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Class 44/426 - Benzene ring bonded directly to the nitrogen


Subclass of Class 44 - Fuel and related compositions
Definition: Compositions in which the nitrogen is bonded directly to
No. of patents: 35
Last issue date: 06/22/2010


NumberTitleIssue Date
7740668Unleaded aminated aviation gasoline exhibiting control of toluene insoluble deposits
The present invention relates to an unleaded aminated aviation gasoline of high motor octane number (MON) and low toluene insoluble deposit formation containing an additive for controlling said deposits selected from the group consisting of high molecular weight hyd...
06/22/2010
7611551Method for reducing the freezing point of aminated aviation gasoline by the use of tertiaryamylphenylamine
A method is disclosed for reducing the freezing point of unleaded aminated aviation gasoline to −58° C. or lower by the addition of tert-amylphenylamine. ...
11/03/2009
6660050Method for controlling deposits in the fuel reformer of a fuel cell system
A method for controlling the deposits in the fuel vaporizer of a fuel reformer used to prepare a liquid hydrocarbon for use as a fuel in a fuel cell which comprises introducing into the fuel vaporizer a liquid hydrocarbon containing an effective deposit c...
12/09/2003
6258134High octane unleaded aviation gasolines
Novel aviation fuel compositions contain a substantially positive or synergistic combination of an alkyl tertiary butyl ether, an aromatic amine and, optionally, a manganese component. The basefuel containing the additive combination may be a wide boiling...
07/10/2001
6090170Multihydroxypolyalkenyl-substituted amine compounds and fuel composition comprising the same
The present invention relates to derivatives of polyalkenyl amine substituted with numerous hydroxy groups of the following formula (I) useful as a novel fuel detergent. ##STR1## wherein polyalkenyl denotes a branched alkyl derived from polyolefin wh...
07/18/2000
6080213Stabilized aqueous diazo solutions
A stabilized aqueous solution of a diazo compound has the formula: ##STR1## where X1 is selected from nitro and chloro, X2 is selected from nitro, chloro and hydrogen, and Y is an acid-derived anion. The solution has a pH of abo...
06/27/2000
5851241High octane unleaded aviation gasolines
Novel aviation fuel compositions contain a substantially positive or synergistic combination of an alkyl tertiary butyl ether, an aromatic amine and, optionally, a manganese component. The basefuel containing the additive combination may be a wide boiling...
12/22/1998
5827333Substituted biphenyl ethers and fuel compositions containing the same
Substituted biphenyl polyalkyl ethers having the formula: ##STR1## wherein R1 is hydrogen or hydroxyl; R2 is hydroxyl, cyano, nitro, amino, aminomethyl, N-alkylamino or N-alkylaminomethyl wherein the alkyl group contains 1 to ab...
10/27/1998
5746786Poly-1-n-alkenylamines, and fuel and lubricant compositions containing them
Fuel and lubricant compositions contain a poly-1-n-alkenylamine as an additive....
05/05/1998
5711767Stabilizers 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 degradation and gum formation in gasolines, especially unstable cok...
01/27/1998
5639718Multifunctional viscosity modifiers for lubricating oil compositions with improved dispersancy and antioxidancy derived from adducts of quinone
An oil-soluble lubricating oil and fuel additive, useful as a multifunctional viscosity modifier comprising succinimide and other amine-containing polymers reacted with a quinone or substituted quinone adducts. Suitable polymers are those containing prima...
06/17/1997
5637119Substituted aromatic polyalkyl ethers and fuel compositions containing the same
Substituted aromatic polyalkyl ethers having the formula: ##STR1## wherein R1 is a polyalkyl group having an average molecular weight of about 450 to about 5,000; A is nitro, amino, cyano, aminomethyl, N-alkylamino or N-alkylaminomethyl wh...
06/10/1997
5558685Non-metallic anti-knock fuel additive
A gasoline fuel composition comprising a major portion of gasoline and a minor portion of a mixture of dialkyl diphenylamines, effective to increase the octane number of the gasoline composition represented by the formula: ##STR1## where R and R...
09/24/1996
5536280Non-metallic anti-knock fuel additive
A gasoline fuel composition comprising a major portion of gasoline and a minor portion of a diphenylamine, effective to increase the octane number of the gasoline composition, represented by the formula: ##STR1## where R and R' are independently hydr...
07/16/1996
5470358Unleaded aviation gasoline
Aromatic amines of the formula ##STR1## where R1 is C1 -C10 alkyl or halogen and n is an integer from 0 to 3 are effective in increasing the motor octane number of aviation gasolines to 98 or greater without the prese...
11/28/1995
5468264Non-metallic anti-knock fuel additive
A gasoline fuel composition comprising a major portion of gasoline and a minor portion of one or more polyaryl amines, effective to increase the octane number of the gasoline composition, represented by the formula: ##STR1## where R1 -R
11/21/1995
5413615Polyalkyl hydroxy and amino aromatic carbamates and fuel compositions containing the same
Polyalkyl hydroxy and amino aromatic carbamates having the formula: ##STR1## or a fuel-soluble salt thereof; wherein X is hydroxy or amino; R1 and R2 are independently hydrogen, hydroxy, lower alkyl having 1 to 6 carbon atoms, lower ...
05/09/1995
5409507Fuel compositions containing poly(oxyalkylene) aromatic ethers
Fuel compositions containing a major amount of hydrocarbons boiling in the gasoline or diesel range and an effective deposit-controlling amount of a poly(oxyalkylene) aromatic ether having the formula: ##STR1## where A1 is nitro, amino, N-...
04/25/1995
5399277Fuel and lubricant additives derived from dihydroxyaromatic compounds
The present invention relates to a novel process for the production of fuel and lubricant additives useful as dispersants and multifunctional viscosity modifiers wherein a dihydroxyaromatic compound is alkylated with an olefinic polymer and then aminated ...
03/21/1995
5316558Catalytic 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 clean-combustion-promoter composition to improve fuel efficiency and ...
05/31/1994
5205840Markers for petroleum, method of tagging, and method of detection
Liquid petroleum products are tagged with a marker which is a compound or mixture of compounds having the formula: ##STR1## wherein R1 is C1 -C6 alkyl, and R2 and R3 are nothing or --O--(C1
04/27/1993
5141524Catalytic clean combustion promoter compositions for liquid fuels used in internal combustion engines
The incorporation of these catalytic clean combustion promoters compositions to liquid fuels for internal combustion engines, improve their combustion properties; thus, reducing their air polluting emissions as nitrogen oxides (NOx), carbon mon...
08/25/1992
4981495Methods 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 conjointly used with the quinoline compound....
01/01/1991
4973336Fuel additives
A composition for the improvement of hydrocarbon fuel as exhibiting a boiling range of gasoline. The composition comprises an amine, a polyaminated detergent, a phenylamine diamine inhibited aromatic monomer stabilized by a polymeric substrate, a catalyst...
11/27/1990
4867754Process and composition for stabilized distillate fuel oils
This invention relates to processes and compositions for stabilizing distillate fuel oil which comprises adding to the distillate fuel oil an effective stabilizing amount of a mixture of (a) a phosphite compound having the formula ##STR1## where...
09/19/1989
4832702Polybutyl-and polyisobutylamines, their preparation, and fuel compositions containing these
The fuel or lubricant composition proposed contains one or more polybutyl or polyisobutylamines of the general formula I ##STR1## where R1 is a polybutyl- or polyisobutyl radical derived from isobutene and up to 20% by weight of n-butene a...
05/23/1989
4632675Process for stabilization of coal liquid fractions
Coal liquid fractions to be used as fuels are stabilized against gum formation and viscosity increases during storage, permitting the fuel to be burned as is, without further expensive treatments to remove gums or gum-forming materials. Stabilization is a...
12/30/1986
4456541Antioxidant diamine
Organic material such as lubricating oil is stabilized against gradual oxidative degradation by the addition of aromatic diamines such as 3,5-diethyltoluene-2,4-diamine, 3,5-diethyltoluene-2,6-diamine, mixtures thereof, and the like....
06/26/1984
4295862Motor fuel
Liquid hydrocarbon fuel compositions are provided containing antiknock quantities of ashless antiknock agents comprising selected acetylenic amine compounds....
10/20/1981
4294587Motor fuel
Liquid hydrocarbon fuel compositions are provided containing antiknock quantities of ashless antiknock agents comprising selected N-allylic aromatic amines....
10/13/1981
4269720Amine antioxidant
Organic material such as lubricating oil is stabilized against oxidative degradation by addition of an alkyl aniline (e.g. 2,4,6-triethylaniline; 2-sec-butyl-6-ethylaniline), monoethyldiphenylamine and/or N-(2-amino-3-ethyl-଱-methylbenzylidene)-2,6-...
05/26/1981
4264336Halogenated substituted fulvenes useful as fuel antiknock additives
The octane quality of a fuel for an internal combustion engine is improved by mixing halogenated substituted fulvenes with the fuel for an internal combustion engine....
04/28/1981
4225319Adsorbent-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 percent by weight of the total composition is adsorbent-tr...
09/30/1980
4131434Catalytic composition for internal combustion engines, furnaces and boilers
A petroleum derived fuel composition of oil, diesel oil and gasoline including catalyst additive composition to improve the fuel efficiency and to reduce their air polluting effects. The composition includes aromatic and aliphatic hydrocarbon solvents wit...
12/26/1978
4039300Gasoline fuel composition and method of using
An improved composition for fueling an internal combustion engine equipped with at least one carburetor which comprises a major amount of hydrocarbons boiling in the gasoline boiling range, a minor amount of at least one detergent, and a minor amount of m...
08/02/1977
 
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