische mischung

Synergistische Mischung, umfassend 1 bis 99,9 Gew.-% Verbindungen mit Strukturelementen (I) in denen die freien Valenzen am Sauerstoff- und am Stickstoffatom zu einem fünf-, sechs- oder siebengliedrigen Ring zusammengeschlossen sein können und der Benzolkern noch an einer oder mehreren der freien Positionen Substituenten tragen kann, und 0,1 bis 99 Gew.-% schwefelhaltige organische Verbindungen mit Antioxidanz-Wirkung. Diese synergistische Mischung eignet sich als Stabilisator zur Stabilisierung von unbelebtem organischen Material, insbesondere von Mineralölprodukten und Kraftstoffen, gegen die Einwirkung von Licht, Sauerstoff und Wärme.

一种齿轮油添加剂、齿轮润滑油及其制备方法与应用

本发明属于润滑剂领域，具体涉及一种齿轮油添加剂、齿轮润滑油及其制备方法与应用。所述的齿轮油添加剂，包含如下按质量份计的组分：纳米级铜粉1～3份、纳米级二氧化硅2～5份、纳米级氧化铝3～6份、纳米级石墨2～5份、微米级氧化铅1～4份和微米级二硫化钼3～6份。本发明还提供了一种包含上述齿轮油添加剂的齿轮润滑油，该齿轮润滑油不仅可以降低摩擦副的启动磨损及边界润滑状态下的硬摩擦，还对齿轮啮合面上的凹坑或凸起进行机械微修复和抛光，可以使齿轮齿面硬度值提高15％左右，啮合面粗糙度Ra的值降低5～10％，振动噪声降低6～11％。

오일-기반 부식 저해제

a) 금속 세제 및 b) 적어도 하나의 히드로카르빌-치환된 카르복시산을 포함하는 산을 포함하는 조성물. 금속 세제는 적어도 하나의 알칼리 금속, 알칼리 토금속, 또는 이의 조합을 포함한다. 금속 세제 a) 대 산 b)의 중량비는 50:1 내지 1:10, 또는 25:1 내지 1:10, 또는 10:1 내지 1:10, 또는 5:1 내지 1:7, 또는 2:1 내지 1:3의 범위이다. 조성물은 금속 구성성분의 부식을 감소시키기 위해 산업용 코팅물 또는 윤활 조성물에 첨가될 수 있다.

Stabilising synergistic mixture and use thereof

FIELD: chemistry. SUBSTANCE: invention relates to a stabilising synergistic mixture containing 10-99 wt % of at least one compound with at least one structural element of formula (I): , wherein available bonds of the oxygen atom and the nitrogen atom can be closed to form a five-, six- or seven-member ring, and the benzene ring in one or more free positions can contain substitutes, and 1-90 wt % of at least one sulphur-containing organic compound, having antioxidant activity, wherein the sum of components (A) and (B) is equal to 100 wt %. The present invention also relates to use of the stabilising synergistic mixture as a stabiliser for stabilising oil products, fuel and turbine fuel and as a stabiliser for improving stability of lubricant compositions. EFFECT: obtaining an agent which improves protection from the harmful effect of light, oxygen and heat. 3 cl, 4 ex, 2 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C10L C10L C10L C10L C10L C10L ФЕДЕРАЛЬНАЯ СЛУЖБА C10M ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ C10M C10M C10M (12) ОПИСАНИЕ 2 480 514 1/14 (2006.01) 1/222 (2006.01) 1/233 (2006.01) 1/238 (2006.01) 1/24 (2006.01) 10/04 (2006.01) 141/08 (2006.01) 141/06 (2006.01) 163/00 (2006.01) 165/00 (2006.01) (13) C2 C10N 30/08 (2006.01) C10N 30/10 (2006.01) ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010105082/04, 10.07.2008 (24) Дата начала отсчета срока действия патента: 10.07.2008 (72) Автор(ы): ЛАНГЕ Арно (DE), ПОССЕЛЬТ Дитмар (DE) R U (73) Патентообладатель(и): БАСФ СЕ (DE) Приоритет(ы): (30) Конвенционный приоритет: 16.07.2007 EP 07112530.6 (43) Дата публикации заявки: 27.08.2011 Бюл. № 24 2 4 8 0 5 1 4 (45) Опубликовано: 27.04.2013 Бюл. № 12 2 4 8 0 5 1 4 R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.02.2010 C 2 C 2 (56) Список документов, цитированных в отчете о поиске: US 4402840 A, 06.09.1983. WO 03/038015 A2, 08.05.2003. Кулезнев B.H., Шершнев B.A. Химия и физика полимеров, 1988. СА 2616675 А1, 01.02.2007. WO 03/106595 А2, 24.12.2003. (86) ...

Lubricating oil composition

Composition of lubricating oils containing titanium

FIELD: chemistry. SUBSTANCE: composition can be used to lubricate internal combustion engines. The composition contains: at least one succinimide-based dispersant, a metal-containing detergent, at least one antioxidant, as well as a hydrocarbon-soluble titanium compound - derivative of titanium alkoxide with a C 6 -C 25 carboxylic acid. Preferably, the titanium compound is a product of reaction of titanium alkoxide with neodecanoic acid. Described also is a lubricated surface, a method of reducing carbon deposits in an internal combustion engine and a lubricant additive concentrate. EFFECT: reduced formation of carbon deposits. 22 cl, 2 tbl, 3 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 449 006 (13) C2 (51) МПК ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ C10M C10M C10M C10M C10N C10N C10N 163/00 (2006.01) 129/26 (2006.01) 133/16 (2006.01) 159/20 (2006.01) 10/08 (2006.01) 30/04 (2006.01) 40/25 (2006.01) ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2007145230/04, 05.12.2007 (24) Дата начала отсчета срока действия патента: 05.12.2007 (73) Патентообладатель(и): АФТОН КЕМИКАЛ КОРПОРЕЙШН (US) R U Приоритет(ы): (30) Конвенционный приоритет: 06.12.2006 US 11/567,469 (72) Автор(ы): ГИНТЕР Грегори Х. (US) (43) Дата публикации заявки: 10.06.2009 Бюл. № 16 2 4 4 9 0 0 6 (45) Опубликовано: 27.04.2012 Бюл. № 12 Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", Е.Е.Назиной карбоновой кислотой. Предпочтительно, соединение титана представляет собой продукт реакции алкоксида титана с неодекановой кислотой. Описывается также поверхность со смазкой, способ уменьшения образования углеродистых отложений в двигателе внутреннего сгорания и концентрат присадок к смазке. Технический результат - уменьшение образования углеродистых отложений. 4 н. и 18 з.п. ф-лы, 2 табл., 3 пр. R U 2 4 4 9 0 0 6 (54) КОМПОЗИЦИИ СМАЗОЧНЫХ МАСЕЛ, СОДЕРЖАЩИЕ ТИТАН (57) Реферат: Использование: для смазывания двигателей внутреннего сгорания. ...

润滑油组合物和火花点火式燃汽油和/或燃醇发动机的润滑方法

本发明涉及可用于以汽油、醇或二者的混合物为 燃料的发动机的润滑油。所述润滑油含有(A)具有 润滑粘度的油；(B)至少一种清净剂；和(C)至少一种 酰化多胺的金属盐或取代芳族羧酸的金属盐，但不是 钙盐或镁盐。主要用于燃醇发动机的润滑油含有上 述(A)和(B)，以及(D)用作分散剂的至少一种羧酸 衍生物。本发明的润滑油组合物还含有其它所需的 添加剂如(E)二烃基二硫代磷酸金属盐混合物，(F) 硫化烯烃等。

润滑油组合物

本发明涉及润滑油组合物。含有基础油（A）、二硫代氨基甲酸钼（B）、酯系无灰摩擦调节剂（C）和金属水杨酸盐（D）的润滑油组合物，其中源于成分（B）的钼原子的含量以组合物总量基准计为650质量ppm以上，成分（C）相对于源于成分（B）的钼原子的含有比率［C/B Mo ］以质量比计为5.0～10，源于成分（D）的水杨酸盐皂基的含量以组合物总量基准计为0.50质量%以上，100℃时的运动粘度为4.0mm 2 /s以上且小于9.3mm 2 /s，且150℃时的高温高剪切粘度为1.7mPa・s以上且小于2.9mPa・s，将二硫代氨基甲酸钼和无灰摩擦调节剂并用，可在润滑开始后早期地降低摩擦且可维持该状态的低粘度化。

Overbased calcium salicylate based lubricants

FIELD: chemistry. SUBSTANCE: method of producing a non-Newtonian oil composition in form of a lubricant involves steps for heating overbased calcium salicylate with metal content ranging from 4 to 20%, amorphous calcium carbonate, water and a converting agent which contains a fatty acid with 12-24 carbon atoms in an oil medium, and subsequent addition of a mixture of a sufficient amount of alcohol and carbon dioxide in order to complete conversion of amorphous calcium carbonate to calcite. Also described is a method of producing a non-Newtonian oil composition in form of a lubricant containing overbased calcium salicylate, solid particles of colloidally dispersed calcium carbonate in form of calcite and calcium borate. The lubricant contains 28-35% overbased calcium salicylate with metal content ranging from 4 to 20%, oil carrier, calcium carbonate in form of calcite, 1.1-6.7% calcium borate and 1.1-6.5% calcium soap of a soap-forming aliphatic monocarboxylic acid containing at least 12 carbon atoms. EFFECT: improved high-temperature properties of the lubricant. 7 cl, 1 tbl, 6 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 382 071 (13) C2 (51) МПК C10M 177/00 (2006.01) C10M 159/20 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2007107382/04, 22.06.2005 (24) Дата начала отсчета срока действия патента: 22.06.2005 (73) Патентообладатель(и): КЕМТУРА КОРПОРЕЙШН (US), КЕМТУРА КЭНАДА КО./КО (CA) (43) Дата публикации заявки: 10.09.2008 2 3 8 2 0 7 1 (45) Опубликовано: 20.02.2010 Бюл. № 5 (56) Список документов, цитированных в отчете о поиске: US 5338467 A, 16.08.1994. US 5259966 A, 09.11.1993. EP 0580335 A1, 26.01.1994. RU 2118653 C1, 10.09.1998. RU 2068443 C1, 27.10.1996. US 4719023 A, 12.01.1988. EP 0351052 A2, 17.01.1990. 2 3 8 2 0 7 1 R U (86) Заявка PCT: US 2005/022345 (22.06.2005) C 2 C 2 (85) Дата перевода заявки PCT на национальную фазу: 28.02.2007 (87) Публикация PCT: WO 2006 ...

Marine engine lubrication

A trunk piston lubricating oil composition of TBN 20 to 60 comprising (A) a high saturates low sulphur oil of lubricating viscosity in a major amount; (B) an overbased metal hydroxybenzoate detergent additive; (C) a polyisobutene succinic anhydride additive (1-7 mass %); and (D) a meta-linear pentadecyl phenol additive (10.1 to 10 mass %), the weight ratio of (D) to (C) being less than 1 and the combined treat rate of (B), (C) and (D) being 5 to 30 %. The composition is useful to improve asphaltene dispersancy when lubricating a medium-speed compression-ignited marine engine fuelled by a heavy fuel oil.

Marine engine lubrication

A trunk piston marine engine lubricant comprises in respective minor amounts (A) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent system, and (B) a hydrocarbyl-subsituted succinic acid anhydride, preferably made by halogen- or radical-assisted functionalization processes, where the ratio of succinic anhydride to hydrocarbyl chains is in the range of 1.4 to 4. The lubricant, when used to lubricate such an engine fuelled by heavy fuel oil, exhibits improved control of asphaltene precipitation and deposition on engine surfaces.