| abstract |
The present invention relates to at least one terminal unsaturated ethylene alpha-olefin polymer having a number average molecular weight of about 20,000 to about 500,000, substituted with a mono- or dicarboxylic acid producing moiety (preferably dicarboxylic acid or anhydride moiety) Unsaturated groups include terminal ethenylidene unsaturated groups). The mono- and dicarboxylic acid or anhydride substituted polymers of the present invention are useful as additives for oily compositions such as lubricating oils, etc., as well as nucleophilic reagents (eg, amines, alcohols, aminoalcohols and reactive metal compounds). Can be reacted with to form a product that is, for example, an oily composition additive useful as a multifunctional viscosity index improver. |