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| Number | Title | Issue Date |
| 7615521 | Mixed dispersants for lubricants A dispersant composition comprising the product of an amine, an alcohol, or an amino alcohol, with a hydrocarbyl-substituted succinic anhydride component exhibits improved viscosity stability and reduced chlorine content, when the hydrocarbyl-substituted succinic an... | 11/10/2009 |
| 7348298 | Enhancing thermal conductivity of fluids with graphite nanoparticles and carbon nanotube A fluid media such as oil or water, and a selected effective amount of carbon nanomaterials necessary to enhance the thermal conductivity of the fluid. One of the preferred carbon nanomaterials is a high thermal conductivity graphite, exceeding that of the neat flui... | 03/25/2008 |
| 7335625 | Organoammonium tungstate and molybate compounds, and process for preparing such compounds Novel organoammonium compounds are provided, which are useful as additives for improving the antiwear and friction-reducing properties of lubricating compositions. The compound is formed by reacting a metal acid hydrate with one or more alkyl amines. Particular exam... | 02/26/2008 |
| 7300910 | Lubricating oil composition Lubricating oil compositions providing superior soot dispersing characteristics, which contain a combination of a high molecular weight dispersant and a soot dispersant comprising a linked aromatic oligomer. ... | 11/27/2007 |
| 7291581 | Borate ester lubricant additives Disclosed are borate and boronate compounds of the formulae where R1, R2 and R3 are independently hydrogen, straight or branched chain alkyl of 1 to 24 carbon atoms, strai... | 11/06/2007 |
| 7256161 | Process for making group II metal carbonated, overbased Mannich condensation products of alkylphenols This invention is directed to a novel process for making Group II metal carbonated, overbased Mannich condensation products of alkylphenols, which process uses ethylene carbonate as both a source of carbon dioxide and ethylene glycol. In particular, under the reacti... | 08/14/2007 |
| 7214649 | Hydrocarbyl dispersants including pendant polar functional groups A dispersant composition for use as a lubricant additive. The dispersant composition includes a reaction product of an acrylamide and a compound having at least one primary or secondary amine group and being selected from the group consisting of hydrocarbyl-substitu... | 05/08/2007 |
| 6828286 | Lubricant compositions Lubricant compositions comprises a lubricant base oil and one or more compounds resulting the modification of a succinimide represented by formula (1) or (2) wherein R1 and R2 may be the same or d... | 12/07/2004 |
| 6534451 | Power transmission fluids with improved extreme pressure lubrication characteristics and oxidation resistance Power transmission fluids exhibiting improved antiwear properties containing a novel antiwear additive formed by reacting elemental sulfur and a dialkyl phosphite in the presence of an acylated amine compound. Also present in the fluid are dispersant, fri... | 03/18/2003 |
| 6482778 | Zinc and phosphorus containing transmission fluids having enhanced performance capabilities Transmission fluid compositions comprising a zinc detergent and at least one phosphorus-containing additive have enhanced performance capabilities. The use of the zinc detergent and the phosphorus-containing additive provide transmission fluids that exhib... | 11/19/2002 |
| 5972851 | Automatic transmission fluids having enhanced performance capabilities Automatic transmission fluids are described which contain a dispersant having a nitrogen to phosphorus mass ratio between about 3:1 and about 10:1, and at least one friction modifier. The use of dispersants having a nitrogen to phosphorus mass ratio betwe... | 10/26/1999 |
| 5817605 | Automatic transmission and wet brake fluids and additive package therefor Oil-based functional fluid compositions formulated for use as automatic transmission fluid, fluid for a wet brake system, or a friction-depending lubricant are improved by including in the composition a minor amount of at least one alcohol or polyol havin... | 10/06/1998 |
| 5811377 | Low molecular weight basic nitrogen-containing reaction products as enhanced phosphorus/boron carriers in lubrication oils An oil-soluble reaction product of phosphorus-, low molecular weight basic nitrogen-, and optional boron-containing compounds is provided. This reaction product can solubilize significantly more phosphorus and boron per weight of compound than other known... | 09/22/1998 |
| 5652201 | Lubricating oil compositions and concentrates and the use thereof Oleaginous compositions and additive concentrates therefor having enhanced performance characteristics comprise a) at least one oil-soluble overbased alkali or alkaline earth metal-containing detergent having a TBN of at least 200; and b) one or more oil-... | 07/29/1997 |
| 5395538 | Alkylated thiophene lubricants Alkylated thiophene compounds are high temperature stable lubricant fluids having excellent thermal stability, antiwear and load-carrying properties and excellent additive solubility.... | 03/07/1995 |
| 5389273 | Modified succinimide or succinamide dispersants and their production Preconditioned automatic transmission fluids are made by using a preblend formed by heating an alkenyl succinimide or succinamide dispersant with a phosphorus ester and water to partially hydrolyze the ester and then mixing the preblend and other additive... | 02/14/1995 |
| 5360562 | Ashless or low-ash synthetic base compositions and additives therefor An ashless or low-ash oleaginous liquid composition comprising a major amount of hydrogenated poly--olefin oligomer fluid having a viscosity in the range of about 2 to about 10 cSt at 100° C., and minor amounts of at least the following: A) hydrog... | 11/01/1994 |
| 5279751 | Reaction products of sulfur-containing diacyl halides with phosphorodithioic acid and phenols or thiazoles as multifunctional lubricant additives Reaction products of sulfur-containing diacyl halides with phosphorodithioic acids and phenols or thiazoles are effective EP/antiwear and antioxidant additives for lubricants.... | 01/18/1994 |
| 5256319 | New thiophosphoretted compounds, their preparation and their use as additives for lubricants A composition of a thiophosphoretted additive obtained by reacting a sodium or a calcium sulfonate surbasified by sodium or calcium carbonate, showing 0.9 to 10 basic equivalents per kilogram, with a phosphorus sulfide used in such proportion that he rati... | 10/26/1993 |
| 5241003 | Ashless dispersants formed from substituted acylating agents and their production and use Succinimides, succinic esters, and succinic ester-amides are formed by (A) reacting (i) at least one substantially aliphatic polymer of at least one lower olefin, and (ii) an acidic reactant or a mixture of two or more acidic reactants represented by the ... | 08/31/1993 |
| 5198133 | Modified succinimide or sucinamide dispersants and their production Preconditioned automatic transmission fluids are made by using a preblend formed by heating an alkenyl succinimide or succinamide dispersant with a phosphorus ester and water to partially hydrolyze the ester and then mixing the preblend and other additive... | 03/30/1993 |
| 5164103 | Preconditioned atf fluids and their preparation Preconditioned automatic transmission fluids are made by using a preblend formed by heating an alkenyl succinimide or succinamide dispersant with a phosphorus ester and water to partially hydrolyze the ester and then mixing the preblend and other additive... | 11/17/1992 |
| 4855074 | Homogeneous additive concentrates and their formation A homogeneous concentrate suitable for use as an additive for lubricating oils is formed from a long chain succinimide and a benzotriazole by heating a mixture of these materials in the presence of water or alkoxylated amines or dihydrocarbylphosphites or... | 08/08/1989 |
| 4747971 | Hydrocarbon soluble nitrogen containing dispersant - fluorophosphoric acid adducts Amine-containing dispersants, such as succinimides, Mannich Bases and Viscosity-index improvers are reacted with fluorophosphoric acid. The reaction of the dispersant with the fluorophosphoric acid passivates the dispersant to fluorocarbon compositions us... | 05/31/1988 |
| 4717491 | Reaction products of dialkyl and trialkyl phosphites with elemental sulfur, organic compositions containing same, and their use in lubricant compositions Dialkyl and trialkyl phosphites are reacted with sulfur. The resulting product is further reacted with an amine, olefin, or alkylene oxide to form a lube oil product. A better additive results when addition phosphorus trioxide is then reacted with the res... | 01/05/1988 |
| 4615826 | Hydrocarbon soluble nitrogen containing dispersant-fluorophosphoric acid adducts Amine-containing dispersants, such as succinimides, Mannich Bases and Viscosity-index improvers are reacted with fluorophosphoric acid. The reaction of the dispersant with the fluorophosphoric acid passivates the dispersant to fluorocarbon compositions us... | 10/07/1986 |
| 4487704 | Lubricating oil compositions containing an overbased calcium sulfonate and a zinc cyclic hydrocarbyl dithiophosphate-succinimide complex The anti-wear properties of lubricating oil compositions containing overbased calcium sulfonate are improved when a complex of a zinc salt of a cyclic hydrocarbyl dithiophosphoric acid of 2,4-pentanediol and a succinimide is added to the oil. Oil composit... | 12/11/1984 |
| 4483775 | Lubricating oil compositions containing overbased calcium sulfonates The anti-wear properties of lubricating oil compositions containing overbased calcium sulfonate are improved when a metal diisopropyl dithiophosphate-succinimide complex is added to the oil. Oil compositions containing this combination are useful as crank... | 11/20/1984 |
| 4443360 | Oil-soluble zinc cyclic hydrocarbyl dithiophosphate-succinimide complex and lubricating oil compositions containing same Oil-insoluble zinc salts of cyclic dithiophosphates are rendered oil soluble when combined to form a complex with alkenyl or alkyl mono- or bis-succinimides. Oil compositions containing this combination are useful as crankcase lubricants.... | 04/17/1984 |
| 4397749 | Oil-soluble metal thiolate-succinimide complexes Oil-insoluble metal thiolates prepared by reacting an acyloin, phosphorus pentasulfide and a heavy metal salt are rendered oil soluble when combined with alkenyl or alkyl mono- or bis-succinimides. The complexes are effective as anti-oxidants and anti-wea... | 08/09/1983 |
| 4306984 | Oil soluble metal (lower) dialkyl dithiophosphate succinimide complex and lubricating oil compositions containing same Oil insoluble metal salts of lower dialkyl dithiophosphates are rendered oil soluble when combined with alkenyl or alkyl mono- or bis-succinimides. Oil compositions containing this combination are useful as crankcase lubricants.... | 12/22/1981 |
| 4144181 | Polymeric additives for fuels and lubricants Oil-soluble, derivatized ethylene copolymers derived from about 2 to 98 wt. % ethylene, and one or more C3 to C28 alpha-olefins, e.g. propylene, which are grafted, preferably solution-grafted under an inert atmosphere and at elevated... | 03/13/1979 |
