| Patent application number | Description | Published |
|---|
| 20080280796 | ADDITIVES AND LUBRICANT FORMULATIONS FOR IMPROVED CATALYST PERFORMANCE - A method and compositions for lubricating surfaces with lubricating oils exhibiting increased phosphorous retention. The lubricated surface includes a lubricant composition containing a base oil of lubricating viscosity, an amount of a phosphorus-containing compound and an amount of at least one hydrocarbon soluble titanium compound that is effective to provide an aged catalyst temperature that converts at least fifty percent of exhaust gas hydrocarbons, carbon monoxide, and NO | 11-13-2008 |
| 20080287328 | LUBRICATING COMPOSITION - There is disclosed a lubricant composition comprising major amount of a base oil and a minor amount of an additive composition comprising (i) a triazole compound substituted with an aryl moiety; (ii) at least one nitrogen containing compound chosen from an alkylated phenothiazine and a compound represented by the formula (I): | 11-20-2008 |
| 20080305972 | LUBRICANT COMPOSITIONS - A lubricant composition comprising a base oil comprising less than about 3% by weight of tetracycloparaffins is disclosed. Methods of making and using the lubricant composition are also disclosed. | 12-11-2008 |
| 20080318813 | Dispersant reaction product with antioxidant capability - A novel crankcase dispersant reaction product having fused therein an antioxidant moiety whereby the dispersant reaction product can function as an antioxidant while retaining at least two structural domains, one being a polar domain for association with sludge and a hydrocarbyl domain for oil solubility, so that the dispersant can function as a chemical agent to suspend sludge and prevent agglomeration of sludge precursors and soot so the latter can be readily removed from the system, such as by filtering, instead of being deleteriously deposited on internal engine components, as well as lubricant compositions incorporating such novel dispersant and, for instance, engines lubricated with such lubricant compositions. | 12-25-2008 |
| 20090048131 | LUBRICATING COMPOSITIONS HAVING IMPROVED FRICTION PROPERTIES - The present invention provides an additive composition comprising (a) at least one ash-containing phosphorus compound prepared by a primary or secondary alcohol or mixtures thereof, and (b) a salt of at least one hydrocarbylamine and at least one hydrocarbyl acid phosphate. Further, the present invention provides a lubricating composition comprising (a) at least one ash-containing phosphorus compound prepared by a primary or secondary alcohol or mixtures thereof, and (b) a salt of at least one hydrocarbylamine and at least one hydrocarbyl acid phosphate, and methods of use thereof. | 02-19-2009 |
| 20090075849 | OIL-SOLUBLE MOLYBDENUM DERIVATIVES DERIVED FROM HYDROXYETHYL-SUBSTITUTED MANNICH BASES - The present disclosure relates to organic molybdenum complexes prepared by reacting a Mannich base with a source of molybdenum. The complexes may be useful in lubricating oil compositions as at least one of an antioxidant, a deposit control additive, and a friction modifier. The organic molybdenum complexes may show a reduced tendency to color finished oils. | 03-19-2009 |
| 20090143265 | ADDITIVES AND LUBRICANT FORMULATIONS FOR IMPROVED ANTIOXIDANT PROPERTIES - A lubricating oil composition, additive concentrate, method of lubricating moving parts, a method of improving the oxidation stability of a lubricant formulation. The lubricating oil composition includes a base oil, a hydrocarbon soluble molybdenum compound, and an antioxidant effective amount of one or more polymeric compounds devoid of ester linkages. The polymeric compound may be represented by of the formula: | 06-04-2009 |
| 20100056407 | LUBRICANT FORMULATIONS AND METHODS OF LUBRICATING A COMBUSTION SYSTEM TO ACHIEVE IMPROVED EMMISIONS CATALYST DURABILITY - Different zinc dialkyldithiophosphate (ZDDPs) exhibit different volatilities and have different effects on automotive emissions control catalysts. The ZDDPs and their respective decomposition fragments that have low volatility will have a correspondingly lower detrimental effect on combustion emissions control systems, because there are simply fewer phosphorous atoms that will pass through the combustion system to reach the emissions control system. Specifically, it has been discovered that ZDDPs that contain a significant fraction of MIBC ZDDP exhibit significantly lower volatility than other ZDDPs. | 03-04-2010 |
| 20100144563 | ADDITIVES AND LUBRICANT FORMULATIONS FOR IMPROVED ANTIWEAR PROPERTIES - Lubricated surfaces and lubricant compositions for lubricating a surface. The lubricated surface is provided by a lubricant composition including a base oil of lubricating viscosity, at least one metal salt of phosphorothioic acid, and an ashless, sulfur-free organophosphorus compound providing a metal to phosphorus weight ratio ranging from about 0.25:1 to about 1.0:1 by weight. The lubricant composition is substantially devoid of molybdenum. | 06-10-2010 |
| 20100317552 | LUBRICATING METHOD AND COMPOSITION FOR REDUCING ENGINE DEPOSITS - A lubricant composition, lubricant concentrate and method for reducing engine deposits. The composition and method include a base oil of lubricating viscosity; an organo-molybdenum compound; a deposition reducing amount of a reaction product of an alkyl-substituted dicarboxylic acid compound selected from the group consisting of alkyl-substituted dicarboxylic acids, alkyl-substituted dicarboxylic acid anhydrides, and mixtures thereof, and a basic salt of aminoguanidine, in an amount sufficient to provide a product rich in alkyl bis-3-amino-1,2,4-triazole; and optionally a phenate detergent. The lubricant composition and method provide engine deposits that are less than an amount of engine deposits in the absence of component (c) and/or optional component (d). | 12-16-2010 |
| 20110067662 | LUBRICATING OIL COMPOSITION FOR CRANKCASE APPLICATIONS - A crankcase lubricant, an additive concentrate and a method for improving water tolerance of a lubricant. The lubricant includes a) a major amount of a base oil; b) an alkali or alkaline earth metal-containing detergent; c) a phosphorus-based wear preventative; and d) a surfactant agent other than (b). The lubricant has a weight ratio of alkali or alkaline earth metal content to phosphorus content, based on a total mass of lubricant, ranging from about 1.6 to about 5.0. | 03-24-2011 |
| 20110111994 | PROCESS FOR THE PREPARATION OF POLYALKENYL SUCCINIC ANHYDRIDES - A polyalkenyl succinic anhydride is prepared with low amounts of resinous or chlorinated byproducts in a two-step process whereby a polyalkene is first reacted with an unsaturated organic acid in a thermal ene reaction, followed with exposure to a gaseous halogen in presence of an additional amount of the unsaturated organic acidic reagent. The foregoing process produces a polyisobutenyl succinic anhydride having a high ratio of succinic anhydride functional groups to polyisobutenyl backbone groups. Such a polyisobutenyl succinic anhydride is particular suitable for the production of oil-soluble hydrocarbyl succinimides that have good dispersant properties when added to lubricating oil compositions. | 05-12-2011 |
| 20110118479 | Branched Succinimide Dispersant Compounds and Methods of Making the Compounds - In accordance with the disclosure, one aspect of the present application is directed to a dispersant compound comprising the reaction product of (i) a hydrocarbyl carbonyl compound, (ii) a polycarbonyl compound having at least three carbonyl acylating functions, and (iii) a primary amine moiety of a polyamine. Methods of making and methods of using the dispersant compound are also disclosed. | 05-19-2011 |
