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US5531911A Metal free hydraulic fluid with amine salt 失效
无金属液压油与胺盐

Metal free hydraulic fluid with amine salt
摘要:
Functional fluids comprising an oil of lubricating viscosity, the reaction product of an amine and a sulfonic acid, and at least one sulfur-containing compound of the structure(RX).sub.3 P.dbd.Xwhere X is sulfur or oxygen exhibit good anti-rust and antiwear performance.
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