公开(公告)号：EP1462510A1

公开(公告)日：2004-09-29

申请号：EP04251461.2

申请日：2004-03-13

申请人： ETHYL CORPORATION

发明人： Balasubramaniam, Vasudevan ,  Degonia, David John

IPC分类号： C10M171/02 ,  C10M161/00 ,  C10M169/04

CPC分类号： C10M171/02 ,  C10M161/00 ,  C10M169/044 ,  C10M169/048 ,  C10M2203/1025 ,  C10M2205/02 ,  C10M2205/026 ,  C10M2207/10 ,  C10M2209/084 ,  C10M2215/02 ,  C10M2215/08 ,  C10M2215/102 ,  C10M2215/14 ,  C10M2215/24 ,  C10M2215/26 ,  C10M2215/28 ,  C10M2219/064 ,  C10M2223/047 ,  C10N2220/02 ,  C10N2220/022 ,  C10N2230/02 ,  C10N2230/06 ,  C10N2230/54 ,  C10N2240/04

摘要： The present invention provides a hypoid axle bimodal gear lubricant formulation comprising: (a) a base oil of lubricating viscosity, (b) at least one viscosity index improver, (c) a friction modifier, and (d) an antiwear additive; wherein said bimodal gear lubricant formulation produces a gel permeation chromatogram having at least a first peak representative of the base oil and at least a second peak representative of the viscosity index improver, and wherein said base oil has a viscosity at 100°C in the range of from about 2 centistokes to about 8 centistokes, and wherein said undilute viscosity index improver has a viscosity at 100°C in the range of from about 600 centistokes to about 45,000 centistokes.

摘要翻译： 本发明提供一种双曲线双轴齿轮润滑剂配方，其包括：（a）润滑粘度的基础油，（b）至少一种粘度指数改进剂，（c）摩擦改进剂和（d）抗磨添加剂; 其中所述双峰齿轮润滑剂配方产生具有代表基础油的至少第一峰和至少代表粘度指数改进剂的第二峰的凝胶渗透色谱图，并且其中所述基础油在100℃的粘度范围内 为约2厘沲至约8厘沲，并且其中所述未稀释粘度指数改进剂在100℃下的粘度范围为约600厘沲至约45,000厘沲。