Compound Of Indeterminate Structure Prepared By Reacting An Organic -c(=o)o- Compound Patents (Class 44/386)
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Patent number: 6846783Abstract: Hydrocarbyl substituted carboxylic compositions and derivatives thereof useful as additives for lubricating oil and fuel compositions. Carboxylic composition are derived from (A) an olefinically unsaturated hydrocarbon, said hydrocarbon having at least one allylic hydrogen atom, and (B) an ?,?-unsaturated carboxylic compound prepared by reacting (1) an active methylene compound of the formula ?and (2) a carbonyl compound of the general formula ?wherein Ra is H or hydrocarbyl and Rb is a member of the group consisting of H, hydrocarbyl and ?wherein each R? is independently R or OR and each R is, independently, H or a hydrocarbyl group; and lower alkyl acetals, ketals, hemiacetals and hemiketals of the carbonyl compound (2).Type: GrantFiled: June 21, 2001Date of Patent: January 25, 2005Assignee: The Lubrizol CorporationInventors: Stuart L. Bartley, James D. Burrington, Richard Yodice
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Publication number: 20040237385Abstract: A fuel oil composition is comprised of diesel oil and a lubricity additive of the formula (I):Type: ApplicationFiled: March 1, 2004Publication date: December 2, 2004Inventors: Frank Bongardt, Juergen Roeder
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Publication number: 20040220060Abstract: Hydrocarbyl substituted carboxylic compositions and derivatives thereof useful as additives for lubricating oil and fuel compositions.Type: ApplicationFiled: December 18, 2002Publication date: November 4, 2004Inventors: Stuart L Bartley, James D Burrington, Richard Yodice
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Patent number: 6802874Abstract: The invention disclosed herein relates to linear compounds in the form of oligomers or polymers containing unsubstituted or substituted phenol units and unsubstituted or substituted salicylic acid units. These compounds are useful as additives for lubricants and fuels. Metal salts of these compounds are useful as lubricant additives. A process for making these compounds is disclosed.Type: GrantFiled: June 16, 2003Date of Patent: October 12, 2004Assignee: The Lubrizol CorporationInventors: David John Moreton, Rodney John McAtee
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Patent number: 6780209Abstract: The disclosed invention relates to a composition comprising a partially dehydrated product made by: (I) reacting (A) a hydrocarbyl substituted succinic acid or anhydride with (B) a polyol, a polyamine, a hydroxyamine, or a mixture of two or more thereof, to form a first intermediate product comprising: an ester, partial ester or mixture thereof when (B) is a polyol; an amide, imide, salt, amide/salt, partial amide or mixture of two or more thereof when (B) is a polyamine; or an ester, partial ester, amide, partial amide, amide/salt, imide, ester/salt, salt or a mixture of two or more thereof when (B) is a hydroxyamine, a mixture of a polyol and a polyamine, a mixture of a polyol and a hydroxyamine, a mixture of a polyamine and a hydroxyamine, or a mixture of a polyol, a polyamine and a hydroxyamine; the hydrocarbyl substituent of said acid or anhydride having an average of about 8 to about 200 carbon atoms; and (II) heating said first intermediate product at an effective temperature to form a second intermeType: GrantFiled: January 24, 2000Date of Patent: August 24, 2004Assignee: The Lubrizol CorporationInventors: Brian B. Filippini, Richard M. Lange, Bryan A. Grisso, Bryn Hird
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Publication number: 20040123514Abstract: The invention disclosed herein relates to linear compounds in the form of oligomers or polymers containing unsubstituted or substituted phenol units and unsubstituted or substituted salicylic acid units. These compounds are useful as additives for lubricants and fuels. Metal salts of these compounds are useful as lubricant additives. A process for making these compounds is disclosed.Type: ApplicationFiled: June 16, 2003Publication date: July 1, 2004Inventors: David John Moreton, Rodney John McAtee
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Publication number: 20040014612Abstract: This invention relates to a novel multi-functional fuel and lubricant additive that provides dispersancy properties as well as viscosity index improver credit and, improved fuel economy. The invention further relates to concentrates, and to fuel and lubricating oil compositions containing said additive or concentrates. Finally, the invention provides methods for improving fuel economy, improving dispersancy, and for preparing the hybridized, acylated olefin copolymer useful as an oil additive.Type: ApplicationFiled: July 17, 2002Publication date: January 22, 2004Inventors: Carl K. Esche, Charles Thomas West
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Patent number: 6677282Abstract: Hydrocarbyl substituted carboxylic compositions and derivatives thereof useful as dispersant/viscosity improvers for lubricating oil and fuel compositions. Carboxylic compositions are derived from (A) a hydrocarbon polymer having Mn ranging from about 20,000 to about 500,000, and (B) an &agr;,&bgr;-unsaturated carboxylic compound prepared by reacting (1) an active methylene compound of the formula (I), and (2) a carbonyl compound of the general formula (II), wherein Ra is H or hydrocarbyl and Rb is a member of the group consisting of H, hydrocarbyl and (III), wherein each R′ is independently R or OR and each R is, independently, H or a hydrocarbyl group; and lower alkyl acetals, ketals, hemiacetals and hemiketals of the carbonyl compound (2).Type: GrantFiled: December 16, 2002Date of Patent: January 13, 2004Assignee: The Lubrizol CorporationInventors: Richard M. Lange, Stuart L. Bartley, Daniel M. Vargo
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Patent number: 6652607Abstract: A process to make water-blended fuel by emulsifying the emulsifier in a portion of the fuel, then adding the water under high shear mixing to give a concentrated water fuel emulsion. The concentrated emulsion is then diluted with final portion of fuel using mixing or blending conditions resulting in an emulsified water blend fuel.Type: GrantFiled: December 6, 2000Date of Patent: November 25, 2003Assignee: The Lubrizol CorporationInventors: Deborah A. Langer, John J. Mullay, Jennifer N. Fakult, Harshida C. Daves, William E. Skoch, David L. Westfall
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Publication number: 20030177690Abstract: Compounds which contain one or more groups of the formula (I)Type: ApplicationFiled: March 5, 2003Publication date: September 25, 2003Inventors: Lars Wittkowski, Jan Nouwen, Hans-Henning Vogel, Ansgar Eisenbeis
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Publication number: 20030172584Abstract: A middle distillate fuel additive comprising the reaction product resulting from the combining of a hydrocarbyl succinic anhydride and a hydroxyamine. The lubricating properties of low sulfur-content middle distillate fuels, such as diesel, jet or bio-diesel fuels, can be significantly improved by inclusion therein of such additive compounds. The use of these middle distillate fuel additives makes it possible to avoid mechanical failure problems, such as fuel pump or injector failure, otherwise caused by inadequate fuel lubricity, while still retaining the environmental benefits of using a low sulfur fuel.Type: ApplicationFiled: March 13, 2002Publication date: September 18, 2003Inventors: Timothy J. Henly, John T. Loper, Scott D. Schwab
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Publication number: 20030163951Abstract: The invention concerns a multifunctional additive enabling fuels to be operable in cold conditions, consisting of copolymers of at least a dicarboxylic compound with at least an olefin, and whereon are grafted nitrogenous functions and/or esters of general formula (I) wherein: R1 and R2, and R4 and R5, R3 and R6 are hydrogen or alkyl radicals, and x is selected among the amine salts and N-alkylpolyalkylenepolyamines and their monohydroxylated and polyhydroxylated derivatives, N-alkylpolyalkylenepolyamine alkylesters and esters, and alkylamines and N-alkylpolyalkylenepolyamines.Type: ApplicationFiled: November 18, 2002Publication date: September 4, 2003Inventors: Frank G Eydoux, Philippe Puf Flores, Dominique Vichard, Laurent Germaunaud
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Patent number: 6610110Abstract: A novel aviation fuel characterized by having a low freeze point (typically no higher than −40° C.Type: GrantFiled: February 11, 2000Date of Patent: August 26, 2003Assignee: The Lubrizol CorporationInventor: John S. Manka
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Patent number: 6599335Abstract: Copolymers based on ethylene and unsaturated carboxylic esters and their use as mineral oil additives. The invention relates to copolymers of low olefins and vinyl esters, containing a) from 85 to 97 mol % of bivalent structural units of the formula 1 —CH2—CR1R2— 1 in which R1 and R2, independently of one another, are hydrogen or methyl, and b) at least 3 mol % of bivalent structural units of the formula 2 in which R3 is saturated, branched C6-C16-alkyl which has a tertiary carbon atom, wherein R3 is bonded by its tertiary carbon atom to the carboxyl function. The copolymers according to the invention are used as flow improvers for mineral oil distillates.Type: GrantFiled: November 6, 2000Date of Patent: July 29, 2003Assignee: Clariant GmbHInventors: Matthias Krull, Markus Kupetz, Raimund Wildfang
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Publication number: 20030136047Abstract: Disclosed are fuel compositions for internal combustion engines comprising as a predominant component organic distillates which exhibit suitable physical properties, and a low-sulfur fraction of an alkylated petroleum feedstock which, for example, consisted of material boiling between about 60° C. and about 345° C. More particularly, compositions of the invention comprise low-boiling, low-sulfur, blending components, advantageously obtained by a process for converting sulfur-containing organic compounds which are unwanted impurities, to higher boiling products by alkylation and removing the higher boiling products by fractional distillation. Products can be used directly as transportation fuels and/or blending components to provide fuels which are more friendly to the environment.Type: ApplicationFiled: October 24, 2002Publication date: July 24, 2003Inventors: Graham W. Ketley, Michael Hodges
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Patent number: 6596038Abstract: The invention disclosed herein relates to linear compounds in the form of oligomers or polymers containing unsubstituted or substituted phenol units and unsubstituted or substituted salicylic acid units. These compounds are useful as additives for lubricants and fuels. Metal salts of these compounds are useful as lubricant additives. The process for making these compounds involves reacting phenol units and salicylic acid units in an organic solvent.Type: GrantFiled: March 9, 2001Date of Patent: July 22, 2003Assignee: The Lubrizol CorporationInventors: David John Moreton, Rodney John McAtee
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Publication number: 20020184814Abstract: A novel aviation fuel characterized by having a low freeze point (typically no higher than −40° C.Type: ApplicationFiled: May 20, 2002Publication date: December 12, 2002Applicant: The Lubrizol Corporation, a corporation of the state of OhioInventor: John S. Manka
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Patent number: 6391070Abstract: It has been discovered that less expensive, and in some cases synergistically effective anti-static additive blends may be added to hydrocarbon fuels to improve the conductivity thereof. The blend includes an anti-static amount of at least one hydrocarbon soluble copolymer of an alkylvinyl monomer and a cationic vinyl monomer and an anti-static amount of at least one hydrocarbon soluble polysulfone copolymer of at least one olefin and sulfur dioxide. Optional ingredients include polymeric polyamines and aryl sulfonic acids.Type: GrantFiled: April 16, 2001Date of Patent: May 21, 2002Assignee: Baker Hughes IncorporatedInventor: John A. Schield
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Patent number: 6391071Abstract: The present invention relates to the use of oil-soluble copolymers which comprise A) from 5 to 80 mol-% of structural units derived from olefinically unsaturated compounds containing at least one free hydroxyl group, B) from 5 to 95 mol-% of structural units derived from olefinically unsaturated compounds carrying a hydrocarbon radical having at least 6 carbon atoms, and, if desired, C) from 0 to 40 mol-% of further structural units selected from the group consisting of acrylic acid, acrylates, vinyl esters, vinylethane and alkenes, with the proviso that the structural units mentioned under C) are different from the structural units mentioned under A) and B), and have a mean molecular weight Mw of from 500 to 100,000 g/mol and an OH number of from 10 to 300 mg of KOH/g, for improving the lubricity and cold flow properties of middle distillates having a sulfur content of less than 0.5% by weight.Type: GrantFiled: June 9, 2000Date of Patent: May 21, 2002Assignee: Clariant GmbHInventors: Matthias Krull, Markus Kupetz
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Patent number: 6383237Abstract: This invention relates to a process for making an aqueous hydrocarbon fuel composition, comprising: (A) mixing a normally liquid hydrocarbon fuel and at least one chemical additive to form a hydrocarbon fuel-additive mixture; and (B) mixing said hydrocarbon fuel-additive mixture with water under high shear mixing conditions in a high shear mixer to form said aqueous hydrocarbon fuel composition, said aqueous hydrocarbon fuel composition including a discontinuous aqueous phase, said discontinuous aqueous phase being comprised of aqueous droplets having a mean diameter of 1.0 micron or less. An apparatus for operating the foregoing process is also disclosed. Aqueous hydrocarbon fuel compositions are disclosed.Type: GrantFiled: January 14, 2000Date of Patent: May 7, 2002Inventors: Deborah A. Langer, David L. Westfall, Morris E. Smith, Robert T. Graf, Harshida Dave, John J. Mullay, Daniel T. Daly, Elizabeth A. Schiferl, Brian B. Filippini, William D. Abraham, Jennifer N. Fakult
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Patent number: 6364918Abstract: Oil-soluble copolymers having an OH number of from 10 to 250 and a molecular weight of from 1000 to 100,000 g/mol, obtained from the reaction of a copolymer precursor which comprises structural units of A) from 5 to 95 mol-% of an olefinically unsaturated carboxylic acid or a derivative of such an acid, B) from 5 to 95 mol-% of an olefinically unsaturated compound having at least one hydrocarbon radical containing at least 6 carbon atoms, and, if desired, C) from 0 to 40 mol-% of further structural units selected from the group consisting of C1-C6-alkyl (meth)acrylates, C1-C6-alkyl vinyl esters and C2-C6-olefins, with a reagent, which must carry at least one OH group and which, apart from this OH group, has at least one further functional group which is capable of reacting with the carboxylic acid or the derivative of a carboxylic acid as in component A), where the residual acid number is set to a value below 50 mg of KOH/g of copolymer by addition of the reagent.Type: GrantFiled: June 9, 2000Date of Patent: April 2, 2002Assignee: Clariant GmbHInventors: Matthias Krull, Waltraud Nagel
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Patent number: 6361573Abstract: Reaction products of i) a hydroxyl-group containing compound; ii) an amine-group containing compound, wherein component ii) is different from component i); and iii) a hydrocarbyl-substituted succinic acylating agent provide improved detergency as well as improved lubricity to hydrocarbon fuels. Compositions comprising a hydrocarbon fuel and the reaction products are also disclosed.Type: GrantFiled: August 31, 1999Date of Patent: March 26, 2002Assignee: Ethyl CorporationInventor: Timothy J. Henly
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Patent number: 6296677Abstract: The lubricity (anti-wear properties) of fuels, for example hydrocarbon fuels, oxygenated fuels or mixtures thereof, particularly diesel or aviation fuels having reduced sulphur and/or aromatic content for compliance with regulator requirements, is improved by addition of at least a product which can be obtained by reacting components a), b) and c), where component a) is a compound of the formula I or a mixture of compounds of the formula I, component b) is a compound of the formula II or a mixture of compounds of the formula II and component c) is a compound of the formula III or a mixture of compounds of the formula III, in which the general symbols are as defined in claim 1, the compound of the formula I being, for example, pentaerythritol, thiodiethylene glycol, 1,4-butanediol, 1,4-propanediol, diethylene glycol, triethylene glycol, diethanolamine or glycerol, the compound of the formula II being, for example, sunflower oil or coconut fat, and the compound of the formula III being, for exType: GrantFiled: February 2, 1998Date of Patent: October 2, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Marc Ribeaud, Paul Dubs, Michael Rasberger, Samuel Evans
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Patent number: 6280485Abstract: This invention relates to an emulsified water-blended fuel composition comprising: (A) a hydrocarbon boiling in the gasoline or diesel range; (B) water; (C) a minor emulsifying amount of at least one fuel-soluble salt made by reacting (C)(I) at least one acylating agent having about 16 to 500 carbon atoms with (C)(II) ammonia and/or at least one amine; and (D) about 0.001 to about 15% by weight of the water-blended fuel composition of a water soluble, ashless, halogen-, boron-, and phosphorus-free, amine salt, distinct from component (C). In one embodiment, the composition further comprises (E) at least one cosurfactant distinct from component (C); in one embodiment, (F) at least one organic cetane improver; and in one embodiment, (G) at least one antifreeze. The invention also relates to a method for fueling an internal combustion engine comprising fueling said engine with the composition of the present invention.Type: GrantFiled: September 7, 1999Date of Patent: August 28, 2001Assignee: The Lubrizol CorporationInventors: Daniel T. Daly, John J. Mullay, Elizabeth A. Schiferl, Deborah A. Langer, David L. Westfall, Harshida Dave, Brian B. Filippini, William D. Abraham
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Patent number: 6270538Abstract: Oils having improved low temperature properties and additives for use therein.Type: GrantFiled: May 21, 1999Date of Patent: August 7, 2001Assignee: Exxon Chemical Patents INCInventors: Christophe Ledeore, Graham Jackson, Robert Dryden Tack, Iain More
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Patent number: 6248702Abstract: 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 two different conjugated dienes and an aryl-substituted olefin. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.Type: GrantFiled: November 30, 1998Date of Patent: June 19, 2001Assignee: Mobil Oil CorporationInventors: Thomas S. Coolbaugh, Frederick C. Loveless, John E. Marlin, II, Demetreos N. Matthews
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Patent number: 6200936Abstract: This invention relates to a cyclic compound comprising m units of formula (Ia) and n units of the formula (Ib) joined together to form a ring, wherein each Y is a divalent bridging group which may be the same or different in each unit; R0 is H or an alkyl group of 1 to 6 carbon atoms; R5 is H or an alkyl group of 1 to 60 carbon atoms; j is 1 or 2; R3 is hydrogen, a hydrocarbyl or a hetero-substituted hydorcarbyl group; either R1 is hydroxy and R2 and R4 are independently either hydrogen, hydrocarbyl or hetero-substituted hydrocarbyl, or R2 and R4 are hydroxyl and R1 is either hydrogen, hydrocarbyl or hetero-substituted hydrocarbyl; m is from 1 to 8; n is at least 3, and m +n is 4 to 20. This invention also relates to metal salts of the foregoing compound, especially overbased metal salts. The invention also relates to additive compositions, finished lubricating oil compositions and fuel compositions containing the foregoing compound or metal salt thereof.Type: GrantFiled: May 26, 1999Date of Patent: March 13, 2001Assignee: The Lubrizol CorporationInventor: David John Moreton
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Patent number: 6183524Abstract: A polymeric fuel additive, a method of making the additive, and a fuel containing the additive are disclosed. The additive is prepared by isothermally mixing an ethoxylated alcohol and an amide, wherein the ethoxylated alcohol comprises at least about 75 weight percent of at least one linear, straight-chain alcohol having a hydrocarbon chain length of about nine to about fifteen carbon atoms, and wherein the amide is formed by reacting an alcohol amine with an equimolar amount of an alkyl ester of a fatty acid or derivative. The alcohol/amide product is isothermally mixed with a substantially equimolar amount of an ethoxylated fatty acid having a hydrocarbon chain length of about nine to about fifteen carbon atoms to produce the polymeric additive. The inventive method is carried out with gentle mixing so as to avoid molecular degradation of the additive.Type: GrantFiled: April 11, 2000Date of Patent: February 6, 2001Assignee: Pure Energy CorporationInventor: Irshad Ahmed
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Patent number: 6080211Abstract: Liquid energy sources, e.g., liquid fuels comprising lipid vesicles having fuel additives such as water are disclosed herein. The liquid energy sources, methods for preparation, and methods of enhancing engine performance disclosed herein employing the lipid vesicles result in enhanced fuel efficiency and/or lowered engine emissions. The invention further relates to liquid energy sources containing such additives which further comprise a polymeric dispersion assistant, which reduces the interfacial tension and coalescence of vesicles during dispersion process and storage, and thereby provide transparent looks to the liquid energy source.Type: GrantFiled: February 19, 1999Date of Patent: June 27, 2000Assignee: Igen, Inc.Inventor: Rajiv Mathur
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Patent number: 6074445Abstract: A polymeric fuel additive, a method of making the additive, and a fuel containing the additive are disclosed. The additive is prepared by isothermally mixing an ethoxylated alcohol and an amide, wherein the ethoxylated alcohol comprises at least about 75 weight percent of at least one linear, straight-chain alcohol having a hydrocarbon chain length of about nine to about fifteen carbon atoms, and wherein the amide is formed by reacting an alcohol amine with an equimolar amount of an alkyl ester of a fatty acid or derivative. The alcohol/amide product is isothermally mixed with a substantially equimolar amount of an ethoxylated fatty acid having a hydrocarbon chain length of about nine to about fifteen carbon atoms to produce the polymeric additive. The inventive method is carried out with gentle mixing so as to avoid molecular degradation of the additive.Type: GrantFiled: October 20, 1997Date of Patent: June 13, 2000Assignee: Pure Energy CorporationInventor: Irshad Ahmed
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Patent number: 6001141Abstract: Low sulfur content fuel compositions containing additive compounds are described which exhibit improved lubricity. The additive compounds include a carboxylic acid substituted by at least one hydroxyl group, derivatives of the carboxylic acid substituted by at least one hydroxyl group, and an ester which is the reaction product of a carboxylic acid which does not contain any hydroxy-substitution in the acid backbone and an alkanolamine.Type: GrantFiled: November 12, 1996Date of Patent: December 14, 1999Assignee: Ethyl Petroleum Additives, Ltd.Inventor: Robert Quigley
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Patent number: 5976202Abstract: Reaction products of polyolefins having predominantly a terminal double bond and a number average molecular weight of from 250 to 10,000, which possess an aliphatic hydrocarbon skeleton which is straight-chain or carries C.sub.1 -C.sub.4 -alkyl side chains, with from 1 to 10 mol, per equivalent of double bond, of one or more vinyl esters I ##STR1## are obtainable by reacting the stated polyolefins with the vinyl esters I in the presence of a free radical initiator at from 80 to 200.degree. C., it being possible for these reaction products subsequently to have been hydrolyzed to the corresponding alcohols or converted into the corresponding amines by reductive amination with amines II ##STR2## .Type: GrantFiled: July 20, 1995Date of Patent: November 2, 1999Assignee: BASF AktiengesellschaftInventors: Hans Peter Rath, Helmut Mach, Harald Schwahn, Hans-Joachim Muller, Wolfgang Reif, Thomas Ruhl
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Patent number: 5972057Abstract: A production method of diesel fuel oil from waste oil, in which a vegetable diesel fuel oil can be obtained by utilizing as a raw material a waste edible oil dumped from restaurant, food industry, home, etc. and scarcely utilized.Type: GrantFiled: September 3, 1998Date of Patent: October 26, 1999Assignee: Lonford Development LimitedInventors: Shigeto Hayafuji, Takeo Shimidzu, Shosei Oh, Hiroaki Zaima
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Patent number: 5912190Abstract: A process of improving the combustion of fuel and/or improving the oxidation of carbonaceous products derived from the combustion or pyrolysis of fuel is described. The process comprises adding to the fuel before the combustion thereof a composition comprising a mixture of organo-metallic complexes, characterised in that the organo-metallic complexes only consist of Group I and Group II organo-metallic complexes and wherein the composition comprises at least one Group I organo-metallic complex and at least one Group II organo-metallic complex.Type: GrantFiled: February 2, 1998Date of Patent: June 15, 1999Assignee: The Associated Octel Company LimitedInventors: Donald Barr, Stephen L. Cook, Paul J. Richards, Maurice W. Rush
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Patent number: 5906970Abstract: A dendrimer-based cold flow additive material.Type: GrantFiled: March 20, 1997Date of Patent: May 25, 1999Assignee: Exxon Chemical Patents Inc.Inventor: Robert Dryden Tack
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Patent number: 5871554Abstract: Novel polymers comprising polyolefin-substituted amines grafted with aromatic N-containing monomers such as aniline, have been found to provide oil soluble polymers having dispersant and antioxidant properties in oleaginous compositions, including fuel and lubricating oils. The polymers of this invention are further useful in electrical applications. These materials are formed by a process which comprises: (a) contacting an amine compound having at least two reactive nitrogen moieties with at least one long chain hydrocarbon-substituted reactant in an amount and under conditions sufficient to form a N-containing polymer adduct containing reactive amine groups, and (b) contacting the N-containing polymer adduct with at least one aromatic N-containing monomer under polymerization conditions to graft said N-containing polymer adduct with aromatic N-containing polymer segments.Type: GrantFiled: January 20, 1998Date of Patent: February 16, 1999Assignee: Exxon Chemical Patents Inc.Inventors: Abhimanyu Onkar Patil, Robert Dean Lundberg, Antonio Gutierrez
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Patent number: 5856279Abstract: A process for reacting certain carboxylic reactants and at least one aldehyde or ketone with olefinic compounds then reacting the product prepared thereby with ammonia, a hydrazine or an amine, products prepared thereby and, additive concentrates, lubricating oil and fuel compositions.Type: GrantFiled: May 19, 1998Date of Patent: January 5, 1999Assignee: The Lubrizol CorporationInventor: Mark R. Baker
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Patent number: 5788722Abstract: Hydrocarbyl substituted C.sub.4 to C.sub.10 monounsaturated dicarboxylic acid, anhydrides or esters, e.g. polyisobutenyl succinic anhydride, preferably made by reacting polymer of C.sub.2 to C.sub.10 monoolefin, preferably polyisobutylene, having a molecular weight of about 700 to 1200, preferably with a C.sub.4 to C.sub.10 monounsaturated acid, anhydride or ester, preferably maleic anhydride, such that there are 1.2 to 2.0 dicarboxylic acid producing moieties per molecule of said olefin polymer used in the reaction mixture. The resulting materials may be further reacted with amines, alcohols, amino alcohols, boric acid, etc. to form dispersants.Type: GrantFiled: May 30, 1995Date of Patent: August 4, 1998Assignee: Exxon Chemical Patents IncInventors: Jack Emert, Robert Dean Lundberg
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Patent number: 5779742Abstract: A process for reacting certain carboxylic reactants and at least one aldehyde or ketone with olefinic compounds then reacting the product prepared thereby with ammonia, a hydrazine or an amine, products prepared thereby and, additive concentrates, lubricating oil and fuel compositions.Type: GrantFiled: August 8, 1996Date of Patent: July 14, 1998Assignee: The Lubrizol CorporationInventor: Mark R. Baker
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Patent number: 5755834Abstract: The invention is directed to a method of enhancing the low temperature flow properties of fuels comprising adding to the fuel a heated additive concentrate comprising: (A) at least one nitrogen-containing derivative of carboxylic acid, (B) an organic acid, and (C) at least one other flow improver, wherein the concentrate is heated to at least about 35.degree. C.Type: GrantFiled: November 21, 1996Date of Patent: May 26, 1998Assignee: Exxon Chemical Patents Inc.Inventor: John E. Chandler
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Patent number: 5725610Abstract: Additive composition enhancing the low temperature operability of average distillates beyond -20.degree. C. comprising at least 40% by weight of a composition consisting of: i) from 60 to 94% by weight of an antisedimentation additive resulting from the reaction of at least one aliphatic dicarboxylic compound and one polyamine of general formula (II) wherein R is a saturated aliphatic radical comprising from 1 to 32 carbon atoms, n is 2-4 and m is 1-4; and ii) 6-40 % by weight of a dispersing-stabilizing additive having a molecular weight varying from 15000 to 50000 resulting from the esterification reaction of a linear alcohol having from 6 to 24 atoms with an organic acid such as maleic acid and its halides, the ester obtained being polymerized with itself or a copolymerizing compound selected from aliphatic dicarboxylic compounds.Type: GrantFiled: August 13, 1996Date of Patent: March 10, 1998Assignees: Elf Antar France, Henkel Kommanditgesellschaft Auf AktienInventors: Despina Vassilakis, Robert Leger, Nathalie Cerqueda, Wolfgang Ritter, Thomas Reichert, Stephan von Tapavicza
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Patent number: 5697986Abstract: The present invention describes a method of producing biofuels by carrying out the enzymatic transesterification of fatty acid-containing materials directly in automotive fuels.Type: GrantFiled: April 12, 1996Date of Patent: December 16, 1997Assignee: The United States of America, as represented by the Secretary of AgricultureInventor: Michael J. Haas
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Patent number: 5672183Abstract: A composition having increased electrical conductivity, comprising a liquid hydrocarbon and an anti-static amount of a hydrocarbon soluble copolymer of an alkylvinyl monomer and a cationic vinyl monomer. The copolymer has an alkylvinyl monomer unit to cationic vinyl monomer unit ratio of from about 1:1 to about 10:1, and has an average molecular weight of from about 800 to about 1,000,000. Other related compositions and methods for measuring electrical conductivity of liquids are also disclosed.Type: GrantFiled: July 1, 1996Date of Patent: September 30, 1997Assignee: Petrolite CorporationInventor: John A. Schield
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Patent number: 5643859Abstract: A dispersant derivatized from a functionalized hydrocarbon and a polyamine having one primary amine and 1-10, preferably 3-8 secondary or tertiary amines; preferably where said functionalized hydrocarbon is a Koch-derived hydrocarbon.Type: GrantFiled: June 17, 1994Date of Patent: July 1, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Antonio Gutierrez, Jacob I. Emert, James P. Stokes, Warren A. Thaler, William D. Diana, Keith R. Gorda, William B. Eckstrom, David C. Dankworth, Joseph V. Cusumano
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Patent number: 5490863Abstract: Additives which improve the low-temperature properties of distillate fuels are the reaction products of (1) diols, and (2) the product of pyromellitic dianhydride and aminoalcohols and amines with long-chain hydrocarbyl groups attached.Type: GrantFiled: August 15, 1994Date of Patent: February 13, 1996Assignee: Mobil Oil CorporationInventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck
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Patent number: 5466267Abstract: Additives which improve the low-temperature properties of distillate fuels are the oligomeric/polymeric reaction products of aromatic anhydrides and epoxides (or their corresponding acid/diol equivalents), with optional termonomers.Type: GrantFiled: September 17, 1992Date of Patent: November 14, 1995Assignee: Mobil Oil CorporationInventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck, Susan W. Johnson
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Patent number: 5456730Abstract: There are disclosed middle distillate fuel oil compositions containing an additive being a copolymer of Mn 200-50,000 having a polymethylene backbone which may be O or N substituted and having nitrate, peroxide, nitrite or nitrosocarbonate side chains.Type: GrantFiled: August 27, 1993Date of Patent: October 10, 1995Assignee: Exxon Chemical Patents Inc.Inventors: Richard J. Hart, Tuncel Ibrahim, Graham Jackson
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Patent number: 5433755Abstract: Additive formulation for engine fuels incorporating at least one constituent (A) and at least one constituent (B), constituent(A) consisting of at least one composition incorporating products resulting from the reaction of at least one dicarboxylic compound(D), whose carboxylic functions are separated by at the most eight carbon atoms, with at least one polyoxyalkylene glycol or glycol mono-ether (E) of general formula (I):R.sup.1 --O--(R.sup.2 --O).sub.n --H,in which R.sup.1 represents a hydrocarbon group having 1 to 30 carbon atoms, R.sup.2 represents a divalent hydrocarbon group having 2 to 6 carbon atoms and n is a number from 1 to 60; and constituent (B) consisting of at least one detergent-dispersant product. This formulation preferably also comprises a constituent (C) chosen from within the group formed by mineral or synthetic lubricating oils and polyglycols soluble in the fuel.Type: GrantFiled: August 31, 1992Date of Patent: July 18, 1995Assignees: Institut Francais du Petrole, Elf FranceInventors: Philippe Mulard, Yvan Labruyere, Alain Forestiere, Roger Bregent
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Patent number: 5409506Abstract: Additives which improve the low-temperature properties of distillate fuels are the reaction products of (1) diaminodiols, and (2) the product of pyromellitic dianhydride and aminoalcohols and/or amines with long-chain hydrocarbyl groups attached.Type: GrantFiled: September 14, 1993Date of Patent: April 25, 1995Assignee: Mobil Oil CorporationInventors: David J. Baillargeon, Angeline B. Cardis, Dale B. Heck
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Patent number: 5360460Abstract: The present invention describes additives for fuels for use in diesel engines.Type: GrantFiled: October 30, 1992Date of Patent: November 1, 1994Assignee: The Lubrizol CorporationInventors: Edward C. Mozdzen, William B. Chamberlin, III, Barbara A. Saiter