| abstract |
A lubricant additive including a compound represented by a general formula (1): n n n n n n n n n n (In the general formula (1), R is a hydrocarbon-containing, group having a carbon number of no less than 1; X 1 is a single bond, —CONH— group, —NHCO— group, —NH— group, or a linking group having a carbon number of 0 to 1 and having no less than one heteroatom and not having a hydrogen atom bonded to the heteroatom; X 2 is a single bond, or a linking group having a carbon number of 0 to 1 and having no less than one heteroatom and not having a hydrogen atom bonded to the heteroatom; Z is —CN group, —CO 2 CH 3 group, or a group having a carbon number of 0 to 6 and having no less than one heteroatom and a hydrogen atom bonded to the heteroatom.). |