| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new succinimide compound useful for an ashless dispersant in lubricant for an internal combustion engine, a friction regulator in drive-line lubricant, etc., and a lubricant additive and a lubricant composition including the compound. <P>SOLUTION: This specific succinimide compound is obtained by reacting maleic anhydride with a polyalkene having a number-average molecular weight of ≥500 and <5,000, and further reacting tryptophan with the reaction product. <P>COPYRIGHT: (C)2012,JPO&INPIT |
