公开(公告)号：US4968321A

公开(公告)日：1990-11-06

申请号：US307018

申请日：1989-02-06

申请人： Rodney L. Sung ,  Daniel T. Daly ,  Thomas E. Hayden ,  Rolf Sieverding

发明人： Rodney L. Sung ,  Daniel T. Daly ,  Thomas E. Hayden ,  Rolf Sieverding

IPC分类号： C08G65/332 ,  C08L71/02 ,  C10L1/14 ,  C10L1/16 ,  C10L1/18 ,  C10L1/22 ,  C10L1/2387

CPC分类号： C10L1/146 ,  C08G65/332 ,  C08L71/02 ,  C10L1/143 ,  C10L1/2387 ,  C10L1/1616 ,  C10L1/1633 ,  C10L1/1985 ,  C10L1/2383

摘要： A motor fuel composition which inhibits engine ORI and intake valve deposit formation and sticking comprises a mixture of hydrocarbons boiling in the range of 90.degree. F.-450.degree. F. and (I) the reaction product of a hydrocarbyl-substituted dibasic acid anhydride and a polyoxyalkylene diamine; (II) a polymeric component which is a polyolefin polymer, copolymer, or the corresponding aminated or hydrogenated polymer or copolymer, or mixtures thereof, of a C.sub.2 -C.sub.10 hydrocarbon; (III) a polyalkylene glycol having a molecular weight in the range of 500-2000; and (IV) a lubricating oil composition.