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Anti-wear hydraulic fluid composition with useful emulsifying and rust prevention performance
Anti-wear hydraulic fluid composition with useful emulsifying and rust prevention performance
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机译:具有有用的乳化和防锈性能的抗磨液压油组合物
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摘要
Disclosed are antiwear hydraulic fluid compositions comprising (a) a major amount of a base oil of lubricating viscosity and (b) a minor amount of at least one oil soluble detergent additive comprising a salt of an alkyl-substituted hydroxybenzoic acid or a sulfurized derivative thereof, wherein said salt is selected from the group consisting of alkali metal salts, alkaline earth metal salts, ammonium salts or substituted ammonium salts, and further wherein said antiwear hydraulic fluid compositions have a Carboxylate Index of greater than levels disclosed herein.
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