Patent ID: 8598100
Filing Date: 2013-12-03
Classification: C10M,C10N

Abstract:
1. A lubricant composition comprising: a succinimide compound (A), wherein the succinimide compound (A) is represented by formula (1) and is obtained by reacting (a) a succinic acid substituted with a linear alkenyl or alkyl group having 16-30 carbon atoms or an anhydride thereof with (b) a polyalkylenepolyamine comprising 50-100 mole % of a polyalkylenepolyamine having a ring structure at an end, based on an entire amount of the polyalkylenepolyamine (b): wherein R m represents an integer of 2 to 4, n represents an integer of 0 to 3, and A represents the ring structure in the polyalkylenepolyamine having a ring structure at an end or a mixed structure comprising the ring structure and an amino group, wherein the ring structure A in the polyalkylenepolyamine having a ring structure at an end is a ring structure represented by formula (2): wherein p and q each independently represent an integer of 2 to 4; and a succinimide compound or a boronization product thereof (B) having a number-average molecular weight of 500 to 5,000 and is substituted with an alkenyl or alkyl group, and wherein the succinimide compound or the boronization product thereof (B) is present in the lubricant composition in an amount of 10-1,000 wt. %, based on 100 wt. % of the succinimide compound (A).