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公开(公告)号：EP1027412A1
公开(公告)日：2000-08-16
申请号：EP98952381.6
申请日：1998-10-20
IPC分类号： C10M161/00
CPC分类号： C10M141/10 , C10M129/93 , C10M129/95 , C10M133/52 , C10M137/10 , C10M2207/10 , C10M2207/129 , C10M2207/24 , C10M2207/28 , C10M2207/34 , C10M2215/04 , C10M2215/042 , C10M2215/08 , C10M2215/082 , C10M2215/086 , C10M2215/22 , C10M2215/221 , C10M2215/225 , C10M2215/226 , C10M2215/24 , C10M2215/26 , C10M2215/28 , C10M2215/30 , C10M2217/046 , C10M2217/06 , C10M2223/045 , C10N2210/02 , C10N2240/02 , C10N2240/04 , C10N2240/042 , C10N2240/044 , C10N2240/046 , C10N2240/08 , C10N2240/10 , C10N2240/101 , C10N2240/102 , C10N2240/103 , C10N2240/104 , C10N2240/106
摘要： A lubricating oil composition comprising oil, and an additive combination comprising a poly alpha-olefin polymer dispersant with a number average molecular weight above 2500, and a metal dihydrocarbyl dithiophosphate sufficient to yield a phosphorous content of up to 0.1 percent weight based on the total weight of the oil. The poly alpha-olefin polymer can be ethylene alpha-olefin copolymer such as ethylene-1-butene or ethylene-1-butene-hydrocarbyl polyamine. Preferably, the ethylene-1-butene-hydrocarbyl polyamine has a number average molecular weight of about 3300.
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2.发明公开CRANKCASE LUBRICANT COMPOSITIONS AND METHOD OF IMPROVING ENGINE DEPOSIT PERFORMANCE 审中-公开浸透性润滑剂成分和方法，MOTOR减少沉积物
公开(公告)号：EP1062309A1
公开(公告)日：2000-12-27
申请号：EP98952380.8
申请日：1998-10-20
IPC分类号： C10M159/20
CPC分类号： C10M163/00 , C10M129/10 , C10M129/40 , C10M129/58 , C10M133/56 , C10M135/10 , C10M135/30 , C10M137/10 , C10M159/16 , C10M159/24 , C10M2207/023 , C10M2207/026 , C10M2207/027 , C10M2207/028 , C10M2207/125 , C10M2207/126 , C10M2207/129 , C10M2207/144 , C10M2207/146 , C10M2207/16 , C10M2207/262 , C10M2215/04 , C10M2215/086 , C10M2215/26 , C10M2215/28 , C10M2217/043 , C10M2217/046 , C10M2217/06 , C10M2219/044 , C10M2219/046 , C10M2219/087 , C10M2219/088 , C10M2219/089 , C10M2223/045 , C10M2223/065 , C10N2210/00 , C10N2210/01 , C10N2210/02 , C10N2240/10 , C10N2240/101 , C10N2240/104 , C10N2240/106
摘要： A low phosphorus passenger car motor oil containing an oil of lubricating viscosity as the major component and a tri-metal detergent mixture as a minor component, wherein the tri-metal detergent mixture comprises at least one calcium overbased metal detergent, at least one magnesium overbased metal detergent and at least one sodium overbased metal detergent, wherein the tri-metal detergent mixture is present in the oil composition in an amount such that the total TBN contributed to the oil composition by the tri-metal detergent mixture is from about 2 to about 12, and wherein the calcium overbased detergent contributes from about 8 to about 42% of the total TBN contributed by the tri-metal detergent mixture, the magnesium overbased detergent contributes from about 29 to about 60% of the total TBN contributed by the tri-metal detergent mixture, and the sodium overbased detergent contributes from about 15 to about 64% of the total TBN contributed by the tri-metal detergent mixture.
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