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WO/2014/163017A1 |
This method for producing xylylene diisocyanate is provided with: a pyrolytic decomposition step for pyrolytically decomposing xylylene dicarbamate; a first separation step for separating, from the pyrolytic decomposition product obtaine...
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WO/2014/157636A1 |
A method for producing isocyanate, said method comprising: a carbamation step for producing an N-substituted carbamate by a carbamation reaction using an organic primary amine, urea and an organic hydroxy compound, and then collecting fi...
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WO/2014/122180A1 |
The invention relates to a method for separating an isocyanate, which was produced by reacting a primary amine with an excess of phosgene in the gas phase, from the gaseous raw product obtained in the reaction, wherein (i) the gaseous ra...
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WO/2014/091011A1 |
The invention provides a method of a toluenediamine (TDA) phosgenation in a gaseous phase in a reactor of a specific design. The method, which, due to suitable mixing of reagents allows to obtain high selectivity of the course of the TDA...
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WO/2014/082910A1 |
The invention relates to a method, preferably a multistage method, for continuously producing organic polyisocyanates, preferably diisocyanates, particularly preferably aromatic, aliphatic, or cycloaliphatic diisocyanates, by reacting th...
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WO/2014/073672A1 |
This method for producing an aldehyde compound comprises a step for reacting a compound represented by general formula (a1) or general formula (a2) with hydrogen and carbon monoxide in the presence of a phosphorus compound and a metal co...
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WO/2014/073664A1 |
This method for producing an aldehyde compound comprises a step for reacting a compound represented by general formula (a1) with hydrogen and carbon monoxide in the presence of a phosphorus compound and a metal compound that contains 0.0...
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WO/2014/073663A1 |
This method for purifying an aldehyde compound comprises: a step for neutralizing a reaction solution, which contains an aldehyde compound that is obtained by reacting a compound represented by general formula (a1) or (a2) with hydrogen ...
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WO/2014/069605A1 |
The present invention relates to a polyisocyanate composition which comprises, based on the total mass of the polyisocyanate composition: 97 weight% or more of a polyisocyanate; 2.0 mass ppm to 1.0×104 mass ppm of a compound which is di...
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WO/2014/064128A1 |
The present invention relates to a method for producing isocyanates by reacting amines with phosgene in liquid phase, involving the following method steps: (a) mixing a liquid amine-containing reactant flow (1) and a liquid phosgene-cont...
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WO/2014/059516A1 |
A process for preparing an acrylamide-based crosslinking monomer comprising reacting in the presence of a catalyst an isocyanate compound containing at least two isocyanate groups with one of acrylic acid or methacrylic acid. These acryl...
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WO/2014/044699A1 |
The invention relates to a method for producing organic diisocyanates by reacting the corresponding diamines with phosgene in inert solvents. High-melting diamines from the series of 1,5-naphthalenediamine, tetralindiamine, 1,4-phenylene...
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WO/2014/009342A1 |
The present invention relates to a method for working up distillation residues from isocyanate production in which monomeric isocyanate present in distillation residues is recovered by means of a spray-dry method and the overall yield of...
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WO/2013/151139A1 |
L-lysine and/or a salt thereof is subjected to lysine decarboxylation by lysine decarboxylase and/or mutant lysine decarboxylase in a reaction system in which the time that the dissolved oxygen concentration is the saturated dissolved ox...
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WO/2013/139703A1 |
The invention relates to a method for producing isocyanates by phosgenating the corresponding amines, wherein low-boiling secondary components, excessive phosgene, and the coupling product hydrogen chloride are separated from the crude l...
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WO/2013/111353A1 |
The present invention provides a method for separating an active hydrogen-containing compound (A) and a compound (B) that reversibly reacts with the compound (A) from each other, which comprises: a step of separating the compound (A) and...
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WO/2013/108860A1 |
In the present invention, 1,5-pentamethylendiamine is produced by using lysine decarboxylase and/or a mutant lysine decarboxylase to cause a lysine decarboxylation reaction in L-lysine or a salt thereof in the presence of a substance tha...
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WO/2013/108859A1 |
In the present invention, mutant lysine decarboxylase is obtained by replacing at least one of the amino acids in the amino acid sequence indicated by SEQ ID NO: 4 of the Sequence Listing with another amino acid.
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WO/2013/089381A1 |
The present invention provides a method for preparing aliphatic diisocyanate at high yield while significantly preventing the production of by-products having high boiling points by pyrolyzing aliphatic dicarbamate in a liquid phase usin...
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WO/2013/079517A1 |
Proposed is a method for producing isocyanates by means of phosgenation of the respective amines in a fluidised bed reactor (R), characterised in that a gas flow (1) containing the phosgene is used as a swirl gas and keeps an inert solid...
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WO/2013/079514A1 |
The present invention relates to sulphur-free transition metal-isocyanate-based ionic liquids, a method for the production thereof and the usage thereof. The sulphur-free transition metal-isocyanate-based ionic liquids have the general f...
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WO/2013/081873A1 |
The present invention includes a process and apparatus for the production of methylene diphenyl diisocyanate (MDI) isomer mixtures with a low 2,2'-MDI isomer content and a high 2,4'-MDI isomer content. The resulting mixtures have an incr...
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WO/2013/067646A1 |
The present application provides processes and intermediates useful in the production of β- aminocarbonyl- or β-aminothiocarbonyl-containing compounds. Provided herein is a process for synthesizing β-aminocarbonyl- or β-aminothiocarb...
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WO/2013/060836A1 |
The invention relates to a method for producing isocyanates and/or polyisocyanates by reacting the corresponding amines with phosgene, optionally in the presence of an inert medium, in a reactor (1), wherein a first reactant stream conta...
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WO/2013/057165A1 |
The invention relates to a method for producing light-coloured polyisocyanates by phosgenation of mixtures containing MDA and multinuclear aromatic polyamines that have ο-phenylenediamine units incorporated via methylene bridges. The in...
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WO/2013/029918A1 |
Process for preparing isocyanates by reacting the corresponding amines comprised in at least one feed stream A with phosgene comprised in at least one feed stream P in a reactor plant comprising at least one mixing zone and at least one ...
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WO/2013/008891A1 |
Provided is a method for producing an isocyanate compound from an amine compound and a carbonate compound directly or continuously without requiring the isolation/purification of a carbamate compound that is generated as an intermediate....
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WO/2012/176631A1 |
The present invention relates to a method for producing an isocyanate compound containing an ethylenically unsaturated group, characterized by comprising: (i) a step of subjecting a tri-substituted urea compound represented by general fo...
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WO/2012/160072A1 |
The present invention relates to a process for preparing polyisocyanates from natural raw material sources by starting from a biomass material and preparing a composition which comprises low molecular mass aromatics that contain per mole...
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WO/2012/157366A1 |
A method for manufacturing tolylene diisocyanate comprises a mixing step, a carbamate manufacturing step, and a pyrolysis step. In the mixing step, a first diaminotoluene containing 2,4- and 2,6-diaminotoluene in a first isomeric ratio i...
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WO/2012/153509A1 |
This aldehyde compound production method is characterized by including a step of synthesizing an aldehyde compound by reacting a compound represented by general formula (a1) or (a2) with hydrogen and carbon monoxide in the presence of a ...
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WO/2012/130788A1 |
The invention relates to a method for producing isocyanates by phosgenating the corresponding amines in the gas phase, characterized in that a reaction mixture containing phosgene from the gas-phase synthesis of carbon monoxide and chlor...
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WO/2012/121291A1 |
This pentamethylene diisocyanate is obtained by phosgenation of a pentamethylene diamine or salt thereof obtained by a biochemical process, and the total content therein of compounds represented by general formula (1) and compounds repre...
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WO/2012/115110A1 |
[Problem] To provide a process for efficiently producing carbonyl compounds, particularly, a process for efficiently producing N-substituted carbamic acid esters. [Solution] This process for producing carbonyl compounds includes a step (...
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WO/2012/111750A1 |
The present invention relates to a catalyst for isocyanate compound production wherein an alkali metal compound and/or an alkaline earth metal compound is supported upon a carrier, and to a method for producing the catalyst. The present ...
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WO/2012/111445A1 |
The purpose of the present invention is to improve the stability of an ethylene-based unsaturated compound having an isocyanate group in the molecule by preventing the polymerization of the ethylene-based unsaturated compound. The presen...
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WO/2012/111446A1 |
The purpose of the present invention is to improve the stability of an ethylene-based unsaturated compound having an isocyanate group in the molecule by preventing the polymerization of the ethylene-based unsaturated compound and a polym...
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WO/2012/108453A1 |
The present invention prevents the obstruction of a reactor tube in the production of an isocyanate compound. The present invention also produces an isocyanate compound at a high reaction rate in a high yield merely by pyrolysis. This pr...
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WO/2012/106588A2 |
The present invention encompasses the finding that improvements can be achieved in manufacture of isocyanates through the use of a substitute for or a precursor of phosgene. Methods and compositions utilized in accordance with the presen...
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WO/2012/088671A1 |
A fast mixing reactor comprises: a first feed channel casing (1), a reactor casing (4), a second feed channel (17), a hollow impeller type material distributor (6), a rotation shaft (10) and a first feed distributor (3). The first feed c...
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WO/2012/065995A1 |
The invention relates to a process for purifying mixtures comprising 4,4'-methylene diphenyl diisocyanate, comprising the distillative purification of a mixture I comprising 4,4'-methylene diphenyl diisocyanate having a content of hydrol...
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WO/2012/065927A1 |
The invention relates to a process for preparing methylene diphenyl diisocyanate, comprising (a) the phosgenation of di- and/or polycyclic methylene diphenyl diamine, (b) the separation of the crude methylene diphenyl diisocyanate obtain...
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WO/2012/066001A1 |
The invention relates to a process for purifying mixtures comprising 4,4'-methylene diphenyl diisocyanate, comprising the distillative purification of a mixture I comprising 4,4'-methylene diphenyl diisocyanate by means of a column K1, w...
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WO/2012/049158A1 |
The invention relates to a method for producing isocyanates by reacting the corresponding amines with phosgene, comprising the following steps: (a) providing at least one amine-containing reactant flow and at least one phosgene-containin...
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WO/2012/050858A1 |
Embodiments of the present invention relate to a mixing apparatus. Particularly, embodiments of the present invention provide a mixing apparatus for mixing fluid components such as phosgene and amine during a highly reactive chemical rea...
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WO/2012/046734A1 |
The purpose of the present invention is to provide: a method for separation of a mixture that contains a plurality of compounds that reversibly react with each other, in particular a method for efficiently separating an isocyanate from a...
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WO/2012/040187A1 |
The present invention a process and apparatus for the production of methylene diphenyl diisocyanate (MDI) isomer mixtures with a low 2,2'-MDI isomer content and a high 2,4'-MDI isomer content. The resulting mixtures have an increased rea...
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WO/2012/027162A2 |
The present invention relates to an improved composition comprising a blend of diisocyanates of Formula (II) derived from their corresponding dianiino alkyl esters obtained from soy protein source, wherein R is an alky! and n is 1-4, and...
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WO/2012/020028A1 |
The invention relates to a method for producing urethanes or ureas or mixtures of urethanes and ureas by oxidative carbonylation of organic amines in the presence of carbon monoxide, oxygen and a catalyst, where the catalyst used is a tr...
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WO/2012/005059A1 |
A method of producing toluene dicarbamate is provided with: a carbamate production step in which toluenediamine, urea and/or an N-unsubstituted carbamic acid ester, and an alcohol are reacted to produce toluene dicarbamate; and a benzoyl...
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