发明授权
US06468946B2 Mixed phosphorus compounds and lubricants containing the same 有权
混合磷化合物和含有相同的润滑剂

  • 专利标题: Mixed phosphorus compounds and lubricants containing the same
  • 专利标题(中): 混合磷化合物和含有相同的润滑剂
  • 申请号: US09347962
    申请日: 1999-07-06
  • 公开(公告)号: US06468946B2
    公开(公告)日: 2002-10-22
  • 发明人: James N. Vinci
  • 申请人: James N. Vinci
  • 主分类号: C10M13708
  • IPC分类号: C10M13708
Mixed phosphorus compounds and lubricants containing the same
摘要:
This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity and (A) a di or trihydrocarbyl phosphite, (B) at least one reaction product of a di or trihydrocarbyl phosphite and sulfur or a source of sulfur; at least one di or trihydrocarbyl monothiophosphate; or salt thereof, and (C) a salt of a hydrocarbyl phosphoric acid ester. In one embodiment, the lubricant composition contains less than 0.1% phosphorus or less than about 0.75% borated dispersant. This combination of phosphorus compounds provides antiwear and thermal stability to lubricants, even at low phosphorus levels. The lubricating compositions containing the combination of the phosphorus compounds has low corrosivity to copper and low odor as well.
信息查询
0/0