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| Number | Title | Issue Date |
| 7998340 | Process to prepare a blended brightstock The invention relates to a bright stock base oil blend comprising of a paraffinic base oil component having a viscosity at 100° C. of from 8 to 25 mm^/sec and a residual and de-asphalted oil component, and the use of said blend as part of a gear oil or a cylinder o... | 08/16/2011 |
| 7972496 | Process oil, process for production of deasphalted oil, process for production of extract, and process for production of process oil The present invention is related to a process oil using as a raw material a deasphalted oil obtained by deasphalting a vacuum residual oil of a crude oil and a manufacturing method of the process oil, the process oil having properties of: ... | 07/05/2011 |
| 7682499 | Mineral insulating oil, a process for preparing a mineral insulating oil, and a process for using a mineral insulating oil The invention provides for a mineral insulating oil having a naphthenic base oil and a paraffinic base oil wherein the naphthenic base oil includes a ratio of total sulfur to basic nitrogen of less than about 80:1. The invention also provides for a mineral insulatin... | 03/23/2010 |
| 7666295 | Uninhibited electrical insulating oil An uninhibited electrical insulating oil is prepared by blending a severely hydrotreated naphthenic distillate base oil having a viscosity of from about 50 to about 80 SSU at 38° C. and an aniline point from about 63° to about 84° C. with a solvent extracted, non... | 02/23/2010 |
| 7601253 | Process oil and process for producing the same A process oil comprising a 95/5 to 5/95 by weight mixture of: an extract having a DMSO extractable content less than 3 wt % obtained by solvent-extracting an oil obtained by deasphalting a vacuum distillation bottom; and either a mineral oil base having a DMSO extra... | 10/13/2009 |
| 7520976 | Multigrade engine oil prepared from Fischer-Tropsch distillate base oil A multigrade engine oil meeting the specifications for SAE J300 revised June 2001 requirements and a process for preparing it, said engine oil comprising (a) between about 15 to about 94.5 wt % of a hydroisomerized distillate Fischer-Tropsch base oil characterized b... | 04/21/2009 |
| 7429318 | Process for preparing basestocks having high VI using oxygenated dewaxing catalyst A process for preparing high VI lubricating oil basestocks comprising hydrotreating, hydrodewaxing and optionally hydrofinishing. The hydrotreated feedstock is hydrodewaxed using a dewaxing catalyst that has been selectively activated by oxygenate treatment. The hyd... | 09/30/2008 |
| 7407917 | Lubricating oil composition for automatic transmissions An additive compound comprising a non-borated and/or borated reaction product, in which the reaction product is obtained by reacting a linear or branched, saturated or unsaturated monovalent aliphatic acid having 8 to 22 carbon atoms, urea, and polyalkylenepolyamine... | 08/05/2008 |
| 7404888 | Reducing metal corrosion of hydrocarbons using acidic fischer-tropsch products A process for reducing the metal corrosion of a hydrocarbonaceous liquid which causes corrosion as measured by NACE Standard TM0172-2001, said process comprising blending with the hydrocarbonaceous liquid at least 0.1 weight percent of an acidic Fischer-Tropsch prod... | 07/29/2008 |
| 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 |
| 7347928 | Process to prepare a spindle oil, light machine oil and a medium machine oil base oil grade from the bottoms fraction of a fuels hydrocracking process A process to prepare a spindle oil, light machine oil and a medium machine oil base oil grade by: (a) performing a separate catalytic dewaxing on a spindle oil fraction, a light machine oil fraction and a medium machine oil fraction as obtained in a vac... | 03/25/2008 |
| 7347927 | Oil composition for heat treatment A heat treatment oil composition comprising a mixed base oil containing 50-95 weight % of (A) a low viscosity base oil with kinematic viscosity of 5-60 mm2/s at 40° C., and 50-5 weight % of (B) a high viscosity base oil with kinematic viscosity of more t... | 03/25/2008 |
| 7332072 | Process to prepare a waxy raffinate A process to prepare a waxy raffinate product by (a) hydrocracking/hydroisomerizing a Fischer-Tropsch derived feed, wherein weight ratio of compounds having at least 60 or more carbon atoms and compounds having at least 30 carbon atoms in the Fischer-Tr... | 02/19/2008 |
| 7282134 | Process for manufacturing lubricating base oil with high monocycloparaffins and low multicycloparaffins A process for manufacturing a lubricating base oil by: a) performing Fischer-Tropsch synthesis on syngas to provide a product stream; b) isolating from said product stream a substantially paraffinic wax feed having less than about 30 ppm total nitrogen and sulfur, a... | 10/16/2007 |
| 7241375 | Heavy hydrocarbon composition with utility as a heavy lubricant base stock A heavy hydrocarbon composition with utility as a heavy hydrocarbon base stock comprising at least 95 wt % paraffin molecules, of which at least 90 wt % are isoparaffin, containing hydrocarbon molecules having consecutive numbers of carbon atoms, is a liquid at 100Â... | 07/10/2007 |
| 7217373 | Fluorocarbon, oxygenated and non-oxygenated lubricant, and compatibilizer composition, and method for replacing refrigeration composition in a refrigeration system The present invention relates to refrigerant compositions comprising a fluorocarbon, an oxygenated lubricant, a non-oxygenated lubricant, and a compatibilizer. The present invention further relates to methods for replacing a chlorofluorocarbon and/or hydrochlorofluo... | 05/15/2007 |
| 7195706 | Finished lubricating comprising lubricating base oil with high monocycloparaffins and low multicycloparaffins A process for manufacturing a finished lubricant by: a) performing Fischer-Tropsch synthesis on syngas to provide a product stream; b) isolating from said product stream a substantially paraffinic wax feed having less than about 30 ppm total nitrogen and sulfur, and... | 03/27/2007 |
| 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 |
| 7141157 | Blending of low viscosity Fischer-Tropsch base oils and Fischer-Tropsch derived bottoms or bright stock A process for preparing Fischer-Tropsch derived lubricating base oils by blending a Fischer-Tropsch distillate fraction having a viscosity of 2 or greater but less than 3 cSt at 100 degrees C. with a Fischer-Tropsch derived bottoms fraction; lubricating base oil com... | 11/28/2006 |
| 7083713 | Composition of lubricating base oil with high monocycloparaffins and low multicycloparaffins A composition of lubricating base oil having a weight percent of all molecules with at least one aromatic function less than 0.30, a weight percent of all molecules with at least one cycloparaffin function greater than 10, and a ratio of weight percent of molecules ... | 08/01/2006 |
| 7053254 | Process for improving the lubricating properties of base oils using a Fischer-Tropsch derived bottoms A method for improving the lubricating properties of a distillate base oil characterized by a pour point of 0 degrees C. or less and a boiling range having the 10 percent point falling between about 625 degrees F. and about 790 degrees F. and the 90 percent point fa... | 05/30/2006 |
| 7045055 | Method of operating a wormgear drive at high energy efficiency This invention is directed to a method of operating a wormgear drive at high energy efficiency comprising filling an oil reservoir with a wormgear lubricant comprising an isomerized Fischer-Tropsch derived distillate fraction having a low traction coefficient and op... | 05/16/2006 |
| 7015178 | Lube base oil composition Disclosed is a lubricant base oil composition that comprises (a) from 80 to 98% by mass of a naphthenic synthetic lubricant base oil having a flash point of not lower than 140° C. and (b) from 2 to 20% by mass of an alcohol/fatty acid ester having a flash point of ... | 03/21/2006 |
| 7005059 | Catalyst having at least one element of group VIIB and its use in hydro-treating The invention relates to a catalyst for the transformation of hydrocarbon-containing feedstocks, in particular hydrotreatment, comprising at least one metal of group VIIB and at least one hydro-dehydrogenating metal (of the non-noble metals of group VIII and/or the ... | 02/28/2006 |
| 6872693 | Mineral gear oils and transmission fluids This invention relates to mineral oil based gear oils and transmission fluids which comprise a major amount of a mineral oil having an iodine number of less than 9 and where at least 55% of the saturates are aliphatic, and gear oil or transmission fluid additives. I... | 03/29/2005 |
| 6869917 | Functional fluid lubricant using low Noack volatility base stock fluids The present invention relates to a fully formulated lubicants comprising poly α-olefins (PAOs), prepared from a mixed α-olefin feed, which exhibit superior Noack volatility at low pour points, and methods for preparing the fully formulated lubricants. The fully fo... | 03/22/2005 |
| 6833065 | Lube base oils with improved yield The invention provides methods for preparing a blended lube base oils comprising at least one highly paraffinic Fischer Tropsch lube base stocks and at least one base stock composed of alkylaromatics, alkylcycloparaffins, or mixtures thereof. The use of base stocks ... | 12/21/2004 |
| 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 |
| 6824671 | Low noack volatility poly α-olefins The present invention relates to poly α-olefins (PAO's) which exhibit superior Noack volatility at low pour points. Mixtures of 1-decene and 1-dodecene are polymerized using an alcohol promoted BF3 in conjunction with a combination of cocatalysts. The re... | 11/30/2004 |
| 6821933 | Additives for improving the cold flow properties and the storage stability of crude oil The invention relates to additives for improving the flowability of mineral oils, containing: A) 1-40 wt. % of at least one copolymer, which is oil-soluble and improves the cold flow properties of mineral oil, selected from A1) cop... | 11/23/2004 |
| 6806237 | Lube base oils with improved stability A lube base oil comprising a synthetic lube base oil, such as a Fischer Tropsch-derived component, and a non-synthetic lube base oil is defined that has improved stability to oxidation both during storage and during use in engines or other applications, even in the ... | 10/19/2004 |
| 6787022 | Winter diesel fuel production from a fischer-tropsch wax A process for the production of a winter diesel fuel from wax containing hydrocarbons produced by the Fischer-Tropsch hydrocarbon synthesis process. A 300° F.+ Fischer-Tropsch fraction is upgraded first by hydroisomerization followed by catalytic dewaxing resulting... | 09/07/2004 |
| 6713438 | High performance engine oil High performance engine oils and other liquid lubricants comprise a liquid lubricant basestock of low viscosity from 1.5 to 12 cSt (100C) with two dissolved polymer components of differing molecular weights. The basestock is preferably a single PAO or blend of PAOs ... | 03/30/2004 |
| 6703353 | Blending of low viscosity Fischer-Tropsch base oils to produce high quality lubricating base oils A process for preparing Fischer-Tropsch derived lubricating base oils by blending a Fischer-Tropsch distillate fraction having a viscosity of 2 or greater but less than 3 cSt at 100 degrees C. with at least one additional Fischer-Tropsch derived distillat... | 03/09/2004 |
| 6686511 | Process for making a lube base stock from a lower molecular weight feedstock using at least two oligomerization zones A process for making a lube base stock wherein an olefinic feedstock is separated into a light olefin fraction and a medium olefin fraction. The light olefin fraction is contacted with a first oligomerization catalyst in a first oligomerization zone to pr... | 02/03/2004 |
| 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 |
| 6627779 | Lube base oils with improved yield The invention provides methods for preparing a blended lube base oils comprising at least one highly paraffinic Fischer Tropsch lube base stocks and at least one base stock composed of alkylaromatics, alkylcycloparaffins, or mixtures thereof. The use of b... | 09/30/2003 |
| 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 |
| 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 |
| 6534453 | Light oil composition The inventions relate to light oil compositions comprising a base oil, not less than 0.01% by volume of a light oil resulting from catalytic cracking and 20 to 200 ppm (on the weight basis) of a lubricity improver, with a total sulfur content of not more ... | 03/18/2003 |
