Phosphate ester base stocks comprising mixed n-butyl/isobutyl phosphate esters and aircraft hydraulic fluids comprising the same
申请人:——
公开号:US20030001133A1
公开(公告)日:2003-01-02
Disclosed are phosphate ester base fluids and aircraft hydraulic fluids containing mixed n-butyl/isobutyl phosphate ester components. The disclosed aircraft hydraulic fluids contain from about 30 to about 95 weight percent, based on the total weight of the fluid, of n-butyl diisobutyl phosphate or di-n-butyl isobutyl phosphate or a mixture thereof; from 0 to about 15 weight percent, based on the total weight of the fluid, of one or more triaryl phosphates; and an effective amount of a viscosity index improver, an acid control additive and an erosion inhibitor.
本发明涉及磷酸酯基流体和含有混合正丁基/异丁基磷酸酯组分的飞机液压油。所述的飞机液压油包含从总体重量的约30至95重量%的正丁基二异丁基磷酸酯或二正丁基异丁基磷酸酯或其混合物;从0至约15重量%的一种或多种三芳基磷酸酯;以及有效量的粘度指数改进剂、酸控制添加剂和侵蚀抑制剂。