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| Number | Title | Issue Date |
| 7393978 | Method for producing ethylene-amines Process for the preparation of ethylenamines, in particular diethylenetriamine (DETA), by continuous reaction of ethylenediamine (EDA) in the presence of a heterogeneous catalyst, where the reaction is carried out in a reaction column. ... | 07/01/2008 |
| 7314958 | Phenylbenzamides This invention relates to novel phenylbenzamides of the formula (I) in which R1 represents trifluoromethyl, chlorine, bromine or iodine and R2 | 01/01/2008 |
| 7253322 | Method for producing ethyldimethylamine and triethylamine The present invention describes a process for the preparation of ethyldimethylamine and triethylamine with the following steps: (i) reaction of a mixture of diethylamine and dimethylamine with ethylene in the presence of a catalyst... | 08/07/2007 |
| 7169736 | Catalyst for hydrogenation of unsaturated hydrocarbons A catalyst is described for hydrogenation of unsaturated hydrocarbons, containing catalytically active amounts of Pd and optionally Ag in a support. The catalyst is characterized by the fact that the support represents a shaped body with a trilobal cross section, th... | 01/30/2007 |
| 7060859 | Use of a solid hydrotalcite structure incorporating fluorides for basic catalysis of Michael or Knoevenagel reactions The invention concerns the use of a solid basic catalyst comprising a hydrotalcite structure wherein part at least of the compensating anions are fluoride anions F− for producing Knoevenagel of Michael condensation reactions. The invention also concerns... | 06/13/2006 |
| 7053246 | Preparation of a symmetrical secondary amine Process for preparing a symmetrical secondary amine by reaction of a primary amine in the presence of hydrogen and a catalyst whose preparation has involved precipitation of catalytically active components onto monoclinic, tetragonal or cubic zirconium dioxide. ... | 05/30/2006 |
| 6723880 | Preparation of secondary amines from primary amines A process for producing secondary amines of the formula R1R2N—A—NH—A—NR1R2, where R1 and R2 are linear or branched C1-20-alkyl radicals, optionally substituted with from 1 to 5 phen... | 04/20/2004 |
| 6515036 | Method of decomposing a polyurethane A method of recovering a decomposition product from a polyurethane, the method comprising the steps of thermally decomposing a polyurethane into a liquid containing a polyol and a urea compound which is soluble in the polyol, and solids containing a urea ... | 02/04/2003 |
| 6365778 | Process for the preparation of N-alkypolyhydroxyalkylamines from monoalkylamine and reducing sugar Aqueous, alcoholic or aqueous-alcoholic solutions of a monoalkylamine and a reducing sugar are simultaneously injected into a mixing unit and the two solutions are mixed under turbulence in the mixing unit for 6 seconds to 5 minutes at a temperature of 25... | 04/02/2002 |
| 6281387 | Process and catalyst for synthesizing aliphatic, cyclic and aromatic alkanolamines and alkyleneamines The invention provides a process for synthesizing alkanolamines and/or alkyleneamines by reacting either an alkane, an alkene, or both with a source of oxygen and a source of nitrogen and, optionally, additional hydrogen to convert the alkane and/or alken... | 08/28/2001 |
| 6198002 | Preparation of secondary and tertiary 2-methyl-1, 5-pentanediamines A process for preparing a secondary or tertiary 2-methyl-1,5-pen-tanediamine of the formula I ##STR1## where R1 and R2 are H, C1 -C20 -alkyl, C3 -C8 -cycloalkyl, aryl, C7 -C... | 03/06/2001 |
| 6156915 | Reactive and durable anti-static agent and method of preparing the same A reactive and durable anti-static agent and the method of preparing the anti-static agent comprises: a compound with an amine group and a compound with an epoxide group added into the flask, stirred under the gradual raised temperature, reacted into an a... | 12/05/2000 |
| 6013816 | Process for the preparation of a linear formyl compound Process for the preparation of a linear ω-formyl-carboxylic acid or a corresponding linear formylnitrile compound starting from an internally unsaturated C4 -C12 carboxylic acid or a corresponding ester or nitrile by means of hydrof... | 01/11/2000 |
| 6005146 | Stabilized non-polymeric acetoacetate esters that promote adhesion to metallic and oxidized substrates The present invention provides improved adhesion promoters for latex paints. The adhesion promoters are enamines of acetoacetate esters, or substituted acetoacetate esters. The invention also provides two new compounds which are useful as adhesion promote... | 12/21/1999 |
| 5900508 | Preparation of amines from olefins over zeolites of the type PSH-3, MCM-22, SSZ-25 or mixtures thereof A process for the preparation of amines by reacting an olefin with ammonia or a primary or secondary amine at a temperature of from 200 to 350° C. and a pressure of from 100 to 300 bar in the presence of at least one zeolite having the specific structure... | 05/04/1999 |
| 5801285 | Process for the preparation of 2-methyl-2,4-diaminopentane The present invention relates to a process for preparing 2-methyl-2,4-diaminopentane by introducing acetone, ammonia and hydrogen into a two-zone reactor at a temperature of 20° to 130° C. and a pressure of 30 to 250 bar, wherein the first zone contains... | 09/01/1998 |
| 5777165 | Process for preparing amides of N-alkyl polyhydroxyalkyl amines N-alkyl polyhydroxy alkyl amines such as N-methyl glucamine having a Gardner Color of less than 1 are reacted with sources of fatty acyl groups such as methyl esters, anhydrides, and/or fatty acids that have greater than 98% transmittance at 460 nm in org... | 07/07/1998 |
| 5750790 | Reductive amination catalysts The present invention relates to improved reductive amination catalysts useful in the production of alkyleneamine compositions having lower levels of cyclic components. Although typical reductive amination catalysts contain nickel or nickel-rhenium on car... | 05/12/1998 |
| 5739397 | Process for the production of secondary amines and the amines produced by the process Secondary amines having a hydrocarbon backbone, a functionality of at least 1 and a molecular weight of at least 74 are produced by reacting a hydrocarbon containing a leaving group with a primary amine, primary diamine, primary polyamine or ammonia at a ... | 04/14/1998 |
| 5723673 | Process for preparing amides of N-alkyl polyhydroxyalkyls N-alkyl polyhydroxy alkyl amines such as N-methyl glucamine having a Gardner Color of less than 1 are reacted with sources of fatty acyl groups such as methyl esters, anhydrides, and/or fatty acids that have greater than 98% transmittance at 460 nm in org... | 03/03/1998 |
| 5696293 | Catalyst composition for producing polyether polyamine and production method of polyether polyamine by use of the catalysts composition The present invention provides a catalyst composition for producing a polyether polyamine, comprising: (a) ruthenium and (b) at least one of metals selected from the group consisting of palladium, platinum, rhodium, osmium, iridium, rhenium, technetium, molybd... | 12/09/1997 |
| 5557011 | Preparation of diamines Process for the preparation of diamines of the general formula I ##STR1## in which A denotes a C1 -C20 alkylene chain optionally mono- to penta-substituted by C1 -C4 alkyl, R1, R2 denote C | 09/17/1996 |
| 5523478 | Carbohydrate-derived surfactants and their precursors A method for the manufacture of N,N dialkylglycamine compounds of general formula R2 NR1 R3 (I) by reacting a secondary amine of general formula R2 NHR3 (II) in which R2 is a straight or br... | 06/04/1996 |
| 5475141 | Process for preparing primary amines from aldehydes Process for preparing primary amines from aldehydes by mixing an aldehyde with a diluent, where in the case of an alcohol or of water as diluent the mixing temperature is at most 5° C. to prevent the formation of the hemiacetal or the aldehyde hydrate, a... | 12/12/1995 |
| 5440049 | Process for producing enyne derivatives A compound of the formula: ##STR1## wherein R11 is hydrogen, lower alkyl, haloloweralkyl, lower alkenyl, lower alkynyl or cycloalkyl and R21 is a group selected from the group consisting of: ##STR2## wherein R3 | 08/08/1995 |
| 5364971 | Decolorization of polyethylene polyamines using ruthenium The present invention relates to a process for the reduction of the color of polyamines by reacting at elevated temperature, e.g. 120°-170° C., and pressure, e.g. 500 to 6000 psig. the colored polyamines, e.g. triethylenetetramine and tetraethylenepenta... | 11/15/1994 |
| 5362914 | Decolorization of polyethylene polyamines using cobalt/copper/chromium The present invention relates to a process for the reduction of the color of polyamines by reacting at elevated temperature, e.g. 120°-170° C., and pressure, e.g. 500 to 6000 psig. the colored polyamines, e.g. triethylenetetramine and tetraethylenepenta... | 11/08/1994 |
| 5334764 | Process for preparing N-alkyl polyhydroxy amines Amines such as methyl amine are reacted with materials such as reducing sugars in hydroxy solvents such as methanol to prepare N-alkyl polyhydroxy amines. Accordingly, glucose is reacted with methyl amine and the resulting adduct is hydrogenated to yield ... | 08/02/1994 |
| 5331102 | Method for decolorization of alkanolamines and alkyleneamines Color-containing alkanolamines or alkyleneamines, having color numbers of up to 100 PtCo or higher, can be treated with inorganic solid acidic catalysts. Inorganic support materials having bonded inorganic acid functionalities may be used as the inorganic... | 07/19/1994 |
| 5296633 | HMTA preparation of methylated tertiary amines The methylated tertiary amines are selectively prepared by reacting a primary or secondary amine, or a nitrile or aminonitrile, including an aminoalcohol, etheramine, a polyamine or fatty polyamine or amidoamine, or amidopolyamine or dinitrile, with hexam... | 03/22/1994 |
| 5284976 | Method of producing primary amines in high yields A novel process for producing hindered and unhindered primary amines represented by the formula RNH2 and R*NH2 in high yields from novel intermediates RBMe2 or R*BMe2 wherein R is an organo group, R* is a chiral... | 02/08/1994 |
| 5276195 | Process for producing dimethylorganoboranes A process for preparing a dimethylorganoborane represented by the formula R*BMe2 wherein R* is a chiral organyl group attached to the boron, B is boron and Me is methyl comprising treating a chiral boronic ester R*B(OR')2 with a meth... | 01/04/1994 |
| 5256786 | Catalytic reforming of cyclic alkyleneamines A process of reforming cyclic alkyleneamines to amine-extended cyclic alkyleneamines involving contacting a cyclic alkyleneamine or mixture of cyclic alkyleneamines in the liquid phase with a catalyst under reaction conditions. The catalyst is selected fr... | 10/26/1993 |
| 5214209 | Method of producing primary amines in high yields and novel intermediates therefor A novel process for producing hindered and unhindered primary amines represented by the formula RNH2 and R*NH2 in high yields from novel intermediates RBMe2 or R*BMe2 wherein R is an organo group, R* is a chiral... | 05/25/1993 |
| 5210310 | Optically active dimethylorganoboranes A novel process for producing hindered and unhindered primary amines represented by the formula RNH2 and R*NH2 in high yields from novel intermediates RBMe2 or R*BMe2 wherein R is an organo group, R* is a chiral... | 05/11/1993 |
| 5166442 | Catalytic reforming of alkyleneamines A process of reforming an alkyleneamine feedstock or a mixture of such feedstocks to an alkyleneamine or a mixture of alkyleneamines which is different from the feedstock or feedstock mixture. The process is catalyzed by one of the following: Group VB met... | 11/24/1992 |
| 5112995 | Preparation of substituted ethenes A potassium salt useful in the production of N-substituted-1-alkylthio-2-nitroethenamines is produced by the reaction of the dipotassium salt of nitrodithioacetic acid with certain straight chain alkylamines, thereby converting only one of the KS-groups t... | 05/12/1992 |
| 4996363 | Catalytic reforming of alkyleneamines to linearly-extended polyalkylenepolyamines A process for reforming alkyleneamines to predominantly linearly-extended polyalkylenepolyamines comprising contacting an alkyleneamine or mixture thereof with a catalyst under conditions such that a mixture of polyalkylenepolyamines enriched in linearly-... | 02/26/1991 |
| 4983736 | Amines catalysis using metallic polyphosphate condensation catalysts having a condensed structure This invention relates to a process for making amines by condensing an amino compound in the presence of a metallic polyphosphate condensation catalyst having a condensed structure. This invention also relates to an alkyleneamines producers composition ri... | 01/08/1991 |
| 4914241 | Preparation of diamines Diamines of the formula ##STR1## where R1, R2 and R3 are each hydrogen, alkyl, aryl, alkoxy, aralkyl or cycloalkyl and X is a group of the formula (CR4 R5)m ... | 04/03/1990 |
