发明名称 MARINE ENGINE LUBRICATION
摘要 Lubricant additives comprising as overbased metal hydrocarbyl-substituted hydroxybenzoate detergent dispersed in diluent and a polyalkenyl-substituted carboxlic acid anhydride dispersed in a diluent oil containing 50 mass % or more of a basestock containing greater than or equal to 90% saturates and less than or equal to 0.03% sulphur or a mixture thereof are blended, in minor amounts, with a high saturates content oil of lubricating viscosity, in a major amount, to give trunk piston marine engine lubricating oil composition for a medium-speed four-stroke compression-ignited marine engine.
申请公布号 US2014221261(A1) 申请公布日期 2014.08.07
申请号 US201414174884 申请日期 2014.02.07
申请人 Infineum International Limited 发明人 Dodd James C.;Bradley-Shaw Joshua L.
分类号 C10M141/02 主分类号 C10M141/02
代理机构 代理人
主权项 1. A method of preparing a trunk piston marine engine lubricating oil composition for a medium-speed four-stroke compression-ignited marine engine comprising blending (A) a lubricant additive, in a minor amount, comprising an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent dispersed in diluent and (B) an additive comprising a polyalkenyl-substituted carboxylic acid anhydride as active ingredient dispersed in a diluent oil containing 50 mass % or more of a basestock containing greater than or equal to 90% saturates and less than or equal to 0.03% sulphur or a mixture thereof with (C) an oil of lubricating viscosity in a major amount that comprises 50 mass % or more of a basestock containing greater than or equal to 90% saturates and less than or equal to 0.03% sulphur.
地址 Abingdon GB