Abstract: The present invention relates to a grease composition including: a base oil; a thickener; a rust inhibitor; and an extreme pressure agent, in which the rust inhibitor includes, with respect to a total mass of the grease composition: 0.10 mass % to 10.00 mass % of a calcium sulfonate; 0.20 mass % to 10.00 mass % of a zinc sulfonate; and 0.10 mass % to 10.00 mass % of a zinc carboxylate, and the extreme pressure agent includes, with respect to the total mass of the grease composition, 2.00 mass % to 14.00 mass % of a zinc dialkyldithiophosphate.

Abstract: An anti-static fuel additive composition and method for using the composition to reduce or prevent buildup of electrostatic charge is described. The anti-static fuel additive composition comprises a polysulfone and a copolymer derived from reaction of an alkanolamine and a hydrocarbyl-substituted 4-membered to 7-memebered ring anhydride; for example, a hydrocarbyl-substituted succinic anhydride, a hydrocarbyl-substituted maleic anhydride, a hydrocarbyl-substituted phthalic anhydride, or a combination thereof.

Abstract: The present disclosure relates to lubricating compositions and methods of lubricating a spark-ignition engine effective to improve low-speed pre-ignition (LSPI) through selection of lubricant elemental relationships rather than through the addition of supplemental fluid additives with the added benefit that the relationships herein, in some circumstances, improve the low-speed pre-ignition independent of the underlying base oil quality. The lubricating compositions herein include one or more base oils of lubricating viscosity, one or more phosphorus-containing additives providing low levels of phosphorus, a detergent system providing calcium and/or magnesium with certain relationships of the calcium sulfated ash content to the low phosphorus content.

Abstract: A lubricant grease composition is disclosed, the lubricant grease composition including a base oil and a thickener. The thickener includes an aluminum-based complex soap and a polyurea thickener, wherein the lubricant grease is configured for lubrication of surfaces of components in which an upper use temperature of the lubricant grease composition is at least 90° C.

Abstract: Compositions comprising a) a metal detergent and b) an acid comprising at least one hydrocarbyl-substituted carboxylic acid. The metal detergent comprises at least one alkali metal, alkaline earth metal, or combinations thereof. The weight ratio of the metal detergent a) to the acid b) ranges from 50:1 to 1:10, or 25:1 to 1:10, or 10:1 to 1:10, or 5:1 to 1:7, or 2:1 to 1:3. The compositions may be added to industrial coating or lubricant compositions to reduce corrosion of metal components.

Abstract: A piston ring includes a substrate, and a film covering at least a part of a surface of the substrate. The film includes Si and N. A Si content of the film is in a range of 1.1 to 7.5 at %, a crystallite size of the film is in a range of 10 to 30 nm, and a compressive residual stress of the film is 400 to 800 MPa.

Abstract: A low friction wear surface with a coefficient of friction in the superlubric regime under a sliding and rolling movement. The low friction wear surface includes molybdenum disulfide and graphene oxide on a first wear surface with a tribolayer formed on a rough steel counter surface during the sliding and rolling movement. Methods of producing the low friction wear surface are also provided.

Abstract: Provided herein are methods for making a freeze-cast material having a internal structure, the methods comprising steps of: determining the internal structure of the material, the internal structure having a plurality of pores, wherein: each of the plurality of pores has directionality; and the step of determining comprises: selecting a temperature gradient and a freezing front velocity to obtain the determined internal structure based on the selected temperature gradient and the selected freezing front velocity; directionally freezing a liquid formulation to form a frozen solid, the step of directionally freezing comprising: controlling the temperature gradient and the freezing front velocity to match the selected temperature gradient and the selected freezing front velocity during directionally freezing; wherein the liquid formulation comprises at least one solvent and at least one dispersed species; and subliming the at least one solvent out of the frozen solid to form the material.

Abstract: Provided are a lubricant composition for shock absorbers, a lubricant additive, and a method of adjusting frictional property of a lubricant composition for shock absorbers, each capable of satisfying both the steering stability and ride comfort. The lubricant composition for shock absorbers contains a base oil and pentaerythritol esters and having frictional property represented by the following formula (1): RI>1.75×Fave?0.05??(1) supposing that a ratio ({Fsa?Fave}/Fave) of a difference, at the time of minute amplitude, between a peak frictional force Fsa in transition from a stationary state to a sliding state and an average frictional force Fave to the average frictional force Fave at the time of minute amplitude is responsiveness RI.

Abstract: There is provided a grease composition for improving the chemical stability of the grease composition and increasing the fatigue life of a member in which the grease composition is used. The problems can be solved by a grease composition including a poly-?-olefin; a urea-based thickener; molybdenum dithiophosphate; and barium sulfonate, wherein a difference between an SP value of the urea-based thickener and an SP value of the poly-?-olefin is 3.5 or less.

Abstract: The present invention is a method for cleaning hard articles including, cleaning a hard article to which an oil stain is adhered with a cleaning liquid containing 1 ppm or more and less than 500 ppm of (a) a branched alkyl sulfosuccinate ester having a branched alkyl group with 9 or 10 carbons and water.

Abstract: The invention relates to a method for preparing a composition of diesters comprising reacting an unsaturated compound of alcohol type or the ester thereof, with a saturated fatty acid, in the presence of an acid catalyst. The invention also relates to a composition of diesters that is obtainable by the method of the invention, and the use thereof in lubricating compositions or in cosmetic or pharmaceutical compositions.

Abstract: A refrigerating machine oil according to the present invention contains a lubricating base oil and alkylated hydroxyanisole, and a working fluid composition for a refrigerating machine according to the present invention contains the refrigerating machine oil and a refrigerant.

Abstract: This disclosure describes low ash lubricating composition achieving passing steel corrosion, passing high temperature deposit formation, and emulsion stability. The lubricating compositions include one or more select corrosion or rust inhibitor chemistries having an oil-soluble acyclic structure with acidic, hydroxy, or amine moieties but being free of imine, imide, and/or amidine moieties.

Abstract: This ball screw grease composition for a rack-assisted electric power steering contains a thickener, a base oil, and at least one compound selected from the group consisting of a Ca sulfonates, fatty acids, and triglycerides, wherein the kinematic viscosity of the base oil at 40° C. is 4-100 mm2/s, and the worked penetration of the composition is 265-385.

Abstract: The disclosed technology provides a lubricating composition and a method of lubricating an internal combustion engine where the lubricating composition contains an oil of lubricating viscosity, one or more metal-containing, sulfur-free, alkyl-phenol based detergents, an alkaline earth metal sulfonate detergent, a polyisobutenyl succinimide dispersant, and a dispersant viscosity modifier having a number average molecular weight of at least 20,000. The lubricating composition of the present invention can be formulated to have lower HTHS viscosity, and reduced phosphorous content, while providing protection against adhesive wear.

Abstract: An aspect of the present invention provides a refrigerating machine oil containing: a lubricating base oil; a phosphorus-containing additive; and a polymer comprising an unsaturated carboxylic acid ester as a monomer unit.

Abstract: An organophosphorus compound has a structure represented by the general formula (I): The functional groups are defined in the description. The organophosphorus compound has prominent bearing capacity and excellent antiwear and antifriction performances, and can be used as an extreme pressure antiwear additive and used in lubricating oil and lubricating grease.

Abstract: The present invention is a lubricating agent containing a compound represented by the following formula 1: wherein R1 and R2 each represent a hydrocarbon group with 6 or more and 24 or less carbons; A1O and A2O each represent an alkyleneoxy group with 2 or more and 4 or less carbons; x1 and x2 are average numbers of added moles, and each represent a number of 0 or more and 10 or less; and M is a cationic ion.

Abstract: A slurry sprayer for supplying a slurry to a wire saw during ingot slicing is disclosed. The slurry sprayer includes a main body and a cover plate that is detachable from the main body for cleaning the slurry sprayer. In some embodiments, the slurry sprayer includes an adjustable support that allows the incline angle of the sprayer to be adjusted and allows the vertical and horizontal position of the slurry sprayer to be adjusted. In some embodiments, the slurry sprayer includes two feed openings to allow the slurry pressure to be more equalized across the slurry sprayer.