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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 8137419 | Odorant mixture for odorless gas fuel The invention concerns a composition for use in particular as odorant of a gas fuel, more particularly of natural gas, comprising: 0.1 to 49.9 particles by weight of at least one alkyl sulphur (I) of formula: R1—S—R2, wherein R1 ... | 03/20/2012 |
| 7335238 | Method for producing ferrous picrate The present invention relates to the manufacture of ferrous picrate and the preparation of fuel additives containing ferrous picrate. A process for producing ferrous picrate includes dissolving picric acid in a mixture of an aromatic hydrocarbon and an aliphatic alc... | 02/26/2008 |
| 7241375 | Heavy hydrocarbon composition with utility as a heavy lubricant base stock A heavy hydrocarbon composition with utility as a heavy hydrocarbon base stock comprising at least 95 wt % paraffin molecules, of which at least 90 wt % are isoparaffin, containing hydrocarbon molecules having consecutive numbers of carbon atoms, is a liquid at 100Â... | 07/10/2007 |
| 7208078 | Diesel fuel formulation for reduced emissions The invention is directed to a method and formula for producing a fuel having reduced particulate emissions from an internal combustion engine. The fuel taught herein is characterized as having a cetane number ranging from about 45 to about 65, a T95 dist... | 04/24/2007 |
| 7201838 | Oxygenate treatment of dewaxing catalyst for greater yield of dewaxed product Fischer-Tropsch hydrocarbon synthesis using a cobalt catalyst is used to produce waxy fuel and lubricant oil hydrocarbons from synthesis gas derived from natural gas. The waxy hydrocarbons are hydrodewaxed, with reduced conversion to lower boiling hydrocarbons, by c... | 04/10/2007 |
| 7131402 | Method for controlling exhaust emissions from direct injection homogeneous charge compression ignition engines A method is disclosed for controlling exhaust emissions from direct injected homogeneous charge compression ignition engines by combusting therein a fuel having a cetane number equal to or less than 50, and aromatic content equal to or greater than 15 wt %. ... | 11/07/2006 |
| 7132042 | Production of fuels and lube oils from fischer-tropsch wax Dewaxed fuel and lubricant base stocks are made by (a) producing a synthesis gas from natural gas, (b) reacting the H2 and CO in the gas in the presence of a cobalt Fischer-Tropsch catalyst, at reaction conditions effective to synthesize a waxy hydrocarbo... | 11/07/2006 |
| 7118605 | Fuel conditioning process The present invention relates to a fuel conditioning process for internal combustion engines of motor vehicles. According to the present invention, on board a motor vehicle at a temperature of from 20° C. to 150° C. and at atmospheric pressure, nitrous gases essen... | 10/10/2006 |
| 7018524 | Reformulated diesel fuel Reformulated diesel fuels for automotive diesel engines which meet the requirements of ASTM 975-02 and provide significantly reduced emissions of nitrogen oxides (NOx) and particulate matter (PM) relative to commercially available diesel fuels. ... | 03/28/2006 |
| 6969773 | Fuel additive containing ferrous picrate produced by a process utilizing wire A fuel additive containing ferrous picrate produced by a process involving placing wire composed of an alloy of iron in any solution of picric acid in a solvent that is known in the art for reacting with iron to produce ferrous picrate. The wire can be suspended in ... | 11/29/2005 |
| 6660050 | Method 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 |
| 6319294 | Fuel additive formulation and method of using same An improved fuel additive formulation, method of use, and method of producing the fuel formulation are described. The improved fuel additive of the present invention comprises a mixture of nitroparaffins (comprising nitromethane, nitroethane, and nitropro... | 11/20/2001 |
| 6117197 | Fuel compositions containing aromatic esters of polyalkylphenoxy alkanols, poly(oxyalkylene) amines and di- or tri-carboxylic acid esters A fuel composition comprising a major amount of hydrocarbons boiling in the gasoline or diesel range and a fuel additive composition comprising (a) about 15 to 2,000 parts per million by weight of an aromatic ester of a polyalkylphenoxyalkanol, (b) about ... | 09/12/2000 |
| 6080213 | Stabilized 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 |
| 6004361 | Low emissions diesel fuel A low emission diesel fuel suitable for use in underground diesel-engined mining equipment comprises a straight run distillate fuel having an end point not greater than 300° C. (about 660° F.), a cetane number in the range of 55 to 60 a specific gravity... | 12/21/1999 |
| 5980594 | Use of reaction products of polyolefins and oxides of nitrogen or mixtures of oxides of nitrogen and oxygen as additives for fuels Reaction products of polymers of C2 -C6 -olefins having an average degree of polymerization P of from 5 to 100 and oxides of nitrogen or mixtures of oxides of nitrogen and oxygen are used as additives for fuels, in particular for fue... | 11/09/1999 |
| 5976201 | Low emissions diesel fuel A low emission diesel fuel suitable for use in underground diesel-engined mining equipment comprises a straight run distillate fuel having an end point not greater than 300° C. (about 660° F.), a cetane number in the range of 55 to 60 a specific gravity... | 11/02/1999 |
| 5879420 | Reaction products of polyisobutenes and oxides of nitrogen or mixtures of oxides of nitrogen and oxygen and their use as fuel and lubricant additives Reaction products of polyisobutenes having an average degree of polymerization P of from 10 to 100 and a content E of from 60 to 90% of double bonds which can react with maleic anhydride, E=100% corresponding to the theoretical value for the case where ea... | 03/09/1999 |
| 5849048 | Substituted biphenyl poly (oxyalkylene) ethers and fuel compositions containing the same Substituted biphenyl poly(oxyalkylene) 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... | 12/15/1998 |
| 5827333 | Substituted 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 |
| 5782937 | Gasoline compositions containing ignition improvers The present invention relates to fuel compositions containing hydrocarbon fuels in the gasoline boiling range and organic nitrogen-containing compounds selected from organic nitrates and/or organic nitro compounds. The fuel compositions exhibit improved i... | 07/21/1998 |
| 5709720 | Aromatic ethers of polyalkylphenoxyalkanols and fuel compositions containing the same Aromatic ethers of polyalkylphenoxyalkanols having the formula: ##STR1## or a fuel soluble salt thereof, wherein R is hydroxy, nitro or --(CH2)x -NR5 R6, wherein R5 and R6 are independ... | 01/20/1998 |
| 5667539 | Oleaginous compositions Compounds of the formula I below are useful as additives in oleaginous compositions: ##STR1## wherein B represents an aromatic system, A represents a hydrocarbyl group, R1 and R2 are the same or are different and each independen... | 09/16/1997 |
| 5637119 | Substituted 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 |
| 5578091 | Chemical compositions and their use as fuel additives Compounds of general formula (I) wherein X and Y are the same or different and are selected from the group consisting of SO3 (--), --CO--, --C(O)O(--), --R4 --C(O)O--, --NR3 C(O)--, --R4 O--, --R4 --C... | 11/26/1996 |
| 5409507 | Fuel 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 |
| 5087268 | Processes for producing a ferrous picrate fuel additive A process for producing an additive for hydrocarbon fuels by combining picric acid, powdered iron, an activating acid, and a liquid organic solvent. Alternatively, the powdered iron can first be washed with the activating acid and the rinsed with water or... | 02/11/1992 |
| 4828574 | Process for producing an additive for lubricants, as well as for aqueous heating medium and fuel systems, as well as the special use possibilities thereof A process for producing an additive for lubricants and for aqueous fuel mixtures and heating media is described, in which an alkaline aqueous solution of an inverted cane sugar as the main component and containing a hydrocarbon and an alcohol is heated an... | 05/09/1989 |
| 4705534 | Cetane number of diesel fuel by incorporating polynitrate esters and stabilizers Mixtures of polynitrate esters and selected amines are effective in improving the cetane number of diesel and alcohol fuels.... | 11/10/1987 |
| 4668245 | Fuel additive for use in alcohol fuels The present invention provides a method for inhibiting corrosion and elastomer swelling and degradation caused by alcohol and alcohol-containing fuels and for increasing lubricity of alcohol or alcohol-containing fuels, comprising the step of adding to al... | 05/26/1987 |
| 4549884 | Diesel oil containing monoalkoxylated nonyl phenol characterized by decrease in visible smoke in exhaust gases Decrease in visible smoke in exhaust gases is achieved by operating diesel engines with fuel containing monoalkoxylated nonyl phenol.... | 10/29/1985 |
| 4435185 | Furnace fuel A significant improvement in the combustion properties of liquid hydrocarbon furnace fuel, perceived as a marked reduction in the rate and quantity of tarry, cokelike deposits formed on combustion of the fuel in conventional burner equipment, is obtained ... | 03/06/1984 |
| 4425138 | Two-cycle fuel compositions containing amino phenols Lubricating oils containing at least one amino phenol of the general formula ##STR1## wherein R is a substantially saturated, hydrocarbon-based group of at least about 10 aliphatic carbon atoms, a, b and c are, for example, each 1, 2 or 3, and A... | 01/10/1984 |
| 4424063 | High flash point additives or compositions for gasoline and diesel fuels An improved energy-saving fuel additive for diesel engines and gasoline engines which comprises separate compositions which raise the flash point from about 6° to 29° C. In the case of the diesel additive, the following formulation is preferred: Element... | 01/03/1984 |
| 4397654 | Copper catalyst for fuels This invention pertains to an improved energy-saving fuel additive for jet engines, gasoline and diesel engines, including additions to domestic heating and light industrial oils (#2 and #3) and residual or bunker fuel (#4, #5, and #6), which comprises as... | 08/09/1983 |
| 4370147 | Fuel for compression ignition engines Fuel consumption in compression ignition engines is significantly reduced by the addition to fuel for operating said engines of from about 1.0×10-6 to about 1.0×10-3 parts by weight of at least one isomer of dinitrotoluene. Optiona... | 01/25/1983 |
| 4347148 | Full and lubricant compositions containing nitro phenols Nitro phenols of the general formula ##STR1## wherein R is an aliphatic substituent of at least about 40 carbon atoms, a, b and c are, for example, each 1, 2 or 3, and Ar is an aromatic moiety such as a benzene nucleus, naphthalene nucleus or linked ... | 08/31/1982 |
| 4320021 | Amino phenols useful as additives for fuels and lubricants Amino phenols of the general formula ##STR1## wherein R is a substantially saturated, hydrocarbon-based group of at least about 30 aliphatic carbon atoms, a, b and c are, for example, each 1, 2 or 3, and Ar is an aromatic moiety such as a benzene nuc... | 03/16/1982 |
| 4320020 | Alkyl amino phenols and fuels and lubricants containing same Amino phenols of the general formula ##STR1## wherein R is a substantially saturated hydrocarbyl substituent having an average of from about 30 to about 750 aliphatic carbon atoms; R' is a substituent selected from the group consisting of lower alkyl... | 03/16/1982 |
| 4265639 | Combustion catalysts The present invention relates to a stabilized, combustion promoting fuel additive containing an iron (II) chelate and a picric acid/organic base complex. The invention further relates to stock solutions containing this additive, methods for producing the ... | 05/05/1981 |
