申请人:BP CHEMICALS (ADDITIVES) LIMITED
公开号:EP0450873A2
公开(公告)日:1991-10-09
A lubricating oil soluble compound suitable for use as a dispersant additive is obtainable by reacting at elevated temperature a polyepoxide with a dispersant having at least one reactive nitrogen-containing moiety.
Intermediates of the general formula IV
where Y′ is a derived from the reaction of the polyeyoxide with reactive nitrogen-containing moieties (i.e. primary or secondary amines) are novel.
The process for preparing the lubricating oil soluble compounds comprises at least 2 sequential steps.
Lubricating oil compositions comprise a major proportion of lubricating oil and a minor proportion of the lubricating oil soluble compounds.
一种适合用作分散剂添加剂的润滑油可溶性化合物可通过在高温下使聚环氧化物与具有至少一个活性含氮分子的分散剂发生反应而获得。
通式 IV 的中间体
其中 Y′是由聚环氧化物与活性含氮基团(即伯胺或仲胺)反应得到的中间体。
制备润滑油可溶性化合物的工艺至少包括 2 个连续步骤。
润滑油组合物包括主要比例的润滑油和次要比例的润滑油可溶性化合物。