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| Number | Title | Issue Date |
| 7384536 | Processes for making lubricant blends with low brookfield viscosities Lubricant blends and finished gear oils comprising a Fischer-Tropsch derived lubricant base oil fraction, a petroleum derived base oil, and a pour point depressant are provided. The Fischer-Tropsch derived lubricant base oil fraction comprises less than 0.30 weight ... | 06/10/2008 |
| 7371906 | Process for photo-oxidative stability improvements A process for improving the stability to photo-oxidation of a polycyclic aromatic compound having at least two polymorphic forms comprises treating a first polymorph with one or more solvents to obtain the more stable second polymorph and then separating the second ... | 05/13/2008 |
| 7358217 | Quenching oil compositions Quenching oil compositions comprising (1) an oil having kinematic viscosity (ASTM Test Method D-445) at 40° C. ranging from about 4 to about 45 mm2sec−1 (about 40 to about 210 Saybolt Universal Seconds (SUS)) and having a saturated content from about 80% to about... | 04/15/2008 |
| 7329772 | Method for the preparation of a hydroxyalkyl hindered phenolic antioxidant A method of making a hindered phenolic antioxidant is disclosed wherein the method comprises: reacting an ester of the formula: wherein ... | 02/12/2008 |
| 7144497 | Blending of low viscosity Fischer-Tropsch base oils with conventional base oils to produce high quality lubricating base oils A process for producing a lubricating base oil blend which comprises (a) recovering a Fischer-Tropsch derived distillate fraction characterized by a kinematic viscosity of about 2 cSt or greater but less than 3 cSt at 100 degrees C.; and (b) blending the Fischer-Tro... | 12/05/2006 |
| 7096942 | In situ thermal processing of a relatively permeable formation while controlling pressure A method for treating a relatively permeable formation containing heavy hydrocarbons in situ may include providing heat from one or more heat sources to a portion of the formation. The heat may be allowed to transfer from the heat sources to a selected section of th... | 08/29/2006 |
| 7040399 | In situ thermal processing of an oil shale formation using a controlled heating rate An oil shale formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the format... | 05/09/2006 |
| 7040400 | In situ thermal processing of a relatively impermeable formation using an open wellbore A method for treating a relatively low permeability formation containing heavy hydrocarbons in situ may include providing heat from one or more heat sources to a portion of the formation. The heat may be allowed to transfer from the heat sources to a selected sectio... | 05/09/2006 |
| 7022220 | C-nitrosoaniline compounds and their blends as polymerization inhibitors Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of at least one inhibitor selected from the group consisting of C-nitrosoaniline and quinone imine o... | 04/04/2006 |
| 6994160 | In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number range A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 02/07/2006 |
| 6923257 | In situ thermal processing of an oil shale formation to produce a condensate An oil shale formation may be treated using an in situ thermal process. Hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyro... | 08/02/2005 |
| 6923258 | In situ thermal processsing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 08/02/2005 |
| 6918442 | In situ thermal processing of an oil shale formation in a reducing environment An oil shale formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the format... | 07/19/2005 |
| 6902663 | C-nitrosoaniline compounds and their blends as polymerization inhibitors Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of at least one inhibitor selected from the group consisting of C-nitrosoaniline and quinone imine o... | 06/07/2005 |
| 6833484 | Inhibiting oxidation of a Fischer-Tropsch product using petroleum-derived products The present invention relates blended hydrocarbonaceous products comprising Fischer Tropsch derived products that resist oxidation and to methods of inhibiting oxidation in Fischer Tropsch products. The present invention also relates to Fischer Tropsch products cont... | 12/21/2004 |
| 6803492 | Additives based on components present in petroleum for improving the cold flow properties of crude and distillate oils The invention relates to an additive for improving the cold-flow properties of crude and distillate oils, where the additive is obtainable by extraction of crude oil with supercritical gas. ... | 10/12/2004 |
| 6797846 | Fibrous crystal aggregates, preparation method thereof and use thereof A crystal substance formed by precipitating as fibrous aggregates by making a metal aliphatic carboxylate dissolve completely in pure water, stirring, and gradually cooling the resulting solution. A method of preparing the fibrous crystal aggregates. A material for ... | 09/28/2004 |
| 6761818 | Heavy oil-solid composition and method for preparing the same The invention includes a compositon of matter comprising a heavy oil having dispersed therein surface modified solid wherein said surface modified solids comprise solids having adsorbed thereon air oxidized polar hydrocarbons from said heavy oil and wherein said sur... | 07/13/2004 |
| 6742588 | In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin content A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o... | 06/01/2004 |
| 6729396 | In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to... | 05/04/2004 |
| 6717021 | Solvating component and solvent system for mesophase pitch A solvating component for a solvated mesophase pitch. The solvated component includes a mixture of aromatic hydrocarbons having boiling points in the atmospheric equivalent boiling point range of about 285° to about 500° C. (about 550° F.-932° F.). At least 80% ... | 04/06/2004 |
| 6638417 | Traction drive fluid A traction drive fluid is provided containing a naphthenic compound represented by the formula: ##STR1## wherein R1 is an alkyl group having 1 to 8 carbon atoms, R2 through R4 are each independently hydrogen or an alky... | 10/28/2003 |
| 6610634 | Two-cycle lubricating oil A two-cycle oil is disclosed consisting of a polybutene polymer, solvent and mineral oil which passes the JASO engine test for gasoline fueled two-cycle engines.... | 08/26/2003 |
| 6596911 | Composition and method for inhibition of formation of gas hydrates A method and a composition used therein are disclosed for inhibiting formation of hydrocarbon hydrates. The composition comprises an onium compound, an amine salt and, optionally, a solvent. The method and composition are particularly useful for oil and g... | 07/22/2003 |
| 6586488 | Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and hydrocarbons Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and at least one hydrocarbon selected from the group n-pentane, iso-pentane, cyclopentane, n-hexane and iso-hexane are provided. The compositions of the invention are useful in the preparation of... | 07/01/2003 |
| 6570045 | Methods of solidifying low-boiling-point hydrocarbon and handling the same, and regeneration thereof Disclosed are a method of solidifying a low-boiling-point hydrocarbon, wherein the low-boiling-point hydrocarbon (including hydrocarbons which are gaseous at ordinary temperature) is brought into contact with a metal salt of an aliphatic carboxylic acid, ... | 05/27/2003 |
| 6562230 | Synthesis of narrow lube cuts from Fischer-Tropsch products A process for preparing hydrocarbons in the lube base oil range, lube base oils and lube oil compositions from a fraction with an average molecular weight above a target molecular weight and a fraction with an average molecular weight below a target molec... | 05/13/2003 |
| 6524468 | Heavy oil - solid composition and method for preparing the same The invention includes a compositon of matter comprising a heavy oil having dispersed therein surface modified solid wherein said surface modified solids comprise solids having adsorbed thereon air oxidized polar hydrocarbons from said heavy oil and where... | 02/25/2003 |
| 6506806 | Reduction of surface tension A composition for reducing surface tension comprising from about 0.1% to about 0.5% by weight of a hydrocarbon surfactant and from 0.0001% to about 0.3% by weight of a fluorocarbon surfactant, provided that the hydrocarbon surfactant is present at less th... | 01/14/2003 |
| 6475960 | Premium synthetic lubricants Premium synthetic lubricants comprise a synthetic isoparaffinic hydrocarbon base stock and an effective amount of at least one, and typically a plurality of lubricant additives such as a detergent, dispersant, antioxidant, antiwear additive, pout point de... | 11/05/2002 |
| 6461421 | Hydrocarbonaceous composition containing odor suppressant This invention relates to a composition, comprising: (A) an odor-emitting hydrocarbonaceous material; and (B) an odor-suppressing amount of an aldehyde or a ketone, and a carboxylic acid ester.... | 10/08/2002 |
| 6417415 | Methods of solidifying low-boiling-point hydrocarbon and handling the same, and regeneration thereof Disclosed are a method of solidifying a low-boiling-point hydrocarbon, wherein the low-boiling-point hydrocarbon (including hydrocarbons which are gaseous at ordinary temperature) is brought into contact with a metal salt of an aliphatic carboxylic acid, ... | 07/09/2002 |
| 6410810 | Handling method of (fluoroaryl) borane compound and preparing method of hydrocarbon solution A mixture of bis- and tris(fluoroaryl)borane compounds expressed by General Formula (1) below is handled in the form of a slurry made with a hydrocarbon solvent: ##STR1## where each of R1, R2, R3, R4 and R5... | 06/25/2002 |
| 6409887 | Polymerization inhibitor A monomer composition, stabilized against premature polymerization, comprising: a) an ethylenically unsaturated monomer or mixture of monomers polymerizable by free radical initiation, and b) an effective amount, sufficient to inhibit premature polymeriza... | 06/25/2002 |
| 6399697 | Process oil, process for producing the same and rubber composition Process oil which satisfies requirements that a content of a polycyclic aromatic compound is less than 3% by weight, a content of an aromatic hydrocarbon is 18% by weight or more, a content of a polar compound is between 11 and 25% by weight, a kinematic ... | 06/04/2002 |
| 6383281 | Molding composition for producing powder metallurgical or ceramic products The present invention relates to a molding composition based on sinterable materials, comprising a) from 80 to 99.5% by weight of sinterable powder having a maximum particle size of 2000 μm, b) from 0.5 to 20% by weight of metallocene polyolefin wax, c) if de... | 05/07/2002 |
| 6339051 | Diesel engine cylinder oils Diesel engine cylinder oils of improved cleanliness and load carrying ability and reduced port deposit characteristics for use in marine and stationary slow speed diesel engines are based on medium heavy Group I or Group II neutral base oils, typically fr... | 01/15/2002 |
| 6316393 | Modified lubricated ferrous powder compositions for cold and warm pressing applications Metal powder compositions for powder metallurgy (P/M) applications contain an oxidized high-density polyethylene as a lubricant. The compositions are suitable for either cold or warm compaction. When compacted, the compositions yield parts having relative... | 11/13/2001 |
| 6277269 | Producing pipelineable bitumen A bitumen is rendered pipelineable by partially hydroconverting the bitumen and then adding sufficient diluent to the partially hydroconverted bitumen to provide a mixture having an API gravity at 15° C. of at least 19° and a viscosity at 40° C. in the... | 08/21/2001 |
| 6232518 | Removal of benzene from organic streams using cyclodextrins A method for separating benzene from a hydrocarbon mixture containing benzene and at least one other organic material is carried out by treating the hydrocarbon mixture with at least one cyclodextrin to form complexes of the cyclodextrin with at least a p... | 05/15/2001 |
