Abstract: A lubricating grease composition of the type wherein mineral or synthetic oil is thickened to the properties of a lubricating grease with a polyurea compound as thickening agent, is provided, along with a method for preparation. The polyurea compound comprises the reaction product of an isocyanate with at least three isocyanate groups in the molecule with a long-chain, straight-chain or branched aliphatic monoamine to give extended temperature and wear properties. The process for the production of this lubricating grease composition involves dissolving the long-chain aliphatic amine or mixture of such amines in the base oil, adding thereto the isocyanate with at least three isocyanate groups, heating the mixture to a temperature of at least 160.degree. to bring about gelling, and mechanically, finely comminuting the gel product.

Abstract: The present invention provides a lubricant additive obtainable by the reaction of a salt of a tertiary amine, which, as N-substituents, contains two polyethylene oxide residues with two or more ethylene oxide groups, the free hydroxyl groups of which can be etherified or acylated, and one saturated or unsaturated long-chain alkyl radical, with ammonium molybdate and/or MoO.sub.3.