摘要:
The invention provides a lubricating composition comprising an oil of lubricating viscosity and an amine-functionalized additive, wherein the amine-functionalized additive is derived from an amine having at least 3 aromatic groups, at least one —NH2 functional group, and at least 2 secondary or tertiary amino groups. The invention further provides for the additive to have improved thermal and oxidative stability modifying properties. The lubricating composition may include circulating oils, turbine oils, hydraulic fluids, transformer oils and greases as well as others that require good oxidation stability and good rust inhibition properties.
摘要:
The invention provides a method of lubricating a mechanical device by supplying a lubricating composition containing an oil of lubricating viscosity and a compound having 2 to 20 hydroxy-carboxylic acid residues. The invention further relates to the use of the compound in a driveline device to provide at least one of antiwear performance, friction modification (particularly for enhancing fuel economy).
摘要:
The invention relates to a lubricating composition containing (a) an N-substituted malimide, and (b) an oil of lubricating viscosity. The invention further provides for the use of the lubricating composition for lubricating a limited slip differential.
摘要:
The present invention relates to a lubricating composition containing an oil of lubricating viscosity and a star polymer that has at least two inner blocks, at least one of which is in turn bonded to one or more outer blocks. The invention further relates to methods of lubricating a mechanical device with the lubricating composition.
摘要:
The invention relates to an improved food-grade-lubricant useful as hydraulic oil, circulating oil, drip oil, general purpose oil, grease base oil, cable oil, chain oil, spindle oil, gear oil, and compressor oil for equipment in the food service industry. Specifically, it relates to a composition comprising at least one polyalphaolefin base fluid, at least one food grade polyolester base fluid, and at least one food grade performance additive.
摘要:
The present disclosure relates to a non-acidic, sulfur-containing, phosphorus-containing compound of the formula I where R1, R2, R3, R4, R5, R6, and R7 are as defined herein. Such a compound may exhibit improved antiwear performance and thermal stability in lubricating compositions.
摘要:
The present disclosure relates to a non-acidic, sulfur-containing, phosphorus-containing compound of the formula I where R1, R2, R3, R4, R5, R6, and R7 are as defined herein. Such a compound may exhibit improved antiwear performance and thermal stability in lubricating compositions.
摘要:
A lubricant composition and a method of lubricating off-road vehicles and/or machinery. The lubricant composition includes (i) a base oil, (ii) at least one ashless component (A) having the structure P(═S)(SR1)(OR2)(OR3), wherein R1, R2 and R3 are independently selected form the group consisting of alkyl, aryl, alkylaryl, cycloalkyl, alcohol, carboxylic acid and ester having 1 to 24 carbon atoms; and (iii) at least one component (B) being a metal dialkyl dithio phosphate salt. The total of ashless components (A) provides to the lubricant composition from 0.010 to 0.080 wt. % phosphorus based on the total weight of the lubricant composition and the total of components (B) provides to the lubricant composition from 0.010 to 0.080 wt. % phosphorus based on the total weight of the lubricant composition.
摘要:
The present invention relates to lubricating compositions and particularly gear oil compositions that include a minimum level of a specific antioxidant component, where the antioxidant component includes (i) a phenolic antioxidant, (ii) an aminic antioxidant, or (iii) a combination thereof, where the antioxidant component is present in the lubricating composition at from 1.0 percent by weight or higher. Such compositions provide surprisingly good seal compatibility.
摘要:
Disclosed is a lubricant composition for use in association with a device involving metal-to-metal contact of moving parts, the composition comprising (a) a base stock comprising at least one low viscosity poly-alpha-olefin; (b) a viscosity improver comprising at least one high viscosity poly-alpha-olefin; and (c) a performance additive comprising at least one compound effective to improve at least one property of the lubricant and/or the performance of the equipment in which the lubricant is to be used.