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Matches 1 - 50 out of 855

Document Document Title
WO/2014/044699
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...  
WO/2014/009342
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...  
WO/2013/151139
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...  
WO/2013/139703
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...  
WO/2013/111353
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...  
WO/2013/108859
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.  
WO/2013/108860
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...  
WO/2013/089381
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...  
WO/2013/079514
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...  
WO/2013/079517
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...  
WO/2013/081873
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...  
WO/2013/067646
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...  
WO/2013/060836
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...  
WO/2013/060809
The invention relates to a novel method for producing polyisocyanates, which are flocculation-stable in solvents and which have isocyanurate groups, from (cyclo)aliphatic diisocyanates.  
WO/2013/057165
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...  
WO/2013/029918
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 ...  
WO/2013/008891
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....  
WO/2012/176631
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...  
WO/2012/163894
The invention provides a multistage process for continuously preparing organic polyisocyanates, preferably diisocyanates, more preferably aliphatic or cycloaliphatic diisocyanates, by reacting the corresponding organic polyamines with ca...  
WO/2012/160072
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...  
WO/2012/157366
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...  
WO/2012/153509
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 ...  
WO/2012/130788
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...  
WO/2012/121291
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...  
WO/2012/115110
[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 (...  
WO/2012/111446
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...  
WO/2012/111750
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 ...  
WO/2012/111445
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...  
WO/2012/108453
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...  
WO/2012/106588
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...  
WO/2012/106588
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...  
WO/2012/088671
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...  
WO/2012/065927
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...  
WO/2012/065995
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...  
WO/2012/066001
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...  
WO/2012/049158
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...  
WO/2012/050858
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...  
WO/2012/046734
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...  
WO/2012/040187
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...  
WO/2012/027162
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...  
WO/2012/027162
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...  
WO/2012/020028
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...  
WO/2012/005059
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...  
WO/2011/161029
Proposed is a process for preparing isocyanates by dissociating the corresponding carbamates, which is characterized in that the carbamates are dissociated in the presence of a heterogeneous Lewis-acidic catalyst.  
WO/2011/158598
The disclosed carbamate production method is provided with a urea-producing process, a carbamation process, an ammonia-separating process wherein gas is absorbed in water in the presence of carbonate salt to form water with absorbed gas ...  
WO/2011/138245
The invention relates to a method for producing isocyanates by reacting the corresponding amine with phosgene in the gas phase, wherein a thinning agent comprising between 90.0000% by mass and 99.9999% by mass of materials that are inert...  
WO/2011/130901
A jet reactor with dynamic spray nozzle comprises an inner feed pipe (2), an outer feed pipe (3), a gear box (6), a transmission shaft (1) and a transmission linking gear (4). The transmission shaft (1), the inner feed pipe (2) and the o...  
WO/2011/130907
A preparation method of isocyanate by interfacial phosgenation reaction is provided, which comprises the following steps: (a) allowing a solution stream of polyamine having the general formula (II) and a liquid stream of phosgene to flow...  
WO/2011/130032
The invention relates a process for producing isocyanates comprising the steps of a) providing an azolide and optionally a solvent, and b) adding an acid at a temperature below about 40C. The invention also relates to the isocyanate obta...  
WO/2011/125429
Disclosed is a method for producing a carbamate compound represented by formula (3), wherein a fluorine-containing carbonate diester compound represented by formula (1) and a non-aromatic diamine compound represented by formula (2) are c...  

Matches 1 - 50 out of 855