| abstract |
(57) Abstract: (i) a reaction product of a polyalkenyl derivative of an ethylenically unsaturated carboxylic acid reagent and (ii) a compound of the following formula (I), a method for preparing the reaction product, and such a reaction product Use of reaction products as lubricating oil compositions, fuel compositions and additive concentrates, and dispersant additives. Embedded image Wherein R is a linear alkylene group having at least 2 carbon atoms, a branched alkylene group having at least 3 carbon atoms, a cycloalkylene group having at least 5 carbon atoms (one of the carbon atoms The above may be substituted with one or more heteroatoms), or an aromatic group or a group of the following formula (II): (Where a is 1 to 6 and b is 0 to 6), the groups R may be the same or different, and the values of a and b may be the same. Good and may be different) |