摘要:
The present invention relates to the use of quaternized alkylamine nitrogen compounds as a fuel additive and lubricant additive, such as, more particularly, as a detergent additive; for reduction or prevention of deposits in the injection systems of direct injection diesel engines, especially in common rail injection systems, for reduction of the fuel consumption of direct injection diesel engines, especially of diesel engines with common rail injection systems, and for minimization of power loss in direct injection diesel engines, especially in diesel engines with common rail injection systems; and as an additive for gasoline fuels, especially for operation of DISI engines.
摘要:
Compositions comprise first antioxidants and first additives, such as, a surface additives, performance enhancing additives and lubricant protective additives and optionally second additives and/or second antioxidants. The compositions are useful to improve lubricants, lubricant oils and other lubricant materials. The compositions and methods generally provide longer shelf lives, increased oxidative resistance, improved quality and/or enhanced performance to lubricants or lubricant oils.
摘要:
Provided are lubricating compositions comprising in admixture at least 40 wt % of a base stock selected from the group consisting of Group I, Group II, Group III, Group IV and Group V base stocks, or any combination thereof, and one or more polyetheramines. Also provided are methods of improving the friction and wear properties of a base stock selected from the group consisting of Group I, Group II, Group III, Group IV and Group V base stocks, or any combination thereof, comprising blending the base stock with one or more polyetheramines, to form a lubricating composition.
摘要:
The resistance to deposit formation in formulated lubricating oils is enhanced by the addition to the lubricating oil of an additive amount of ionic liquids.
摘要:
A quaternary ammonium salt detergent made from the reaction product of the reaction of: (a) a hydrocarbyl substituted acylating agent and a compound having an oxygen or nitrogen atom capable of condensing with said acylating agent and further having a tertiary amino group; and (b) a quaternizing agent suitable for converting the tertiary amino group to a quaternary nitrogen and the use of such quaternary ammonium salt detergents in a lubricating composition.
摘要:
Disclosed is a method for improving copper corrosion performance of a lubricating oil composition containing (a) a major amount of a base oil of lubricating viscosity; and (b) one or more dispersants containing one or more basic nitrogen atoms. The method involves adding to the lubricating oil composition an effective amount of one or more copper corrosion performance improving agents containing one or more oil-soluble titanium compounds.
摘要:
The lubricating oil composition of the invention includes a base oil composed of mineral oil and/or synthetic oil, an amine antioxidant (A-1) in an amount of 800 ppm or more as reduced to the total amount of nitrogen, and a compound containing phosphorus and/or sulfur (A-2). The invention provides a compressor oil which realizes thermal/oxidation stability, resistance to sludge formation, lubricity, long service life, and water separation at high levels.
摘要:
The present invention provides water-resistant grease which improves the resistance to peeling which occurs from the surface of a bearing composed of carbon steel for machine structural use or the like even in a strict lubricating condition in which water may penetrate into the water-resistant grease during the operation of the bearing, and a rolling bearing and a hub bearing which use the water-resistant grease and have a long life. The water-resistant grease is composed of non-water-based base oil, a thickener, and a water dispersant used as an additive. The saturated amount of water dispersible in the water-resistant grease is 30 to 60 wt %. The water dispersant capable of dispersing the water in the water-resistant grease is a surface active agent. The non-water-based base oil is mineral oil. The thickener is a urea-based compound. The present invention also provides a rolling bearing and a hub bearing in which the water-resistant grease is enclosed.
摘要:
Certain NH sterically hindered amine compounds of the formula where R is a straight or branched alkyl group of from 7 to 17 carbon atoms and where n is from 6 to 18 are suitable for use as stabilizers in lubricant compositions. The sterically hindered amines are non-aggressive towards fluoroelastomer O-rings or seals.
摘要:
Antioxidant additives for lubricating oils are prepared by reacting an acidic molybdenum compound or salt thereof and a basic nitrogen compound where the temperature of the process does not exceed 120° C., resulting in a product color that is light in intensity.