| abstract |
A succinimide dispersant, which is the reaction product of hydrocarbons or polymers functionalized by halogenation (e.g. chlorination), thermal "ene" r eaction or free radical grafting and derivatized with a heavy polyamine. A heavy polyam ine is a mixture of polyalkylenepolyamines comprising small amounts of lower polyamin e oligomers such as tetraethylene pentamine and pentahexamine but primarily oligomers with 7 or more nitrogens, 2 or more primary amines per molecule, a nd more extensive branching than conventional polyamine mixtures. |