| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 508460000 | Overbased or carbonated carboxylates | 22 |
| 20080274923 | OVERBASED METAL CARBOXYLATE CALCITE-CONTAINING GREASES - Grease precursors of overbased alkaline earth metal carboxylates are prepared by reacting an alkaline earth metal base and a carboxylic acid in the presence of a hydrocarbon liquid, a polyol and an alcohol. The resulting grease precursor has amorphous calcium carbonate and a calcite content of greater than 10% by weight. At least one converting agent is added to the grease precursor containing elevated levels of calcite. This mixture is heated followed by the removal of water to form calcite-containing greases having a calcite content greater than 12.5% by weight. | 11-06-2008 |
| 20090093387 | Lubricating Oil Composition - A lubricating oil composition comprising a Group II basestock and a neutral or overbased metal hydrocarbyl-substituted hydroxybenzoate detergent having a basicity index of less than 2. | 04-09-2009 |
| 20090170737 | LOW TEMPERATURE PERFORMANCE LUBRICATING OIL DETERGENTS AND METHOD OF MAKING THE SAME - A carboxylate detergent prepared by the process comprising (a) alkylating a hydroxyaromatic compound with at least one normal alpha olefin having from about 12 to about 30 carbon atoms per molecule that has been isomerized to obtain an isomerized alpha olefin having 15-98 wt % branching and a residual alpha olefin content of between from about 0.1 to about 30 wt %, thereby producing an alkylated hydroxyaromatic compound; (b) neutralizing the resulting alkylated hydroxyaromatic compound with an alkali metal base; (c) carbonating the alkali metal salt from step (b) with carbon dioxide; (d) acidifying the salt produced in step (c); and (e) overbasing the resulting alkylated hydroxyaromatic carboxylic acid. | 07-02-2009 |
| 20090264327 | OVERBASED METAL CARBOXYLATE PRECURSOR AND PROCESS FOR MAKING - Shelf stable, flowable liquids of overbased alkaline earth metal salts are prepared by reacting an alkaline earth metal base and a carboxylic acid in the presence of a hydrocarbon liquid, a polyol and an alcohol. The resulting overbased alkaline earth metal salts has an alkaline earth metal content of at least about 14.5% and a non-volatile matter content of at least about 95%. | 10-22-2009 |
| 20090291868 | Marine Engine Lubrication - A trunk piston marine engine lubricating oil composition for a medium-speed compression-ignited marine engine comprises, in a major amount, an oil of lubricating viscosity containing 50 mass % or more of a Group II basestock. and, in respective minor amounts, (A) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent having a basicity index of 4.5 or less, and (B) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent having a basicity index of greater than 4.5. The ratio of deterrent (A) to detergent (B), both expressed as mass of active ingredient, is in the range from 0.5 to 15. The trunk piston marine engine lubricating oil composition has a TBN (using ASTM D | 11-26-2009 |
| 20090291869 | Marine Engine Lubrication - A trunk piston marine engine lubricating oil composition for a medium-speed compression-ignited marine engine comprises, in a major amount, an oil of lubricating viscosity containing 50 mass % or more of a Group II basestock, and, in respective minor amounts, (A) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent having a basicity index of 5.5 or greater, and (B) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent having a basicity index of 2 or less. The ratio of the mass of metal in detergent (A) to the mass of metal in detergent (B) is 10 or less. | 11-26-2009 |
| 20090291870 | Marine Engine Lubrication - A trunk piston marine engine lubricating oil composition for a medium-speed compression-ignited marine engine comprises, in a major amount, an oil of lubricating viscosity containing 50 mass % or more of a Group II basestock, and, in respective minor amounts, (A) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent having a basicity index of 5.5 or greater, and (B) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent having a basicity index in the range of 2.1 to 5.4. The ratio of the mass of metal in detergent (A) to the mass of metal in detergent (B) is 1 or less. The trunk piston marine engine lubricating oil composition has a TBN (using ASTM D2896) of 20 to 60. | 11-26-2009 |
| 20100056408 | Additive to Improve Flow, Reduce Power Consumption and Pressure Drop in Heavy Oil Pipelines - A drag reducing additive for heavy oil, such as crude oil, includes a polymeric alkyl-substituted phenol formaldehyde resin and a solvent having at least one of an ester (e.g. ethyl acetate), an aldehyde (e.g. butyraldehyde), and an aromatic hydrocarbon (e.g. toluene, xylene, and the like), or mixtures thereof. When used together with a diluent (e.g. condensate, naphtha, or the like), the additive may reduce viscosity of the combined oil, diluent, and additive by at least 20%, increase throughput by at least 6%, reduce power consumption by at least 3%, reduce the diluent proportion by at least 3%, or some combination of these effects, as compared with an otherwise identical heavy oil without the additive. | 03-04-2010 |
| 20100062957 | Method of Reducing Asphaltene Precipitation in an Engine - A method of reducing asphaltene precipitation or ‘black paint’ in an engine is disclosed. The method includes the step of lubricating the engine with a lubricating oil composition comprising: an oil of lubricating viscosity in a major amount; and, a salicylate detergent system in a minor amount comprising one or more neutral or overbased alkaline earth metal C | 03-11-2010 |
| 20100062958 | Detergent - A detergent including one or more neutral or overbased alkaline earth metal C | 03-11-2010 |
| 20100087347 | Detergent - An overbased metal hydrocarbyl-substituted hydroxybenzoate detergent having a basicity index of less than 2 and a degree of carbonation of 80% or greater is disclosed. The overbased metal hydrocarbyl-substituted hydroxybenzoate detergent reduces asphaltene precipitation or ‘black paint’ in a marine diesel engine. | 04-08-2010 |
| 20100160197 | Highly basic calcium carboxylate compositions and method of preparation - Environmentally friendly, shelf-stable overbased calcium carboxylate compositions and their method of preparation are described. The subject compositions possess anti-oxidation and anti-wear properties superior to those associated with existing sulfonate compositions. The subject compositions are prepared by neutralizing a mixture of two different molecular weight aliphatic carboxylic acids or anhydrides in the presence of an aromatic or aliphatic hydrocarbon solvent; adding a mixture of calcium oxide and calcium hydroxide; adding methyl alcohol to promote the reaction; carbonating the mixture with carbon dioxide at temperatures between 80° F. and 120° F.; heating to 200°-250° F. and finishing carbonation; adding diluent oil to the crude product; clarifying the product in solvent; and removing the solvent. | 06-24-2010 |
| 20110021395 | Trunk piston engine lubricating oil compositions - A trunk piston engine lubricating oil composition comprising (a) a major amount of a base stock comprising at least 90% by weight saturated hydrocarbons; and (b) a minor amount of a base oil having a viscosity index of less than 70 and a cycloaliphatic hydrocarbon content of at least about 25 wt. % is disclosed. | 01-27-2011 |
| 20110077182 | System oil formulation for marine two-stroke engines - In one aspect of the present invention, a marine system oil composition is provided for lubrication of mechanical components in marine engines, for example, two-stroke, cross-head marine diesel engines and methods/additives for using the marine system oil composition in the same. In one aspect of the present invention, a marine system oil composition is provided that has salt of a carboxylate-containing detergent comprising at least one alkyl-substituted hydroxyaromatic carboxylic acid, wherein at least 50 mole % of, the alkyl groups are C | 03-31-2011 |
| 20110092404 | OVERBASED METAL CARBOXYLATE COMPLEX GREASE AND PROCESS FOR MAKING - Complex greases of overbased alkaline earth metal carboxylates are prepared by reacting an overbased alkaline earth metal salt of a fatty acid, wherein the alkaline earth metal salt has an alkaline earth metal content of at least 14.5% and a non-volatile matter content of at least 95% with conversion agents to form a grease precursor. The grease precursor is then reacted with complexing agents to form a predominantly vaterite containing non-Newtonian modified overbased metal carboxylate complex grease. | 04-21-2011 |
| 20110130315 | LOW TEMPERATURE PERFORMANCE LUBRICATING OIL DETERGENTS AND METHOD OF MAKING THE SAME - A carboxylate detergent prepared by the process comprising (a) alkylating a hydroxyaromatic compound with at least one alpha olefin oligomer, derived from C | 06-02-2011 |
| 20120135901 | LUBRICATING OIL COMPOSITION - A low sulphated ash lubricating oil composition comprises an ashless aromatic amine antioxidant and an overbased magnesium detergent which exhibits improved thermal oxidation stability. | 05-31-2012 |
| 20130157916 | Low Temperature Performance Lubricating Oil Detergents and Method of Making the Same - The present invention is directed to a method for preparing an unsulfurized, carboxylate-containing additive for lubricating oils and the product produced by said method, wherein said method comprises a) neutralization of a mixture of at least two alkyl phenols using an alkaline earth base in the presence of a promoter, to produce a mixture of alkyl phenates, wherein the mixture of at least two alkyl phenols comprises at least a first alkyl phenol wherein the alkyl group is derived from an isomerized alpha olefin and a second alkyl phenol wherein the alkyl group is derived from a branched chain olefin; (b) carboxylation of the mixture of alkyl phenates obtained in step (a) using carbon dioxide under carboxylation conditions sufficient to convert at least 20 mole % of the starting alkyl phenols to alkyl salicylate; and (c) removal of at least about 10% of the starting mixture of at least two alkyl phenols from the product produced in step (b) to produce said additive. | 06-20-2013 |
| 20130165357 | Lubricant compositions for SI-AL alloy surfaces and methods for using - A lubricant composition including: (A) greater than 50 wt % of a base stock based on the total weight of the composition selected from the group consisting of that of a Group III base oil, a Group IV base oil, and a combination thereof; and (B) one or more additional components. The one or more additional components are selected from the group consisting of: (i) one or more high or medium base carboxylate detergents; (ii) one or more low base carboxylate detergents, wherein the low base carboxylate detergent is present at a level of 0.60 wt % or less based on the total weight of the composition; (iii) one or more low base carboxylate detergents and one or more aromatics-containing base stock(s); and (iv) one or more phenolic detergents. | 06-27-2013 |
| 20140051619 | CALCIUM NEUTRAL AND OVERBASED MANNICH AND ANHYDRIDE ADDUCTS AS DETERGENTS FOR ENGINE OIL LUBRICANTS - A sulfur-free metal or ammonium salt compound, a method of making the compound, and a lubricant additive concentrate, and lubricant composition containing the compound. The compound is made by reacting a phenolic compound reacted with an aldehyde and an amine, with a compound selected from the group consisting of an acylating agent and an electrophilic compound. | 02-20-2014 |
| 20140113846 | DETERGENT FOR LUBRICANT OIL AND PRODUCTION PROCESS THEREOF - A lubricant oil detergent and a producing process thereof are disclosed. A process for producing a lubricant oil additive having a TBN from about 100 to about 400 includes reacting, at an elevated temperature, of composition (A) an alkyl salicylic acid or an alkyl salicylate ester, composition (B) an alkaline earth metal hydroxide added by one time or plural times during the reaction; composition (C) which contains at least one compound which is (i) an alcohol, or (ii) an carboxylic acid or an carboxylic anhydride; composition (D) base oil; and composition (E) carbon dioxide introduced after the composition (B) by one time, or introduced each time when the composition (B) is added if the composition (B) is added by plural times; solvent having a low boiling point is removed from the reacted mixture after the overbasing under vacuum, and the reacted mixture is filtered to obtain a clear liquid product. | 04-24-2014 |
| 20150018258 | MARINE ENGINE LUBRICATION - A detergent system that includes (i) an overbased C20-28 alkyl-substituted hydroxybenzoate Ca salt of TBN less than 250 and (ii) an overbased C14-18 alkyl-substituted hydroxybenzoate Ca salt of TBN less than 250, the wt % Ca ratio of (ii) to (i) being more than one, is used in a trunk piston marine lubricant to improve its asphaltene dispersancy when lubricating a medium-speed compression-ignited marine engine fuelled by a heavy fuel oil. | 01-15-2015 |
