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7226489 |
Gasoline additives for reducing the amount of internal combustion engine intake valve deposits and combustion chamber deposits
Compositions and methods are disclosed for reducing combustion chamber deposits (CCD) and/or intake valve deposits (IVD) in spark ignition internal combustion engines. A succinic acid derivative...
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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 ...
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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...
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7041738 |
Cold flow improvers for fuel oils of vegetable or animal origin
The present invention provides an additive for improving the cold flow properties of vegetable or animal fuel oil. The additive comprises
A) a copolymer of ethylene and 8–21 mol % of at least...
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6969744 |
Living and quasiliving cationic telechelic polymers quenched by N-substituted pyrrole and methods for their preparation
Disclosed is a method of preparing terminally functionalized telechelic polymers using a cationic living polymer product or a terminal tert-chloride chain end of a carbocationic quasiliving polymer...
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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 thermal...
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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...
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6596037 |
Fatty acid mixtures of improved low-temperature stability which comprise comb polymers, and their use in fuel oils
The invention relates to low-temperature-stabilized fatty acid mixtures comprising A) from 10 to 99.99% by weight of fatty acid mixtures comprising: A1) from 1 to 99% by weight of at least one...
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6328771 |
Fuel compositions containing lubricity enhancing salt compositions
A fuel composition comprising a major amount of hydrocarbon fuel and a minor lubricity improving amount of a composition made by reacting component (A) with component (B) under unit-forming...
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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...
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6261327 |
Additive concentrates for rapidly reducing octane requirement
The present invention is directed to an additive concentrate for reducing octane requirement comprising a cyclic amide alkoxylate compound of the formula I: ##STR1## wherein x is from 3 to 11; y is...
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6033446 |
Polyalkylpyrrolidines and fuel compositions containing the same
A polyalklpyroroplidine compound of the formula: ##STR1## or a fuel-soluble salt thereof; wherein R 1 is a polyalkyl group having an average molecular weight in the range of from about 500 to...
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5912189 |
Compositions containing reaction product of a cyclic compound containing both a nitrogen atom and a carbonyl group, an aldehyde or ketone, and an etheramine
The present invention is directed to a composition containing the reaction product of: (A) a cyclic compound containing a 5, 6, or 7-member ring, the ring containing at least one nitrogen and at...
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5880072 |
Wear reducing compositions and methods for their use
Compositions for reducing wear and friction of rubbing surfaces including mixtures of a cyclic amide and a monoester formed by reacting a dicarboxylic acid and a polyol in substantially equimolar...
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5560755 |
Compositions useful as additives for lubricants and liquid fuels
A composition comprising at least one compound of the general formula ##STR1## wherein each Ar is independently an aromatic group having from 4 to about 30 carbon atoms and from 0 to 3 optional...
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5516343 |
Hydrocarbon compositions containing a polyetheramide additive
The instant invention relates to a hydrocarbon composition, such as motor fuel and lubricant compositions, containing a polyetheramide as a deposit control additive, to a concentrate containing...
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5437694 |
Phosphorodithioate-derived pyrrolidinone adducts as multifunctional antiwear/antioxidant additives
Vinyl pyrrolidinone capped phosphorodithioates have been found to be effective multifunctional antiwear/antioxidant additives for fuel compositions.
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5433756 |
Chemical clean combustion promoter compositions for liquid fuels used in compression ignition engines and spark ignition engines
Catalytic clean-combustion-promoter compositions for use with finished gasoline or diesel fuels in compression ignition engines and spark ignition engines improve fuel efficiency and reduce air...
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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...
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5368615 |
High molecular weight nitrogen-containing condensates and fuels and lubricants containing same
Improved additives/detergents for lubricant and fuel compositions are obtained by condensing a hydroxyalkyl or hydroxyaryl compound with an amine compound. The condensates according to the present...
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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...
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5340488 |
Composition for cleaning an internal combustion engine
A composition is disclosed which cleans baked-on, carbonized sludges and varnish deposits from the internal surfaces of automobile, motorcycle and truck engines. The product comprises a mutually...
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5316558 |
Catalytic clean-combustion-promoter compositions for liquid hydrocarbon fuels used in internal combustion engines
Petroleum derived fuel compositions of improved efficiency for use with finished gasoline and diesel fuels in compression ignition engines and spark ignition engines include a catalytic...
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5312459 |
Additive for liquefied-gas fuels
An additive for liquefied hydrocarbon fuel contains a) 30-60 volume percent of at least one nitrogen-containing solvent, b) 30-60 volume percent of at least one nitrogen-containing dispersing...
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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...
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5186720 |
Use of products of the reaction of alkenyl-spiro-bislactones with amines as paraffin-dispersants
The use of products of the reaction of alkenyl-spirobislactones of the formula ##STR1## in which R is in each case C 8 -C 200 -alkenyl, with amines of the formula NR 1 R 2 R 3 in which R 1 ,...
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5118325 |
Aminofulvene derivatives as antiknock compounds
Certain aminofulvene derivatives are effective in improving the antiknock performance of gasoline when used in an internal combustion engine. Particularly preferred aminofulvene derivatives are...
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5028239 |
Fuel dewatering additives
A method of dehazing a contained body of petroleum distillate by removing suspended water droplets from the distillate phase, or releasing free water trapped in an emulsion settled from the...
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5024677 |
Corrosion inhibitor for alcohol and gasohol fuels
Rust of ferrous metal surfaces that are in contact with gasohol or alcohol fuels is inhibited by the addition of a corrosion inhibiting amount of the combination of (A) a substituted imidazoline...
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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:...
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4908045 |
Engine cleaning additives for diesel fuel
A composition and method for reducing particulate emissions from a diesel engine without measurably increasing NO x emissions from the diesel engine comprises: (i) burning in the diesel engine...
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4877416 |
Synergistic fuel compositions
Disclosed is a synergistic fuel composition containing a hydrocarbyl-substituted amine or polyamine and a poly(oxyalkylene) monool. These compositions provide for an unexpected decrease in those...
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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--CH 2 --OH ...
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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...
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4744801 |
Fuel oil compositions
A fuel oil composition containing a minor proportion by weight of a mixture of 20 to 40 wt % of a polyphenol, a sulphurized polyphenol or a hindered phenol and 80 to 60 wt % of a cyclic amide...
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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 R 1 (OH) x wherein R 1 is...
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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...
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4412845 |
Ethanol or gasohol fuel composition containing as inhibitor a reaction product of itaconic acid and mono-oleyl-1,3-diaminopropane
A novel fuel composition contains ethanol or gasohol plus, as a wear-inhibiting additive, a reaction product of one mole of itaconic acid and two moles of N-mono-oleyl-1,3-diaminopropane.
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4330302 |
High thermal stability liquid hydrocarbons and methods for producing them
Liquid petroleum hydrocarbon blends having improved thermal stability at temperatures of 1000° F. and higher are prepared by removing from the blends dissolved molecular oxygen and maintaining low...
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4274835 |
Method and composition for modifying burning of sulfur in coals and hydrocarbon fuels
Efficiency of internal combustion engine performance, i.e. improved mileage per gallon, and improved performance, e.g. lower exhaust temperature, is increased by the addition of carotenoids,...
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4225319 |
Adsorbent-treated cat cracked gasoline in motor fuels
A method for supressing carburetor deposit formation of motor fuels containing untreated cat cracked gasoline by blending adsorbent-treated cat cracked gasoline into the motor fuel. Up to about 50...
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4197409 |
Poly(oxyalkylene)aminocarbomates of alkylene polyamine
Fuel compositions for internal combustion engines are provided containing deposit control additives which maintain cleanliness of intake systems without contributing to combustion chamber deposits....
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4191537 |
Fuel compositions of poly(oxyalkylene) aminocarbamate
Fuel compositions for internal combustion engines are provided which contain deposit control additives which maintain cleanliness of intake systems without contributing to combustion chamber...
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4171958 |
Antistatic hydrocarbon or halohydrocarbon composition
An olefin is polymerized in a hydrocarbon diluent in a turbulent reaction zone to produce particles of polymer which are substantially insoluble in the diluent. Fouling of the reactor by adherence...
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4081456 |
Bis-lactam derivatives
Gamma-alkyl-gamma-butyrolactones having an alkyl substituent of at least 16 carbon atoms in length, preferably at least 25 carbon atoms, are formed by reacting a monoolefin with a carboxylic acid...
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4068054 |
Prevention of fouling in polymerization reactors and antistatic agents
An olefin is polymerized in a hydrocarbon diluent in a turbulent reaction zone to produce particles of polymer which are substantially insoluble in the diluent. Fouling of the reactor by adherence...
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4011057 |
Hindered phenol antioxidant composition containing an amino compound
An improved antioxidant composition comprising hindered phenol antioxidant wherein the improvement comprises, in combination with the hindered phenol, from about 1% to 10%, by total weight, of at...
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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.
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3864098 |
Fuel additives
N-hydrocarbyl-N-heterocyclic polyamines are found to display detergency in the internal combustion engine when present in fuels to the extent of 10-4,000 ppm. The nitrogenous composition is...
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3717447 |
FUEL COMPOSITIONS CONTAINING NITROGEN-HETEROCYCLIC SUBSTITUTED CARBAMATES
Compounds useful as additives in hydrocarbon fuels are prepared by reacting urea with a nitrogen-heterocyclic substituted alcohol, for example an organylimidazolinyl substituted alcohol, in the...
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