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SUCCINIMIDE COMPOUND, PROCESS FOR PRODUCING THE SAME, LUBRICATING OIL ADDITIVE, AND LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE
SUCCINIMIDE COMPOUND, PROCESS FOR PRODUCING THE SAME, LUBRICATING OIL ADDITIVE, AND LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE
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机译:超甜化合物,生产相同的过程,润滑油添加剂的润滑,以及用于内燃机的润滑油成分的润滑
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摘要
Provided are novel succinimide compounds obtained by reacting a polyamine having a carbon/nitrogen weight ratio of from 0.85 to 1.25 with a succinic acid compound in a molar ratio to the polyamine of up to 1.40; a process for producing them; a lubricating oil additive containing the compound; and a lubricating oil composition for internal combustion engines which comprises a lube base oil, (a) at least one compound selected from the group consisting of overbased sulfonates, phenates and salicylates with alkaline earth metals, and (b) the succinimide compound, and which has a total base number of from 30 to 150 mg-KOH/g. The composition is for use in internal combustion engines that may discharge a large amount of sulfur oxides (SOx), having the advantage of good corrosion resistance against SOx to be discharged in large quantities.
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