Patents Represented by Attorney, Agent or Law Firm Michael E. Esposito
  • Polyurea-thickened grease composition
    Patent number: 6214778
    Abstract: A grease composition comprising a major amount of an oil of lubricating viscosity; a thickener selected from the group consisting of monoureas, diureas, triureas and polyureas, or mixtures thereof; and an oil soluble neutral or overbased zinc salt of a carboxylic acid selected from the group consisting of zinc salts of fatty acids, the zinc salts of hydrocarbyl-substituted salicylic acids, and zinc glyoxylates is disclosed.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: April 10, 2001
    Assignee: The Lubrizol Corporation
    Inventor: Patricia R. Todd