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9017429 Fuel compositions  
Use in a gas oil fuel composition, which preferably comprises a Fischer-Tropsch derived fuel, of a compound according to formula (I): wherein: R1 to R4 are each independently hydrogen or a C1-10...
8308827 Diesel fuel composition  
A diesel fuel containing a soot dispersant additive which is a grafted and derivatized low molecular weight copolymer of ethylene and at least one C3-C10 alpha monoolefin is provided. Also...
7252690 Fuel composition  
This invention is a fuel composition having a sulphur content of ≦50 ppm by weight and comprising ≧50 ppm by weight of at least one fused polycyclic aromatic compound which has at least one...
7175678 Fuel composition  
The present invention provides a polymeric a fuel composition comprising (i) a fuel; and (ii) a polymeric compound; wherein the polymeric compound comprises at least one monomer unit of Formula I...
7112230 Fuels compositions for direct injection gasoline engines  
Injector deposits in a direct injection gasoline engine are reduced by providing as fuel for the operation of said direct injection engine a fuel composition comprising a fuel-soluble compound...
7018433 Fuel comprising an emulsion between water and a liquid hydrocarbon  
A fuel of an emulsion between water and a liquid hydrocarbon. The emulsion is stabilized by adding a polymeric surfactant obtainable by reaction between: (i) a polyolefin oligomer functionalized...
6733551 Method of improving the compatibility of a fuel additive composition containing a Mannich condensation product  
A method of improving the compatibility of a fuel additive composition comprising blending together the following components: a) a Mannich condensation product of (1) a high molecular weight...
6676715 Diesel fuel stabilizer  
There is provided use of a thermal stabiliser for increasing the thermal stability of a cetane improver in a fuel composition comprising (i) a fuel, and (ii) the cetane improver wherein the...
6656237 Fuel composition with improved lubricity performance  
This invention provides a fuel composition having a sulphur content of not more than 50 ppm by weight and comprising at least 50 ppm based on the total weight of the fuel composition of at least...
6352566 Ethers of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides and fuel compositions containing the same  
Ethers of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides having the formula: or a fuel soluble salt thereof; whereinR is a polyalkyl or polyalkenyl group having an average molecular weight...
6296677 Liquid polyfunctional additives for improved fuel lubricity  
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...
6258133 Poly (oxyalkylene) pyridyl and piperidyl ethers and fuel compositions containing the same  
A poly(oxyalkylene)pyridyl or piperidyl ether having the formula: ##STR1##wherein A is a nitrogen-containing ring selected from the group consisting of 3-pyridyl, 4-pyridyl, 3-piperidyl and...
6165236 Poly(oxyalkylene) pyridyl and piperidyl esters and fuel compositions containing the same  
A poly(oxyalkylene)pyridyl or piperidyl ester having the formula: ##STR1## or a fuel-soluble salt thereof; wherein A is a nitrogen-containing ring selected from the group consisting of 3-pyridyl,...
5993497 Esters of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides and fuel compositions containing the same  
Esters of polyalkyl or polyalkenyl N hydroxyalkyl succinimides having the formula: ##STR1## or a fuel soluble salt thereof; wherein R is a polyalkyl or polyalkenyl group having an average...
5942014 Pyridyl and piperidyl esters of polyalklphenoxyalkanols and fuel compositions containing the same  
Pyridyl and piperidyl esters of polyalkylphenoxyalkanols having the formula: ##STR1## or a fuel soluble salt thereof, wherein A is selected from the group consisting of 3-pyridyl, 4-pyridyl,...
5711767 Stabilizers for the prevention of gum formation in gasoline  
The use of nitroxide compounds alone or in combination with aromatic amines, such as substituted phenylenediamines, or phenolic antioxidants provides an effective way to prevent oxidative...
5420207 Preparation of polyisobutylsuccinic anhydrides  
Polyisobutylsuccinic anhydrides having an average molar ratio of succinic anhydride groups to polyisobutyl groups of from 1.05:1 to 1.3:1 are prepared by reacting polyisobutene having an average...
5376153 Heterocyclic nitrogen compound Mannich base derivatives of amino-substituted polymers for oleaginous compositions  
The novel polymers of the present invention are prepared by reacting a heterocyclic nitrogen compound containing at least one --N(H)-- group in the ring, an aldehyde and amino-substituted polymer...
5366516 Heterocyclic compounds useful as additives for lubricant and fuel compositions  
Various heterocyclic compounds have been discovered that impart improved fuel economy and friction modification to lubricant and fuel compositions. These heterocyclic compounds of the invention...
5312460 Fuel compositions containing substantially straight chain alkylphenyl poly (oxypropylene) amino carbamates  
Disclosed is a fuel composition comprising a hydrocarbon boiling in the gasoline or diesel range and from about 30 to about 5,000 parts per million of an alkylphenyl poly(oxypropylene)...
5266185 Method of suppression of hydrogen sulfide with heterocyclic-amine aldehyde reaction products  
Hydrogen sulfide evolution in a heavy hydrocarbon (such as a residual fuel oil) derived from a heavy crude oil (such as a API 8 gravity crude) is suppressed by contacting the hydrocarbon with a...
5080690 Polymer supported 1-alkyl-N,N-dialkyl aminoalcohols and fuel compositions containing same  
Products of reaction between 1-alkyl-N,N-dialkyl ethanolamines and copolymers of maleic anhydride are new additives which are effective in lowering the cloud point of distillate fuels.
5000759 Stable middle distillate fuel-oil compositions  
A stable middle distillate fuel-oil composition which comprises (a) a major portion of a middle distillate fuel-oil; and (b) a minor amount, as storage stabilizing additive, of a N-2-pyridyl...
4981495 Methods for stabilizing gasoline mixtures  
Oxidative stability of gasoline mixtures is improved by adding to the gasoline an alkyl 1,2-dihydroquinoline compound, dimer, trimer or polymer thereof. Optionally, a hindered phenol may be...
4978366 Distillate fuels stabilized with diaminomethane and method thereof  
A distillate fuel, particularly one which has a high acid number initially or which develops a high acid number as a result of fuel degradation, stabilized with a diaminomethane of the formula:...
4941968 Method for inhibiting gum formation in liquid hydrocarbon mediums  
Gum and sediment formation in liquid hydrocarbon mediums are inhibited by adding to the medium an alkyl 1,2-dihydroquinoline compound, dimer, trimer or polymer thereof. The invention is...
4908045 Engine cleaning additives for diesel fuel  
A composition and method for reducing particulate emissions from a diesel engine without measurably increasing NOx emissions from the diesel engine comprises: (i) burning in the diesel engine in...
4892562 Diesel fuel additives and diesel fuels containing soluble platinum group metal compounds and use in diesel engines  
The invention provides diesel fuel additive compositions comprising solutions of diesel fuel-soluble platinum group metal compounds in solvents miscible in the fuel, the platinum group metal...
4891050 Gasoline additives and gasoline containing soluble platinum group metal compounds and use in internal combustion engines  
The invention provides gasoline additive compositions comprising solutions of at least one fuel-soluble platinum group metal compound in a solvent miscible in the gasoline, the platinum group...
4871374 Fuel oils stabilized with imine-enamine condensates and method thereof  
A fuel oil stabilized with an imine-enamine condensate which is the reaction product of an aldehyde having at least two carbon atoms and/or a ketone and a polyamine of the formula: ##STR1##...
4859210 Motor fuel or lubricant composition containing polybutyl or polyisobutyl derivatives  
Fuel motor compositions and lubricant compositions contain small amounts of one or more polybutyl or polyisobutyl alcohols of the formula (I) R--CH2 --OH (I)where R is a polybutyl or polyisobutyl...
4810262 Fuel compositions  
A fuel composition comprising a distillate fuel oil and a wax crystal modifier of a derivative of (1) a monocyclic compound having at least 7 ring atoms or of (2) a polycyclic compound, said...
4775389 Exhaust particulate reducing and color stabilizing additives for diesel fuels  
Diesel fuel oil of improved color stability containing a bis-nitrogen heterocyclic diester, a rare earth metal and an oxygenated compound.
4692170 Chemical compounds to be used as solid carriers for fuel additives  
Chemical compounds, having a melting point between 70° C. and 130° C. and soluble in hydrocarbons, are used as solid carriers in order to dose conveniently additives for fuels for internal...
4647293 Gasoline compositions containing hexavalent molybdenum  
An unleaded gasoline in combination with a minor amount of gasoline soluble molybdenum(VI) compound is effective in reducing elevated steady state octane requirement and suppressing octane...
4599090 Method for preparing nitrogen- and oxygen-containing compositions useful as lubricant and fuel additives  
Nitrogen- and oxygen-containing compositions prepared by reacting, in the presence of an acid catalyst, (A) at least one aliphatic hydroxy compound of the formula R1 (OH)xwherein R1 is an...
4522735 Polyphosphoramidite oligomers and stabilizer compositions thereof  
Amines are reacted with phosphorous trichloride to form N-dichlorophosphinoamines that are then reacted with a bisphenol in about equimolar amounts to provide polyphosphoramidite oligomers. The...
4447246 Diesel fuel  
An improvement in the cetane number of diesel fuels is achieved through the addition of a small, but effective, amount of a dithiocarbamate or a sulfonamide.
4435187 Fuel and lubricant compositions for octane requirement reduction  
The reduction of octane requirement in a spark-ignited, internal combustion engine is achieved by introducing, with the combustion intake charge, a fuel and/or lubricant composition containing an...
4407670 Biocidal compounds and compositions  
Biocidal compositions and methods of inhibiting biological growth employ, as the active agent, certain monocyclic and bicyclic heterocyclic compounds, some novel perse, of general formula I...
4398505 Diesel fuel composition  
N,N-disubstituted organic nitroxides are highly effective ignition improvers for diesel fuels.
4367152 Selected heteroaromatic nitrogen compounds as antioxidant/metal deactivators/electrical insulators in lubricating oils and petroleum liquid fuels  
A hydrocarbon composition such as a lubricating or specialty oil containing a selected heteroaromatic nitrogen compound as an antioxidant/metal deactivator/electrical insulator having the...
4288612 Deposit control additives  
Deposit control additives for internal combustion engines are provided which maintain cleanliness of intake systems withcut contributing to combustion chamber deposits. The additives are...
4274837 Deposit control additives and fuel compositions containing them  
Fuel compositions for internal combustion engines are provided containing deposit control additives which maintain cleanliness of intake systems without contributing to combustion chamber...
4264334 Heavy fuel-oil compositions having an improved stability under storage conditions  
Heavy fuel-oil composition of improved stability under storage conditions, comprising a petroleum residue obtained from a straight run distillation, a vacuum distillation or a viscosity reduction...
4171959 Fuel composition containing quaternary ammonium salts of succinimides  
A motor fuel composition comprising a mixture of hydrocarbons boiling in the gasoline boiling range and a quaternary ammonium salt of a succinimide represented by the formula: ##STR1## wherein R,...
4130432 Triorganotin cyanometallate compounds  
Compounds of the general formula I ##STR1## wherein M IS 4, 6 OR 8, N is 0 or 1, A is 0 or 1, B is 1, 2, 3, 4 or 5,Each of R1, r2 and R3 independently represents an alkyl group, an alkyl group...
3977987 Fuel and lubricant compositions containing novel pyrrolidinyl or piperidinyl-substituted diphenyl alkane antioxidants  
A novel antioxidant utilized in a petroleum substrate comprising mono- or di(heterocyclic nitrogen)-substituted diarylalkanes is disclosed.
3951833 Method for preserving functional fluids and liquid hydrocarbon fuels with selected 1,10-phenanthrolines  
A method for preserving certain organic fluids is provided wherein an inhibitory amount of a selected 1,10-phenanthroline is incorporated in such fluids as a biocide.
3907517 Normally liquid hydrocarbon compositions containing amidatriazales  
3-salicylamido and 3-benzosalicylamido-1,2,4-triazoles are provided which are useful in the enhancement of the resistance of olefin polymers to heavy metal-catalyzed oxidative deterioration....

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