Abstract: This disclosure relates to a lubricant powder composition that is made from a combination of wax, grease thickener, and additives. The lubricant powder composition exhibits low frictional, and improved mechanical stability in high temperature environments. This disclosure further relates to the use of a lubricant powder composition in a mechanical component.

Abstract: This disclosure relates to a lubricant powder composition that is made from a combination of wax, grease thickener, and additives. The lubricant powder composition exhibits low frictional, and improved mechanical stability in high temperature environments. This disclosure further relates to the use of a lubricant powder composition in a mechanical component.

Abstract: This disclosure relates to grease compositions having at least one base oil, and at least one polyurea thickener. The at least one polyurea thickener is prepared by reacting an isocyanate-terminated prepolymer with at least one amine under reaction conditions sufficient to prepare the at least one polyurea thickener. The isocyanate-terminated prepolymer is prepared by reacting a polyisocyanate with a polyol, at an NCO/OH equivalent ratio of 1.05:1 to 10:1, under reaction conditions sufficient to prepare said isocyanate-terminated prepolymer. When the grease compositions are used under high temperature conditions, structural stability and resistance to breaking down in accordance with DIN 51821 (FAG FE9) is improved. This disclosure also relates to a method of preparing the grease compositions. This disclosure further relates to a method for improving high temperature performance of a grease composition in a mechanical component lubricated with the grease composition.

Abstract: This disclosure relates to grease compositions having at least one base oil, and at least one thickener. The at least one thickener includes a combination of calcium sulfonate and a polyurea. The grease compositions have a service life or time at which 50 percent of the bearings fail (L50) of at least 100 hours at a temperature of 160° C., in accordance with DIN 51821 (FAG FE9). The calcium sulfonate includes from 60 weight percent to 95 weight percent, based on the total weight of the thickener, and the polyurea comprises from 5 weight percent to 40 weight percent, based on the total weight of the thickener. This disclosure also relates to a method of preparing the grease compositions. This disclosure further relates to a method for improving high temperature performance of a grease composition in a mechanical component lubricated with the grease composition.

Abstract: The invention relates to grease compositions containing high viscosity index polyalphaolefins (HVI-PAO) and polyurea thickeners. The use of HVI-PAOs and polyurea thickeners in a bi-modal base stock grease application provides favorable frictional properties and improved overall performance.

Abstract: Polyurea compounds are prepared by reacting amines and polyisoyanates in the presence of a liquid diluent in a high-pressure impingement mixing device under conditions sufficient to produce polyurea compounds having the consistency of a powder and in which diluent is dispersed.

Abstract: Polyurea compounds are prepared by reacting amines and polyisoyanates in the presence of a liquid diluent in a high-pressure impingement mixing device under conditions sufficient to produce polyurea compounds having the consistency of a powder and in which diluent is dispersed.

Abstract: Polyurea compounds are prepared by reacting amines and polyisoyanates in the presence of a liquid diluent in a high-pressure impingement mixing device under conditions sufficient to produce polyurea compounds having the consistency of a powder and in which diluent is dispersed.

Abstract: A system and device for preparing polyurea compounds. The system comprising a chamber for reacting amines and isocyanates in the presence of a liquid diluent in a high-pressure impingement mixing device under conditions sufficient to produce a polyurea compound having the consistency of a powder and in which diluent is dispersed.

Abstract: The invention relates to grease compositions containing high viscosity index polyalphaolefins (HVI-PAO) and polyurea thickeners. The use of HVI-PAOs and polyurea thickeners in a bi-modal base stock grease application provides favorable frictional properties and improved overall performance.