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| Number | Title | Issue Date |
| 7241723 | Bearing cleaning composition and method of use A composition for cleaning bearings in rotating equipment and industrial machinery that contains powdered limestone having a high calcium content dispersed in a calcium sulfonate grease, together with a colorant that readily enables a user to differentiate between c... | 07/10/2007 |
| 7238651 | Process for preparing an overbased detergent The invention relates to a process for preparing an overbased metal detergent in an oil medium comprising the steps of: (1) providing a metal salt selected from the group consisting of a hydrocarbyl-substituted organic acid; a hydrocarbyl-substituted phenol, a phena... | 07/03/2007 |
| 7084092 | Shale hydration inhibition agent and method of use A water-base fluid for use in drilling, cementing, workover, fracturing and abandonment of subterranean wells through a formation containing a shale which swells in the presence of water. In one illustrative embodiment, the drilling fluid includes, an aqueous based ... | 08/01/2006 |
| 5693597 | Colloidal alkaline or alkaline-earth carbonates containing a compound of calcium, phosphorus and sulphur in micellar form Colloidal products are described which comprise micelles of alkaline metals or alkaline-earth metals, held in the colloidal state by at least one alkaline metal or alkaline-earth metal alkyl- or alkylarylsulphonate. The products further comprise micelles ... | 12/02/1997 |
| 5370803 | Efficient method of producing lubricant detergent additives A method of preparing a lubricant detergent additive at a significantly enhanced filtration rate comprising the steps of: (a) mixing a neutral calcium sulfonate with sulfur, diluent oil, (C5 -C40) alkylphenol, ethylene glycol, and calcium... | 12/06/1994 |
| 5223163 | Metal phenates Overbased metal phenates, preferably metal phenate sulfides, having a higher alkalinity, reflected by the total base number (TBN), and having good viscosity characteristics, are overbased in the presence of a carboxylic acid, preferably oleic acid and a d... | 06/29/1993 |
| 5169545 | Metal phenate sulfides Overbased metal phenate sulfides, having a higher alkalinity, reflected by the total base number (TBN), and having good viscosity characteristics, are synthesized with a dispersant comprising a dialkyl metal sulfosuccinate or combination of the dialkyl me... | 12/08/1992 |
| 5032299 | Magnesium overbasing process A process is disclosed for overbasing a substrate comprising mixing a composition comprising said substrate, water, a phenol containing up to three aliphatic carbon atoms, a source of magnesium and a carbonating agent, under reaction conditions to form a ... | 07/16/1991 |
| 4865754 | Lubricant overbased phenate detergent with improved water tolerance An improved overbased sulfurized alkaline earth metal phenate detergent lubricating oil additive and the process for its preparation are disclosed. The overbased sulfurized alkaline earth metal phenate detergent lubricating oil additive comprises the reac... | 09/12/1989 |
| 4775490 | Magnesium overbasing process The invention describes a process for overbasing a substrate comprising mixing the substrate, water, a phenol, a source of magnesium and a carbonating agent, wherein the water is retained throughout the overbasing reaction and provided further that the we... | 10/04/1988 |
| 4744921 | Methods for preparing, group II metal overbased sulfurized alkylphenols The present invention is directed toward a method for preparing Group II metal overbased sulfurized alkylphenols. In particular, the present invention employs a sulfurization catalyst in the preparation of Group II metal overbased sulfurized alkylphenols.... | 05/17/1988 |
| 4698170 | Process for the preparation of very highly alkaline, calcium-based detergent-dispersant additives and products produced therefrom Disclosed is a process for preparing very highly alkaline, calcium-based, detergent-dispersant additives for lubricating oils and products produced by such a process. The process includes the steps of reacting an alkylbenzenesulfonic acid, an alkylphenol,... | 10/06/1987 |
| 4614602 | Lubricant overbased detergent-dispersants with improved solubility A lubricant composition is disclosed comprising a major amount of a lubricating oil composition and a minor amount of an overbased detergent-dispersant lubricant additive comprising a reaction product of an alkaline earth metal phenate and an ammonium alk... | 09/30/1986 |
| 4470916 | High alkalinity metallic detergent-dispersant additives for lubricating oils and method of making same High alkalinity metallic lubricating oil additives and a method of making them are disclosed. A magnesium alkylbenzenesulfonate and a sulfurized calcium alkylphenate are carbonated in the presence of an oil, magnesium oxide, a glycol, and an amine. The gl... | 09/11/1984 |
| 4465603 | Process for producing superbasic detergents for lubricant compositions The process for the production of superbasic detergents from sulphonates and/or sulphophenates and an oxide or an hydroxide of an alkali metal or an alkaline earth metal is carried out in the presence of an ester of the carbonic acid, preferably in the pr... | 08/14/1984 |
| 4464289 | Super-alkalinized detergent-dispersant additives for lubricating oils and method of making same Super-alkalinized lubricating oil additives and a method of making them are disclosed. A magnesium alkylbenzenesulfonate and a sulfurized alkylphenol are carbonated in the presence of an oil, magnesium oxide, a glycol, and an amine. The resulting medium i... | 08/07/1984 |
| 4435301 | Preparation of overbased magnesium phenates Overbased magnesium phenate compositions are prepared by reacting magnesium oxide in a diluent with: (1) a hydrocarbyl-substituted phenol and/or a sulfurized hydrocarbyl-substituted phenol, (2) an ammonium sulfonate, (3) a monohydric alcohol of from 1 to ... | 03/06/1984 |
| 4412927 | Process for the preparation of superalkalinized metallic detergent-dispersants for lubricating oils and products obtained therefrom A process is provided for preparing detergent-dispersant compositions of high alkalinity by: 1. Carbonation, at a temperature of between about 100° C. and 250° C., with carbon dioxide of a reaction medium comprising a sulfurized alkylphenate of an alkal... | 11/01/1983 |
| 4302342 | Process for the preparation of detergent dispersants of high alkalinity for lubricating oils and the product obtained therefrom A process is provided for preparing detergent-dispersant compositions of a TBN of at least about 200, containing at least about 2 percent magnesium, by: (1) sulfurization by sulfur of an alkylphenol in the presence of a magnesium and/or calcium alkylbenze... | 11/24/1981 |
| 4295981 | Production of overbased magnesium detergent additives Highly basic magnesium phenates are prepared by a process in which a magnesium alkoxy-alkoxide is hydrolyzed in the presence of a sulphurized phenol and the mixture then carbonated in which the presence of free alkoxyalcohol in the reaction mixture is min... | 10/20/1981 |
| 4293431 | Process of preparing metallic detergent-dispersant additives of high alkalinity in particular for lubricating oils, and product obtained thereby A process of preparing metallic detergent-dispersant compositions is provided by: 1. Reacting sulfur with an alkylphenol, bearing one or more C6 -C60 alkyl substituents, in the presence of a dilution oil, an alkaline-earth metal alky... | 10/06/1981 |
| 4251379 | Detergent-dispersants of high alkalinity for lubricating oils and process for their preparation New detergent-dispersants of high alkalinity useful as additives for lubricating oils and a novel process for their preparation are provided. The novel detergent-dispersant additives are prepared by: (1) sulfurizing an alkylphenol in the presence of an alkylbenzene... | 02/17/1981 |
| 4104180 | Production of overbased metal phenates Producing overbased carbonates by hydrolyzing a metal alkoxyalkoxide in the presence of a phenolic or sulphonic surfactant and carbonating the product of hydrolysis.... | 08/01/1978 |
| 4057504 | Method of preparing overbased lubricating oil additives A method of preparing an overbased lubricating oil additive comprising introducing carbon dioxide into a mixture containing (1) an oil-soluble organic acid or a metal salt thereof, which acid or salt includes a hydrocarbon group having 8 to 150 carbon ato... | 11/08/1977 |
| 4049560 | Detergent additives Producing an overbased magnesium phenate detergent by carbonating a mixture of a sulphur containing phenol, a smaller amount of a sulphonic acid, sulphonate or sulphate, an alkanol, magnesium oxide or hydroxide and a carboxylic acid, anhydride or salt.... | 09/20/1977 |
