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Class 44/391 - Nitrogen attached indirectly to the -C(=O)O- by nonionic bonding


Subclass of Class 44 - Fuel and related compositions
Definition: Compositions wherein the -C(=O)O- group is attached
No. of patents: 69
Last issue date: 10/11/2011


1    
NumberTitleIssue Date
8034131Method of inhibiting deposit formation in a jet fuel at high temperatures
A method of inhibiting deposit formation in a jet fuel at temperatures above 150° C., whilst not substantially adversely affecting the water separability of the jet fuel. The method includes the step of adding at least one copolymer, terpolymer or polymer of an est...
10/11/2011
7127959Process for assessing inhibition of petroleum corrosion
The present invention is an apparatus for simulating corrosion activity in liquid and vapor/condensate corrosion environments. The apparatus includes a container, including a lower region containing the liquid and an upper region, including a condenser, a heater for...
10/31/2006
7022653Friction modifiers for engine oil composition
A lubricating oil composition which exhibits improved fuel economy and fuel economy retention which contains a mono-, di- or triester of a tertiary hydroxyl amine and a fatty acid as a friction modifying fuel economy additive. ...
04/04/2006
6743266Fuel additive composition for improving delivery of friction modifier
A fuel additive composition for improving the delivery of friction modifier to the lubricant oil of an internal combustion engine comprising (a) a friction modifying amount of a reaction product of at least one natural or synthetic oil and at least one alkanolamine;...
06/01/2004
6589302Friction modifier for poor lubricity fuels
An additive concentrate for improving the lubricity of low sulfur fuels comprises an additive composition diluted in an aromatic solvent, said composition comprising the reaction product of a first glyceride possessing an unsaturated fatty acid content of...
07/08/2003
6458173Fuel additive and fuel composition containing the same
The invention provides the use of a poly(hydroxy-carboxylic acid)amide or -ester derivative of general formula I: ##STR1## wherein R is the residue of an amine, an aminoalcohol or a polyol linked to the or each poly(hydroxycarboxylic acid) via an amide or...
10/01/2002
6361573Fuel dispersants with enhanced lubricity
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 ...
03/26/2002
6258135Lubricity additives for fuel oil compositions
Specific substituted aromatic ester compounds are useful as lubricity additives for middle distillate fuel oils....
07/10/2001
6133209Polyolefins and their functionalized derivatives
The present invention relates to at least simply unsaturated polyolefins with a number mean molecular weight in the range of 400 to 1,500 dalton and a dispersibility of MW /MN
10/17/2000
6071318Bifunctional cold resistance additive for fuels, and fuel composition
A bifunctional anti-settling and dispersant additive for middle distillates from 150-450° C. petroleum fractions, characterized in that consists of at least one modified copolymer with a weight-average molecular weight of 500-5000 prepared as follows: in...
06/06/2000
6053955Polyether amino acid ester compounds, preparation method and use thereof
The present invention relates to polyether amino acid ester compounds, preparation method and their use as hydrocarbon fuel additives....
04/25/2000
6013115Fuel additive compositions for simultaneously reducing intake valve and combustion chamber deposits
Engine deposits are reduced by adding an effective deposit-controlling amount of esteramine to hydrocarbon fuel....
01/11/2000
5964907Fuel compositions containing esteramines
Engine deposits are reduced by adding an effective deposit-controlling amount of an esteramine to hydrocarbon fuel....
10/12/1999
5928393Fuel additive
A fuel additive which comprises a compound selected from a novel amine, oxygen-containing and nitrogen-containing compounds having selected structures. The inventive additive when blended with a gasoline serves to suppress sludge or deposits in fuel intak...
07/27/1999
5906970Additives and oleaginous compositions containing a dendrine coldflow improver additive
A dendrimer-based cold flow additive material....
05/25/1999
5891203Fuel lubricity from blends of a diethanolamine derivative and biodiesel
This invention relates to the use of blends of diethanolamine derivatives and biodiesel as an additive for improving lubricity in low sulfur fuels and to fuels and additive concentrates comprising said lubricity additives....
04/06/1999
5696067Hydroxy-group containing acylated nitrogen compounds useful as additives for lubricating oil and fuel compositions
Compositions comprising hydroxyl group containing acylated nitrogen compounds, a process for reacting certain carboxylic reactants with olefinic compounds then reacting the product prepared thereby with ammonia, a hydrazine or an amine, products prepared ...
12/09/1997
5656040Aminoaromatic ester polylactone aminocarbamates and fuel compositions containing the same
Aminoaromatic ester polylactone aminocarbamates having the formula: ##STR1## wherein R1 is an alkyl group having from 1 to about 100 carbon atoms or an aralkyl or alkaryl group having from 7 to about 100 carbon atoms; R2 is an alkyle...
08/12/1997
5628803Polyalkylphenyl and polyalkyloxycarbonylphenyl amino and nitro benzoates and fuel compositions containing the same
Compounds having the formula: ##STR1## and fuel soluble salts thereof; wherein R1 is nitro or --(CH2)x --NR4 R5, wherein R4 and R5 are independently hydrogen or lower alkyl ...
05/13/1997
5622532Polylactone aromatic esters and fuel compositions containing the same
Polylactone aromatic esters having the formula: ##STR1## wherein R1 is a hydrocarbyl group having a sufficient number of carbon atoms to render the compound soluble in hydrocarbons boiling in the gasoline or diesel fuel range; R2
04/22/1997
5597390Amine ester-containing additives and methods of making and using same
A di- or tri-ester polyether unsaturated acid amine reaction product effective as a fuel additive for reducing intake valve deposits and octane requirement increase, as well as controlling combustion chamber deposits, in gasoline engines is disclosed toge...
01/28/1997
5538521Fuel compositions containing polyalkyl and poly(oxyalkylene)aromatic esters
A fuel additive having the formula: ##STR1## wherein A1 is a thioether, a sulfoxide, a sulfone, a sulfonic acid, a sulfonamide, a nitrile, a carboxylic acid or ester, or a carboxamide; R1 and R2 are independently hydr...
07/23/1996
5492545Multifunctional additives to improve the low-temperature properties of distillate fuels and compositions thereof
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 combinations of two or more different aminoalcohols with long-chain hydrocarbyl groups a...
02/20/1996
5490863Multifunctional additives to improve the low-temperature properties of distillate fuels and compositions thereof
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....
02/13/1996
5482522Mannich condensation products of poly(oxyalkylene) hydroxyaromatic esters and fuel compositions containing the same
Mannich condensation products prepared by the condensation of a compound of the formula: ##STR1## wherein R1 is hydrogen, hydroxy, lower alkyl or lower alkoxy; R3 and R4 are independently hydrogen or lower alkyl; R
01/09/1996
5482523Mannich condensation products of poly(oxyalkylene) hydroxyaromatic ethers and fuel compositions containing the same
Mannich condensation products prepared by the condensation of a compound of the formula: ##STR1## wherein R1 is hydrogen, hydroxy, lower alkyl or lower alkoxy; R3 and R4 are independently hydrogen or lower alkyl; R
01/09/1996
5476521Branched amido-amine dispersant additives (PT-739)
The present invention is directed to a fuel additive comprising at least one adduct of (A) a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.3 (e.g., from about 1 to 4) mono- or dicarboxylic acid producing moieties ...
12/19/1995
5468263Fuel composition containing alkylphenyl poly(oxyalkylene) polyamine acid ester
The present invention relates to an alkylphenyl poly(oxyalkylene) polyamine acid ester fuel detergent effective for controlling deposit generated in an automobile engine, prepared by reacting polyamine and alkylphenyl poly(oxyalkylene) maleate derivative ...
11/21/1995
5466267Oligomeric/polymeric multifunctional additives to improve the low-temperature properties of distillate fuels
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....
11/14/1995
5441653Two-stroke cycle engine lubricant and method of using same
Two-stroke cycle engine lubricant and lubricant fuel composition comprise a composition prepared by reacting an aromatic compound of the formula ##STR1## with a carboxylic reactant R1 CO(CR2 R3)x COOR10
08/15/1995
5425789Chemical compositions and their use as fuel additives
A compound of the general formula ##STR1## where X is CONR2 or CO2- + H2 NR2 Y and Z are the same or different and selected from the group consisting of CONR2,CO2 R, OCOR, --OR, ...
06/20/1995
5409506Multifunctional fuel additives and compositions thereof
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....
04/25/1995
5284494Oligomeric/polymeric multifunctional additives to improve the low-temperature properties of distillate fuels
Additives which improve the low-temperature properties of distillate fuels are oligomeric/polymeric reaction products consisting of cross-linked anhydride and cross-linked epoxide (or their corresponding acid/diol equivalents), with optional termonomers....
02/08/1994
5284495Oligomeric/polymeric multifunctional additives to improve the low-temperature properties of distillate fuels
Additives which improve the low-temperature properties of distillate fuels are the oligomeric/polymeric reaction products of anhydrides and one or more of the following long-chain diols: aminodiols, diaminodiols, amidodiols, with optional termonomers....
02/08/1994
5284493Multifunctional additives to improve the low-temperature properties of distillate fuels and compositions containing same
The reaction products of (1) anhydrides and/or poly-acids and (2) aminoalcohols or aminoalcohols/amides with long chain hydrocarbyl groups attached improve the low-temperature properties of distillate fuel when added thereto....
02/08/1994
5281346Two-cycle engine lubricant and method of using same comprising alkali or alkaline earth metal salts of carboxylic aromatic acids
This invention relates to lubricants for two-cycle engines comprising a major amount of at least one oil of lubricating viscosity and a minor amount of at least one compound of the general formula Ay- My+ ...
01/25/1994
5271748Oligomeric/polymeric multifunctional additives to improve the low-temperature properties of distillate fuels
Additives which improve the low-temperature properties of distillate fuels are the polymeric and/or oligomeric monomers selected from ester/urethane reaction products of a combination of anhydrides and epoxides (or their corresponding acid/diol equivalent...
12/21/1993
5266084Oligomeric/polymeric multifunctional additives to improve the low-temperature properties of distillate fuels
Additives which improve the low-temperature properties of distillate fuels are the oligomeric/polymeric reaction products of one or more bicyclic or alkyl anhydrides or their diacid equivalents and one or more long-chain epoxides or their corresponding ac...
11/30/1993
5234612Process for the production of ester derivatives useful as fuels and lubricating oil additives and novel esters produced thereby
Ester derivatives useful as fuels and lubricating oil additives are prepared by the Michael addition of an alkyl acrylate to an amine to produce an intermediate ester, followed by an ester interchange with the intermediate ester to produce the final ester...
08/10/1993
5194068Ester-containing fuel for gasoline engines and diesel engines
The invention relates to a fuel for gasoline engines and diesel engines, containing small amounts of an ester of a mono- and/or poly-carboxylic acid with an alkyl alkanolamine or alkyl aminopolyalkylene glycol of the general formula I ##STR1## i...
03/16/1993
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