Patents Represented by Attorney Ken R. Walton

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  • Fuel and lubricant additives derived from dihydroxyaromatic compounds
    Patent number: 5399277
    Abstract: The present invention relates to a novel process for the production of fuel and lubricant additives useful as dispersants and multifunctional viscosity modifiers wherein a dihydroxyaromatic compound is alkylated with an olefinic polymer and then aminated in such a manner as to oxidize the hydroxyl moieties of the dihydroxyaromatic compound to carbonyl groups.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: March 21, 1995
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Abhimanyu O. Patil