Multifunctional viscosity modifiers for lubricating oil compositions with improved dispersancy and antioxidancy derived from adducts of quinone
 An oil-soluble lubricating oil and fuel additive, useful as a multifunctional viscosity modifier comprising succinimide and other amine-containing polymers reacted with a quinone or substituted quinone adducts. Suitable polymers are those containing primary or secondary amine groups such as EPSA-PAM and EPDM-amine polymers. The multifunctional viscosity modifier additive provides improved dispersancy and antioxidancy to a lubricating oil or fuel composition. 
Exxon Chemical Patents Inc.
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Abhimanyu O.
Patil