公开(公告)号：US20170275555A1

公开(公告)日：2017-09-28

申请号：US15318733

申请日：2015-06-17

申请人： SHELL OIL COMPANY

发明人： Mark Clift SOUTHBY ,  Hong GAO ,  Cheng CHEN ,  Coleen Anne CHIN ,  Brian Lee PAPKE

IPC分类号： C10M139/00 ,  C10M133/08 ,  C10M129/76

CPC分类号： C10M139/00 ,  C10M129/76 ,  C10M133/08 ,  C10M163/00 ,  C10M169/044 ,  C10M2205/02 ,  C10M2205/026 ,  C10M2205/04 ,  C10M2205/173 ,  C10M2207/02 ,  C10M2207/026 ,  C10M2207/028 ,  C10M2207/262 ,  C10M2207/283 ,  C10M2207/34 ,  C10M2209/084 ,  C10M2209/102 ,  C10M2209/11 ,  C10M2209/111 ,  C10M2209/112 ,  C10M2215/064 ,  C10M2215/082 ,  C10M2215/26 ,  C10M2215/28 ,  C10M2217/044 ,  C10M2219/046 ,  C10M2223/042 ,  C10M2223/045 ,  C10M2227/09 ,  C10N2210/06 ,  C10N2220/021 ,  C10N2220/022 ,  C10N2230/02 ,  C10N2230/06 ,  C10N2230/54 ,  C10N2230/68 ,  C10N2240/10 ,  C10M2219/068 ,  C10N2210/02

摘要： A lubricating composition for use in the crankcase of an engine comprising (i) a base oil; (ii) one or more organo-molybdenum compounds at a level sufficient to provide from 100 to 1000 ppmw of molybdenum; and (iii) from 0.2 wt % to 5.0 wt %, by weight of the lubricating composition, of one or more organic polymeric friction reducing additives, wherein the one or more organic polymeric friction reducing additives has a molecular weight ranging from 1000 to 30000 Daltons and is the reaction product of: a) a hydrophobic polymeric sub unit which comprises a hydrophobic polymer selected from polyolefins, polyacrylics and polystyrenyls; b) a hydrophilic polymeric sub unit which comprises a hydrophilic polymer selected from polyethers, polyesters, polyamides; c) optionally at least one backbone moiety capable of linking together polymeric sub units; and d) optionally a chain terminating group. The lubricating composition provides improvements in terms of reduced friction and wear, in addition to improved fuel economy performance.