Polyolefin-substituted succinimides.

摘要

The invention provides a process for the preparation of optionally halogenated polyolefin-substituted succinimides, the process comprising: (i) allowing the product formable by reaction of an optionally halogenated polyolefin with maleic anhydride to react with further maleic anhydride in the presence of a free-radical initiator; and (ii) reacting the product of step (i) with an amine; the succinimides per se; and lubricating oil compositions and additive concentrates containing the succinimides.