- PROCESS TO CONVERT THE CYCLIC MONOUREA OF AN ETHYLENE AMINE COMPOUND INTO THE ETHYLENE AMINE COMPOUND
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The present invention relates to a process to convert the cyclic monourea of ethylene amine compounds (U-EA) into ethylene amine compound (EA) by performing a reactive separation step using a reaction mixture containing the cyclic monourea, wherein one cyclic monourea (U-EA) reacts with another cyclic monourea (U-EA) to transfer its urea unit thereto and the obtained ethylene amine compound (EA) without urea unit is separated from the reaction mixture.
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Page/Page column 10-12
(2019/02/25)
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- TWO-STEP PROCESS FOR CONVERTING CYCLIC ALKYLENE UREAS INTO THEIR CORRESPONDING ALKYLENE AMINES
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The invention pertains to a process for converting cyclic alkyleneureas into their corresponding alkyleneamines, comprising - in a first step converting cyclic alkyleneureas into their corresponding alkyleneamines by reacting cyclic alkyleneureas in the liquid phase with water with removal of CO2, so as to convert between 5 mole% and 95 mole% of alkyleneurea moieties in the feedstock to the corresponding amines, and - in a second step adding an inorganic base and reacting cyclic alkylene ureas remaining from the first step with the inorganic base to convert them partially or completely into their corresponding alkyleneamines. It has been found that the two-step process of the present invention makes it possible to still obtain a high conversion of cyclic alkyleneureas, while using substantially less strong inorganic base. The process according to the invention also shows a higher selectivity to amines than the prior art process.
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Page/Page column 22-24
(2019/02/25)
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- PROCESS FOR MAKING HIGHER ETHYLENE AMINES
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The invention pertains to a process to prepare ethylene amines with n ethyleneunits and n+1 amine groups wherein n is at least 4, or urea derivatives of said ethylene amines, by reacting an ethanolamine-functional compound, an amine-functional compound, and a carbon oxide delivering agent, wherein the ethanolamine-functional compound is of the formula HO-(C2H4-NH-)qH, q is at least 1, the amine-functional compound is of the formula H2N-(C2H4-NH-)rH, r is at least 1, the sum q+r is at least 4 and wherein optionally one or more of the ethanol-amine functional compound or amine-functional compound are at least partly used as their cyclic carbamate derivative, or linear or cyclic urea derivative. The process provides TEPA and higher ethylene amines in high yield and high selectivity, without having to use expensive or hazardous startingmaterials. Various urea derivatives of TEPA and PEHA are also claimed.
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Page/Page column 21; 22
(2019/01/30)
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- METHOD FOR PRODUCING POLYETHYLENE POLYAMINES
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PROBLEM TO BE SOLVED: To provide a method for producing polyethylene polyamines with high selectivity and high yield. SOLUTION: In the presence of a solid acid catalyst, ethylene amines and aziridine are reacted with each other so that an equivalent of ethylene amines is 3 equivalents or more and 30 equivalents or less relative to aziridine. SELECTED DRAWING: None COPYRIGHT: (C)2018,JPOandINPIT
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Paragraph 0051-0052; 0059
(2018/02/27)
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- PROCESS FOR MANUFACTURING CHAIN-EXTENDED HYDROXYETHYLETHYLENEAMINES, ETHYLENEAMINES, OR MIXTURES THEREOF
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The invention pertains to a process for preparing hydroxyethylethyleneamines, ethyleneamines, or mixtures thereof, and/or ethylene urea derivatives thereof comprising the step of reacting diethanolamine with an amine-functional compound comprising at least two –NH-units of which at least one is selected from the group of primary amine groups and cyclic secondary amine groups, the amine-functional compound comprising at least one –NH-CH2-CH2-NH-unit wherein one or more -NH- CH2-CH2-NH-units in the amine-functional compound may be present in the form of cyclic ethylene urea moieties, piperazine moieties, or linear ethylene urea moieties, in the presence of a carbon oxide delivering agent, wherein -the molar ratio of amine-functional compound to diethanolamine is at least 0.2:1, and -the molar ratio of carbon oxide delivering agent to –NH-CH2-CH2-NH-units in the amine-functional compound is at least 0.1:1. The invention makes it possible to obtain higher hydroxyethylethyleneamines, ethyleneamines, or mixtures thereof, and/or ethylene urea derivatives thereof from diethanolamine, which is an attractive starting material.
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Page/Page column 16; 17; 18
(2018/10/24)
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- PREPARATION METHOD OF ETHYLENEAMINE-BASED COMPOUNDS
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The present invention relates to a method for preparing ethylene amine-based compounds which allows selective preparation of ethylene amine compounds having a higher molecular weight at a high ratio while improving the overall energy efficiency. The method for preparing ethylene amine-based compounds according to the present invention comprises a first reaction step and a second reaction step in which ethylene dichloride reacts with aqueous ammonia so that the molar ratio of ethylene dichloride (EDC) to ammonia may be 1:4-1:10. In the method, ethylene dichloride is introduced in an amount corresponding to 30-70 mol% of the total feed, and the balance amount is introduced in the second reaction step.COPYRIGHT KIPO 2017
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Paragraph 0068; 0069; 0070; 0086
(2017/10/13)
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- Amination process for manufacturing amines using catalyst
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Disclosed is a process for the preparation of an amine (particularly diamines and polyamines) by reacting an alkanolamine or a polyol with ammonia in the presence of a catalyst composed of two active metals from the group of transition metals, namely nickel and chromium supported on a microporous refractory substrate, in a hydrogenated, trickle bed reactor.
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Paragraph 0044-0049
(2014/08/07)
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- METHOD FOR PRODUCING ETHYLENEAMINES
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The present invention relates to method for producing ethyleneamines that includes: reacting ethylenedichloride with ammonia water under conditions optimizing the molar ratio of ethylenedichloride to ammonia in a defined range to produce amine compounds, ammonium chloride, and water; and isolating the amine compounds, ammonium chloride, and water, respectively. The present invention provides a continuous process for producing ethyleneamines using ethylenedichloride and ammonia by efficiently controlling the composition of the ethyleneamine product in accordance with the supply and demand of ethyleneamines to optimize the distribution of ethyleneamines.
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Page/Page column 16
(2013/12/03)
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- FUNCTIONALIZED HIGHLY BRANCHED MELAMINE-POLYAMINE POLYMERS
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The present invention relates to a method for producing amphiphilic functionalized highly branched melamine-polyamine polymers by condensing melamine and optionally a melamine derivate having at least one different amine having at least two primary amino groups and optionally also with urea and/or at least one urea derivative and/or with at least one at least difunctional diisocyanate or polyisocyanate and/or at least one carbolic acid having at least two carboxyl groups or at least one derivative thereof, optionally quaternizing a portion of the amino groups of the polymer thereby obtained, reacting the polymer thus obtained with at least one compound capable of undergoing a condensation or addition reaction with amino groups, and optionally quaternizing at least part of the amino groups of the polymer obtained in the first step. The invention further relates to the amphiphilic functionalized highly branched melamine-polyamine polymers that can be obtained by the method according to the invention, and to the use thereof as surface active agents.
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- METHOD OF MANUFACTURING ETHYLENEAMINES
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The present invention provides methods of manufacturing ethyleneamines that makes use of an ethyleneamine-generating process that is coupled to a transamination process. The combination of an ethyleneamine-generating process with a transamination process improves the mix flexibility that can be obtained from the single process allowing the production of ethyleneamine compositions having an improved and more desirable product mix.
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Page/Page column 23-24
(2010/04/28)
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- METHOD FOR PRODUCING TETRAETHYLENEPENTAMINE
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The invention relates to a process for preparing tetraethylenepentamine (TEPA) by hydrogenation of diethylenetriaminediacetonitrile (DETDN) over a catalyst. If appropriate, DETDN can also be present as a constituent of an amino nitrile mixture which additionally comprises diethylenetriaminemonoacetonitrile (DETMN).
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Page/Page column 8
(2010/03/02)
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- Tetramine treatment of neurological disorders
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2,3,2 Tetramine (3,7-diazanonane-1,9-diamine) is propounded for the treatment of Parkinson's Disease and dementias characterized by mitochondrial damage in view of this compound's ability to completely neutralize the dopainine-depriving effect of MPTP in laboratory animals up to 12 hours post MPTP injection, and to retain partial protection at suboptimal tissue levels for up to 36 hours. The effect of injecting combinations of MPTP and/or reducing agents and/or xenobiotics and/or depigmenting agents on Dopamine, Norepinephrine, Serotonin and Epinephrine levels demonstrated that MPTP and MPP+ act as reducing agents that mobilize copper and calcium, and sequester iron, and that the vulnerability of dopamine to these types of neurotoxins and to xenobiotics and metals can be corrected by administration of 2,3,2 tetramine that appears to redistribute metals between diverse storage pools and free metals in cytosol and regulate receptor mediated events, among other antidotal effects analogous to those of some of the endogenous polyamines.
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- Antimony/Lewis base adducts for Sb-ion implantation and formation of antimonide films
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An antimony/Lewis base adduct of the formula SbR3.L, wherein each R is independently selected from C1 -C8 alkyl, C1 -C8 perfluoroalkyl, C1 -C8 haloalkyl, C6 -C10 aryl, C6 -C10 perfluoroaryl, C6 -C10 haloaryl, C6 -C10 cycloalkyl, substituted C6 -C10 aryl and halo; and L is a Lewis base ligand coordinating with SbR3. The adducts of the invention are useful as metal source compositions for chemical vapor deposition, assisted chemical vapor deposition (e.g., laser-assisted chemical vapor deposition, light-assisted chemical vapor deposition, plasma-assisted chemical vapor deposition and ion-assisted chemical vapor deposition), ion implantation, molecular beam epitaxy, and rapid thermal processing, to form antimony or antimony-containing films.
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- Triphendioxazine dyestuffs
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The novel triphendioxazine dyestuffs of the formula STR1 in which the substituents R, R', T1, T2, X, Y and n have the meanings given in the description are highly suitable for the dyeing and printing of cellulose-containing or amido-containing material.
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- Cascade polymer bound chelating compounds, their chelates and conjugates, processes for their production, and pharmaceutical agents containing them
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Cascade polymers, containing complex-forming ligands, optionally at least five ions of an element of atomic numbers 21-29, 39, 42, 44 or 57-83, as well as, if desired, cations of inorganic and/or organic bases, amino acids or amino acid amides, are valuable complexing compounds and complexes for diagnostics and therapy.
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- Decolorization of polyalkylene polyamines
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A process for decolorizing polyalkylene polyamines, which comprises contacting one or more polyalkylene polyamines having an average molecular weight of greater than about 200 and less than about 1000 with carbon at a temperature greater than or equal to about 100° C. and less than or equal to about 300° C. under conditions effective to reduce the color rating of the one or more polyalkylene polyamines.
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- Process for the dyeing of leather with anionic dyes and polyaminoamide resin as dyeing auxiliary
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To improve the affinity of anionic dyestuffs in the dyeing of leather materials, polycondensation products consisting of at least one amine of the formula STR1 in which the radicals have the meanings mentioned in the description with one dicarboxylic acid and, if desired, ω-aminocarboxylic acid or its lactam are highly suitable.
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- NUCLEOPHILIC CLEAVAGE AND FORMATION OF SATURATED HETEROCYCLES. IX. KINETICS OF THE AMINATION OF 1-AZIRIDINE
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1.Enlarging the aminoethyl substituent at the heteroatom of the aziridine ring results in a decrease in reactivity and an increase in substrate selectivity towards nucleophilic cleavage by amines. 2.The reactivity of amines in the nucleophilic cleavage of 1-aziridine is largely governed by the steric accessibility of the nitrogen atoms of the nucleophile.Amino groups in which the environment of the reaction site is the same have similar reactivities.
- Bobylev, V. A.,Dalin, A. R.,Borisenko, I. V.,Kamskaya, O. I.
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p. 1003 - 1007
(2007/10/02)
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- Novel light stabilizers for polymers
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Ultraviolet light stabilizers for polymers are disclosed. The stabilizers have the formula STR1
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- Preparation of esters of phosphorus acids
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Esters of phosphorus acids are prepared by an improved process whereby aromatic alcohols and phosphorus halides are reacted at specified temperatures in the presence of amine catalysts thereby providing high yields of substantially pure esters and allowing preparation of selected halogen-containing mono- and di-esters of phosphorus acids wherein halogen is directly bonded to phosphorus having substantially no side reactant contamination. The phosphorus esters are useful as intermediates in the preparation of plasticizers, oil additives and functional fluids.
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