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Novel succinimide compound and method for producing it, lubricating oil additive comprising the compound, and lubricating oil composition comprising the compound for diesel engines
Novel succinimide compound and method for producing it, lubricating oil additive comprising the compound, and lubricating oil composition comprising the compound for diesel engines
Disclosed are novel succinimide compounds effective in diesel engine lubricating oil for protecting engine parts from being corroded or worn by SOx. An acid compound of formula (I) or (II) is reacted with a polyamine to produce the succinimide compounds, which give an absorption peak (α-peak) at 1640 ± cm-1 and an absorption peak (β-peak) at 1700 ± 10 cm-1 in the IR spectral pattern with the ratio, α-peak intensity/β-peak intensity, of being 0.12 or more.[1] R is an alkenyl or alkyl group derived from a C2 to C15 olefinic polymer and having a number-average molecular weight of from 200 to 4000. The succinimide compound is added to base oil along with a metallic detergent-dispersant additives selected from over-based sulfonates, phenates and salicylates of alkaline earth metals to give a lubricating oil composition for diesel engines.展开▼
机译:公开了在柴油发动机润滑油中有效的新型琥珀酰亚胺化合物,其用于保护发动机零件免受SOx腐蚀或磨损。使式(I)或(II)的酸化合物与多胺反应,生成琥珀酰亚胺化合物,该化合物在1640±cm -1 Sup>处出现一个吸收峰(α-峰值),并出现一个吸收峰IR光谱图中1700±10 cm -1 Sup>处的(β-峰值),α-峰值强度/β-峰值强度之比为0.12或更大。 [1] <图像文件=“ IMGA0001.GIF” he =“ 41” imgContent =“ chem” imgFormat =“ GIF” wi =“ 142” /> Chemistry> R是烯基或烷基衍生自C2至C15的烯烃聚合物,数均分子量为200至4000。将琥珀酰亚胺化合物与金属清净剂分散剂添加剂一起添加到基础油中,这些添加剂选自碱的过碱性磺酸盐,酚盐和水杨酸盐土金属制成柴油发动机的润滑油组合物。 ListItem> UnorderedList>
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