Lube oil compositions containing fullerene-grafted polymers

A lube oil composition comprising a base oil and an effective dispersant, antioxidant, and viscosity improving amount of hydrocarbon soluble reaction product of

• a fullerene and
• the reaction product of a long chain hydrocarbyl substituted mono- or dicarboxylic acid or its anhydride, said long chain hydrocarbyl having a number average molecular weight of from about 500 to about 10,000 MW, and a polymer containing at least 2 reactive amino groups selected from the group consisting of primary amino groups, secondary amino groups, and mixtures thereof, wherein the reaction product contains at least one reactive amino group selected from the group consisting of primary and secondary amino groups.

A polymeric composition, comprising a base oil and an effective dispersant, antioxidant, and viscosity improving amount of hydrocarbon soluble reaction product of

• a fullerene and
• the reaction product of at least one alkyl substituted hydroxyaromatic compound formed by the alkylation of a hydroxy aromatic compound with an olefin polymer of a C.sub.2 to C.sub.10 monoolefin having a number average molecular weight of from about 500 to about 10,000, an aldehyde reactant and at least one amine having at least two reactive amino groups selected from the group consisting of primary amines, secondary amines and mixtures thereof.

A lube oil composition, which comprises a base oil and an effective dispersant, antioxidant, and viscosity improving amount of a hydrocarbon soluble reaction product of

• a fullerene and
• an amine-containing polymer having at least one reactive amine group selected from the group consisting of primary amines, secondary amines and mixtures thereof, said polymer formed by the process of polymerizing ethylene with an alpha-olefin and an organometallic compound-masked nitrogen-containing monomer, followed by deashing to remove the organometallic compound.

A lube oil composition comprising a base oil and a hydrocarbon soluble reaction product of

• a fullerene and
• an amine-containing polymer formed by reacting an amine compound with a halogenated polymer selected from the group consisting of bromopolyisobutylene and chloropolyisobutylene.

A lubricating oil composition comprising a base oil and from about 0.1 wt. % to about 20 wt. % of an oil soluble fullerene grafted amine-containing polymer.

A method of using fullerene grafted amine-containing polymers as a lube additive comprising adding an effective amount of an oil soluble fullerene grafted amine-containing polymer to a base oil.