| abstract |
Novel terpolymers are disclosed which comprise the reaction product of a high molecularnweight olefin, such as polybutene or polypropylene, with an unsaturated acid reactant, such asnmaleic anhydride and a di-or polyunsaturated reactant. The terpolymers are useful as dispersantsnin lubricating oils and fuels and are also used to prepared polysuccinimides and other post-treatednadditives useful in lubricating oils and fuels. |