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| Number | Title | Issue Date |
| 7678948 | Synthesis of 3-(5-nitrocyclohex-1-enyl) acrylic acid and esters thereof This application discloses provides a process for the introduction of nitro-group functionality into a compound which contains also a site of unsaturation and/or oxygen functionality by direct (one step) oxidation of an oxime functional group mediated by a molybdenu... | 03/16/2010 |
| 7470826 | Recovery of nitrating acid mixtures from nitration processes The invention relates to a process for removing and recovering nitrating acid mixtures, in particular nitric acid, sulphuric acid and oxides of nitrogen, from the nitrated crude products occurring in the nitration of nitratable aromatic compounds after the nitrating... | 12/30/2008 |
| 7399893 | Process and catalyst for synthesis of mercaptans and sulfides from alcohols A process and catalyst blend for selectively producing mercaptans and sulfides from alcohols. The alcohol is reacted with hydrogen sulfide, in the presence of a catalyst blend containing a hydrotreating catalyst and a dehydration catalyst to convert the alcohol to m... | 07/15/2008 |
| 7109378 | Monolith catalytic reactor coupled to static mixer The invention pertains to an improved apparatus comprised of a monolith catalytic reactor having an inlet and an outlet and a static mixer having an inlet and an outlet thereto with the outlet of said static mixer in communication with the inlet of said monolith cat... | 09/19/2006 |
| 6867175 | Trimethyldecenyl compounds A Compound corresponding to formula (I): wherein X is a group selected from the group consisting of —CHO, —CN, —CH═NOH, and —CH2OH, and wherein the C═C double bond assumes a Z or E configuration.... | 03/15/2005 |
| 6822128 | Flow control in a three-phase monolithic catalyst reactor A method is disclosed for maintaining a volumetric gas to liquid ratio in a segmented gas/liquid flow along a reactor of monolithic catalyst beds in series. The present invention includes the steps of: initiating the segmented gas/liquid flow at a first end of the r... | 11/23/2004 |
| 6737488 | Controlled free-radical polymerization products using new control agents A process for the production of polymers by means of pseudo-living free-radical polymerization is disclosed. The process entails (i) reacting a polymerizable vinyl monomer with nitrogen monoxide and at least one initiator to prepare a free-radical intermediate produ... | 05/18/2004 |
| 6572717 | Hydrazinium nitroformate The invention relates to crystalline hydrazinium nitroformate having a length to diameter ratio of at most 2.5 and a sensitivity to friction and shock not below 20 N and 2 J, respectively, as well as to a method for the preparation thereof.... | 06/03/2003 |
| 6488838 | Chemical reactor and method for gas phase reactant catalytic reactions The present invention is a chemical reactor and method for catalytic chemical reactions having gas phase reactants. The chemical reactor has reactor microchannels for flow of at least one reactant and at least one product, and a catalyst material wherein ... | 12/03/2002 |
| 6291702 | Azulenyl nitrone spin trapping agents, methods of making and using same The present invention relates to chromotropic nitrone spin trapping agents, methods of making these agents, compositions comprising same, and methods of their use. In particular, azulenyl nitrones of the present invention are effective agents for trapping... | 09/18/2001 |
| 6251363 | Diagnostic and therapeutic alkylenediamine compounds and process Diamine compounds useful for treating neurodegenerated diseases characterized by the lack of dopamine neurons activity or for imaging the dopamine neurons are provided. The diamine compounds or serotonin are characterized by the formula: ##STR1## l, ... | 06/26/2001 |
| 6197825 | Azulenyl nitrone spin trapping agents, methods of making and using same The present invention relates to chromotropic nitrone spin trapping agents, methods of making these agents, compositions comprising same, and methods of their use. In particular, azulenyl nitrones of the present invention are effective agents for trapping... | 03/06/2001 |
| 6194571 | HMX compositions and processes for their preparation A process for making alpha-HMX comprises the steps of: (a) combining phosphorus pentoxide and nitric acid at a temperature of about 0-25° C., forming a reaction mixture; and (b) adding a compound having the formula: ##STR1## wherein R is straight chain or bra... | 02/27/2001 |
| 6007648 | Liquid explosive composition An improved, liquid, explosive composition comprising nitromethane, a nitethane sensitizer and an energetic compound. The energetic compound is selected from the group consisting of 4,5-dihyro-3-nitroisoxazole, 1,3-dinitropropane, trans1,2-dinitrocyclopr... | 12/28/1999 |
| 6001330 | Diagnostic and therapeutic alkylenediamine compounds and process Diamine compounds useful for treating neurodegenerated diseases characterized by the lack of dopamine neurons activity or for imaging the dopamine neurons are provided. The diamine compounds or serotonin are characterized by the formula: ##STR1## ... | 12/14/1999 |
| 5998661 | Preparations of organic nitro compounds through mixed oxidizing agents A process for selective, direct oxidation of amine or amine hydrochloride mpounds is described. It uses mixed oxidizing agents of monopersulfate and ozone.... | 12/07/1999 |
| 5886242 | Polymerizable, chiral compounds and their use The invention relates to chiral compounds containing at least one divalent or polyvalent chiral group, at least one polymerizable group, at least one spacer and at least one mesogenic group, and to their use as polymerizable, chiral dopes for the preparat... | 03/23/1999 |
| 5763687 | Preparation process for aromatic mononitro compounds An improved preparation process for an aromatic mononitro compound comprising reacting an aromatic compound with mixed acid consisting of nitric acid, sulfuric acid or phosphoric acid and water, wherein these flow to react with each other in a reactor com... | 06/09/1998 |
| 5648565 | Process for the adiabatic preparation of mononitrotoluenes Mononitrotoluenes can be prepared by intensively mixing together toluene, nitric acid, sulphuric acid and water, simultaneously or successively in their total amount, and, in the case of continuous preparation, redispersing the mixture at least twice, for... | 07/15/1997 |
| 5557015 | Method of preparing hydrazine nitroform The invention relates to a method of preparing hydrazine nitroform (HNF) by dissolving nitroform of a purity of more than 98.5 wt % in a solvent and reacting it with hydrazine in the presence of a small amount of proton-transferring medium.... | 09/17/1996 |
| 5364989 | 1,1,1-trichloro-2-nitroethane production Methods for the production of 1,1,1-trihalogeno-2-nitroethanes from 1,1-dihalogenoethylene by using nitric acid or its salt and hydrogen chloride or hydrogen bromide or its salt, and for the production of -unsaturated amines from the 1,1,1-trihalog... | 11/15/1994 |
| 5124493 | Process of producing XMX in 100% yield and purity An improvement when 1,3,5,7-tetranitro-1,3,5,7-tetraazacyclooctane is preed by nitrolysis of 1,3,5,7-tetraacyl-1,3,5,7-tetraazaceyloctane with a solution of nitric acid and nitrogen pentoxide or phosphorous pentoxide. This improved process herein before ... | 06/23/1992 |
| 5120887 | Process of making pure SOLEX 1-(n)-acetyl-3,5,7-trinitrocyclotetramethylenetetramine is prepared by nilysis of 1,3,5,7-tetracyl-1,3,5,7-tetraazacyclooctane with a solution of nitric acid and nitrogen pentoxide or phosphorous pentoxide.... | 06/09/1992 |
| 5106723 | Contrast enhancement layer compositions, alkylnitrones, and use Contrast enhancement compositions are provided which can be used to make contrast enhancement layer photoresist composites. The composites can be used to make patterned photoresists under mid-UV light and utilize photobleachable alkylnitrones.... | 04/21/1992 |
| 5043488 | Process for preparing an explosive and the product therefrom A process for preparing an explosive comprising contacting a ketone with a compound capable of producing a product, or compound, containing nitro groups for a time sufficient to obtain a product having a high-energy content and the product resulting there... | 08/27/1991 |
| 5002993 | Contrast enhancement layer compositions, alkylnitrones, and use Contrast enhancement compositions are provided which can be used to make contrast enhancement layer photoresist composites. The composites can be used to make patterned photoresists under mid-UV light and utilize photobleachable alkylnitrones.... | 03/26/1991 |
| 5001285 | Process for the bromination of nitro-alcohols A process for the preparation of geminate bromo-nitro-alcohols by the bromination of alkali metal or alkaline-earth metal salts of nitroalcohols in aqueous solution, while cooling the reaction mixture so that the maximum reaction temperature does not exce... | 03/19/1991 |
| 4973429 | Organic materials with non-linear optical properties A material in the form of a film is described which contains, in an orientated arrangement which does not display point symmetry, compounds of formula I ##STR1## wherein X is .dbd.CH-- or .dbd.N--, R1 is C12 -C30 -alk... | 11/27/1990 |
| 4861925 | Process for the preparation of nitroolefins A process for the preparation of nitroolefins which comprises heating a solution of a nitroalcohol of the formula: ##STR1## to at least 125° C. to give a corresponding nitroolefin which is contacted in situ with nucleophilic addition reagent.... | 08/29/1989 |
| 4820881 | Decolorization A process to decolorize and stabilize nitro compounds by contacting the nitro compound with an alkaline earth metal hypochlorite particulate material.... | 04/11/1989 |
| 4734516 | Process for the preparation of partially halogenated 1-propanols The reaction of a zinc compound compound of formula III wherein y is 1 or 2 and L is a solvent ligand selected from the group consisting of the N-disubstituted acid amides, N-substituted lactams and organic sulfoxides, with an aldehyde of formula II wherein R ... | 03/29/1988 |
| 4709107 | Process for producing nitrones A method for preparing nitrones from mixtures of arylhydroxylamines and alkylhydroxylamines containing zinc oxide solids is provided which does not require filtration of the mixture prior to reaction. This is accomplished by introducing a dilute acid solu... | 11/24/1987 |
| 4695405 | Process for quenching fluorescence, and new cationic or amphoteric aromatic nitro compounds To quench the fluorescence produced by anionic fluorescent brighteners use is made of virtually colorless, water-soluble cationic or amphoteric compounds which contain in the molecule at least one ammonium group, at least two aryl, arylene, hetaryl and/or... | 09/22/1987 |
| 4518812 | Process for the preparation of fluorinated nitroalkanes In the conjugated nitrofluorination of an olefin by reacting an olefin of the formula ##STR1## in which R1, R2, R3 and R4 each independently is hydrogen, fluorine, chlorine, bromine, alkyl, halogenoalkyl or... | 05/21/1985 |
| 4496783 | Nitration of organic compounds and organic nitrogen compounds produced Nitration of organic compounds and organic nitrogen compounds produced. Organic nitrogen compounds are formed in the vapor phase by organic radical formation by reaction of an organic compound with hydroxyl radicals derived from the reaction between hydrogen p... | 01/29/1985 |
| 4487988 | Nitration of organic compounds Organic nitrogen compounds are formed in the vapor phase by organic radical formation by reaction of an organic compound, suitably an alkane, with hydroxyl radicals derived from the reaction between hydrogen peroxide and nitrogen dioxide and the nitration... | 12/11/1984 |
| 4328168 | Process for the preparation of vinylcyclopropane derivatives This invention provides a convenient and commercially adaptable process for the preparation of vinylcyclopropane derivatives in high yield. For the process an alkylating agent and activated methylene compound are reacted in the presence of a cyclic polyet... | 05/04/1982 |
| 4252739 | Process for the preparation of vinylcyclopropane derivatives This invention provides a convenient and commercially adaptable process for the preparation of vinylcyclopropane derivatives in high yields. The process involves reacting an alkylating agent and an activated methylene compound in the presence of an onium ... | 02/24/1981 |
| 4241229 | Recovery of nitrated aromatic compounds from nitration wash liquors The wash liquor resulting from the nitration of aromatic compounds is contacted with a quantity of the same aromatic compound being nitrated and the resultant solution is recycled to the nitration process.... | 12/23/1980 |
| 3976704 | Nitration process This invention relates to a process for the nitration of organic compounds, especially aromatic compounds, which comprises contacting said compound with a nitrating agent at conditions whereby a nitrated product is formed. The nitration agent and the comp... | 08/24/1976 |
