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| Number | Title | Issue Date |
| 7452851 | Lubricant compositions Lubricant compositions having improved anticorrosion performance comprising an extreme pressure compound comprising a sulfur-containing compound, an antiwear compound comprising a phosphorous-containing compound, an alkylene amine friction modifying compound, a disp... | 11/18/2008 |
| 7413682 | Antioxidants and methods of making antioxidants Antioxidants for industrial, automotive, and aviation lubricants and methods of making the same are provided. A process using alkylated diphenylamines; alkylated phenyl-α-naphthyl amines; and a metal catalyst to form oxidates is provided. The metal catalyst is a co... | 08/19/2008 |
| 6750183 | 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. ... | 06/15/2004 |
| 6686321 | Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them A grafted polyolefin containing one or more of N-vinylimidazole, 4-vinylpyridine, or other ethylenically-unsaturated nitrogen-containing or oxygen-containing graftable monomers grafted to a polyolefin copolymer is disclosed. The grafted polyolefin prefera... | 02/03/2004 |
| 6562765 | Oil compositions having improved fuel economy employing synergistic organomolybdenum components and methods for their use An engine oil having a base oil and a friction reducing amount of an oil soluble sulfurized or unsulfurized oxymolybdenum complex prepared from reacting, in the presence of a polar promoter, an acidic molybdenum compound and a basic nitrogen compound and ... | 05/13/2003 |
| 6472353 | Dispersant-viscosity improvers for lubricating oil compositions Graft copolymers useful as a dispersant-viscosity improver for lubricating oil compositions comprise a hydrocarbon polymer having graft polymerized thereon at least two nitrogen containing units, at least one of the nitrogen containing units being derived... | 10/29/2002 |
| 6426324 | Lubricant composition An antioxidant composition suitable for ester fluid lubricants is the reaction product of diphenylamine and N-aryl naphthylamine in the presence of an organic peroxide. The mole ratio of diphenylamine:N-aryl naphthylamine is about 1:1 to about 10:1. This ... | 07/30/2002 |
| 6300289 | Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them A grafted polyolefin containing one or more of N-vinylimidazole, 4-vinylpyridine, or other ethylenically-unsaturated nitrogen-containing or oxygen-containing graftable monomers grafted to a polyolefin copolymer is disclosed. The grafted polyolefin prefera... | 10/09/2001 |
| 6187721 | Lubricant for use in diesel engines Soot in a lubricated diesel engine is effectively dispersed without adversely affecting the viscosity of the lubricant by using a particular lubricant. The lubricant utilized comprises a lubricant base stock (e.g. more than 75% by weight), a dispersant (e... | 02/13/2001 |
| 6130190 | Liquid crystal and surfactant containing lubricant compositions A lubricating composition comprising a liquid crystal and a surfactant is disclosed. The inventive composition increase the lubricity of lubricant oils, reduce the wear rate or metals being lubricated, and increase the load bearing properties of lubricant... | 10/10/2000 |
| 6103676 | Dispersants and dispersant viscosity index improvers from selectively hydrogenated polymers: hydroformylation/reductive amination reaction products The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified and post treated. The dispersant substances include a copolymer of tw... | 08/15/2000 |
| 6083888 | Dispersant viscosity index improvers A lubricating oil composition comprising: (a) from 0.01 to 10 percent by weight of a dispersant viscosity index improver linear diblock copolymer or a radial or star copolymer with each arm having an overall number average molecular weight of 7500 to 250,000 ... | 07/04/2000 |
| 6030929 | Mixed carboxylic compositions and derivatives and use as lubricating oil and fuel additives A carboxylic composition comprising a mixture of hydrocarbon substituted carboxylic acylating agents, said mixture comprising (A) a polyolefin substituted carboxylic acylating agent prepared by reacting a polyolefin with an ,ଲ-unsaturated car... | 02/29/2000 |
| 5874389 | Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them A grafted polyolefin containing one or more of N-vinylimidazole, 4-vinylpyridine, or other ethylenically-unsaturated nitrogen-containing or oxygen-containing graftable monomers grafted to a polyolefin copolymer is disclosed. The grafted polyolefin prefera... | 02/23/1999 |
| 5854186 | Lubricating oil dispersants derived from heavy polyamine A Koch functionalized product, which is the reaction product of at least one hydrocarbon with carbon monoxide and a nucleophilic trapping agent is derivatized with a heavy polyamine. A heavy polyamine is a mixture of polyamines comprising small amounts of... | 12/29/1998 |
| 5843873 | Lubricants and fluids containing thiocarbamates and phosphorus Lubricants containing a compound of the structure R1 R2 N--C(X')S--(CR3 R4)a Y where X' is an oxygen or sulfur atom and Y is, e.g., an activating group; also containing a phosphorus acid or ester of the formula... | 12/01/1998 |
| 5814586 | Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them A grafted polyolefin containing at least about 13 moles of N-vinylimidazole or other ethylenically-unsaturated nitrogen-containing and/or oxygen-containing monomers per mole of a grafted polyolefin backbone is disclosed. The graft polyolefin has a weight ... | 09/29/1998 |
| 5665126 | Adducts of quinone compounds and amine-containing polymers for use in lubricating oils and in fuels Adducts useful as fuel or lubricating oil additives are disclosed. The adducts comprise the reaction product of at least one quinone compound and an amine-containing polymeric material comprising at least one member selected from the group consisting of (... | 09/09/1997 |
| 5663126 | Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them A grafted polyolefin containing N-vinylimidazole, 4-vinylpyridine, or other ethylenically-unsaturated nitrogen- or oxygen-containing graftable monomers grafted to a polyolefin copolymer. The grafted polyolefin preferably has a weight average molecular wei... | 09/02/1997 |
| 5639718 | Multifunctional viscosity modifiers for lubricating oil compositions with improved dispersancy and antioxidancy derived from adducts of quinone An oil-soluble lubricating oil and fuel additive, useful as a multifunctional viscosity modifier comprising succinimide and other amine-containing polymers reacted with a quinone or substituted quinone adducts. Suitable polymers are those containing prima... | 06/17/1997 |
| 5562851 | Sulfur-containing carbonate reaction products as lubricating oil antiwear additives This invention provides sulfur-containing carbonate reaction product additives which are useful as phosphorus-free antiwear additives in lubricating oils, particularly automatic transmission fluids.... | 10/08/1996 |
| 5534174 | Graft copolymer comprising a star-shaped polymer and an n-allyl amide Graft copolymers of a star-shaped polymer and an N-allyl amide manifest dispersant and viscosity index-improving properties.... | 07/09/1996 |
| 5474693 | Modifiers for improving clarity of multifunctional VI improver oil compositions A method of producing a clear dispersant OCP VI improver. The method comprises admixing a polar modifier to a VI improver during the preparation process or to a final product at a sufficiently high temperature to produce the desired clear dispersant VI im... | 12/12/1995 |
| 5427703 | Process for the preparation of polar lubricating base oils Process for the preparation of a polar lubricating base oil, including reacting a hydrocarbonaceous product with a polar compound, including at least one heteroatom and which hydrocarbonaceous product has been prepared by contacting hydrocarbons and/or de... | 06/27/1995 |
| 5356999 | Multifunctional viscosity index improvers based on polymers containing sulfonamides Multifunctional viscosity index improvers for lubricating oils containing an EPM or EPDM polymer onto which has been grafted an unsaturated reactive monomer and thereafter reacted with amines containing sulfonamide units.... | 10/18/1994 |
| 5354487 | Solid lubricant and composition Compositions of high lubrication and light coloration are disclosed in which a selected class of resins and rubbers is blended with a specified cured polybutadiene product. The cured product results from crosslinking more than 10% of vinyl bonds in a buta... | 10/11/1994 |
| 5182037 | Phosphorus- and/or nitrogen-containing derivatives of sulfur-containing compounds, lubricant, fuel and functional fluid compositions This invention is directed to phosphorus and/or nitrogen-containing derivative compositions of sulfur containing compounds which are suitable particularly for use as additives for lubricants, fuels and functional fluids. The lubricants, fuels, and/or func... | 01/26/1993 |
| 5075383 | Dispersant and antioxidant additive and lubricating oil composition containing same An additive composition comprising a graft and amine-derivatized copolymer prepared from ethylene and at least one C3 to C10 alpha-monoolefin and, optionally, a polyene selected from non-conjugated dienes and trienes comprising from ... | 12/24/1991 |
| 4966721 | N-N'-dihydrocarbyl substituted phenylene diamine-derived condensation products as antioxidants and lubricant compositions N-N'-dihydrocarbyl substituted phenylenediamine-derived Mannich-type condensation products are effective antioxidants for lubricants.... | 10/30/1990 |
| 4948524 | Dispersant anti-oxidant VI improver and lubricating oil composition containing same An additive composition prepared by reacting a polymer prepared from ethylene and at least one C3 -C10 alpha-monoolefin and optionally a polyene selected from non-conjugated dienes and trienes comprising from about 15 to 80 mole perc... | 08/14/1990 |
| 4941985 | Dispersant/antioxidant VII lubricant additive A dispersant/antioxidant bound VII polymethacrylate lubricant additive composition prepared by: (a) combining a polyunsaturated monomer with (C1 -C20) alkyl monomers and, optionally, a dispersant monomer in an oil solvent to provide ... | 07/17/1990 |
| 4933099 | Oil compositions containing ethylene copolymers A lubricating oil composition comprising a major amount of mineral oil of lubricating viscosity and at least a viscosity index improving amount of an oil-soluble, saturated, ethylene copolymer, preferably an oxidatively and mechanically degraded ethylene ... | 06/12/1990 |
| 4915858 | Nitrogen containing anti-oxidant compositions This invention describes compositions containing nitrogen, sulfur and optionally oxygen which are useful as antioxidants for lubricants.... | 04/10/1990 |
| 4889646 | Nitrogen containing dispersants treated with mineral acids A dispersant composition comprising the reaction product of an ashless dispersant selected from the group consisting of (i) Mannich dispersants, (ii) succinimide dispersants, (iii) succinate ester-amide dispersants, and (iv) polymeric viscosity index impr... | 12/26/1989 |
| 4824601 | Liquid antioxidant produced by alkylating diphenylamine with a molar excess of diisobutylene Process is described for the production of a liquid antioxidant composition by reaction of diphenylamine with diisobutylene comprising reacting diphenylamine with diisobutylene in a molar ratio of from 1:1.1 to 1:2.5 and in the presence of an acid activat... | 04/25/1989 |
| 4772406 | Olefinic hydrocarbon modification with sulfur imides Hydrocarbon compositions, including oligomers and polymers, for use in improving the thermo-oxidative stability and the dispersancy and viscosity index improvement (for high molecular weight) properties of fuels and lubricating oils are disclosed. These c... | 09/20/1988 |
| 4758362 | Carbamate additives for low phosphorus or phosphorus free lubricating compositions A phosphorus free or a low phosphorus containing lubricant composition is provided by formulating the composition with an additive of the formula ##STR1## wherein R1 and R2 are independently alkyl of 1 to about 7 carbons, aryl, ... | 07/19/1988 |
| 4752416 | Phosphite ester compositions, and lubricants and functional fluids containing same Lubricating and functional fluid compositions are described which comprise at least one oil of lubricating viscosity and an extreme-pressure and friction-modifying amount of (A) at least one phosphite ester characterized by the formula ##STR1## wher... | 06/21/1988 |
| 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 |
| 4713190 | Modified carboxylic amide dispersants Carboxylic amide dispersants are reacted with a fluorine-containing acid reagent selected from fluorophosphoric acid, boron trifluoride, fluoboric acid and the ammonium salts thereof. The reaction of the dispersant with the fluorine-containing acid passiv... | 12/15/1987 |
