| Document |
Document Title |
|
JP5827469B2 |
Method of fractionating a mixture ofpolyisocyanates in the liquid phase, optionally in the presence of a suitable solvent or mixture of two or more solvents, by means of a selectively permeable membrane into a permeate stream and a reten...
|
|
JP5827248B2 |
|
|
JP5823982B2 |
|
|
JP5819478B2 |
Process for the simultaneous and continuous production of two different mixtures of predominantly 4,4'-MDI and 2,4'-MDI in a single-step suspension melt crystallisation process whereby a mixed diisocyanate feed stream [MIx] is used to pr...
|
|
JP5815517B2 |
An isocyanate is produced by reacting an amine with a stoichiometric excess of phosgene in the gas phase. This reaction is carried out at a temperature above the amine's boiling point to obtain a liquid stream containing the isocyanate a...
|
|
JP5787908B2 |
|
|
JP5771528B2 |
The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase, if appropriate in the presence of an inert medium, in which the amine and the phosgene are first mixed and ...
|
|
JP5771535B2 |
The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase, optionally in the presence of an inert medium, in which the amine is evaporated in an evaporator to give an...
|
|
JP5764336B2 |
|
|
JP5760077B2 |
A method for producing a carbonyl compound of the present invention comprises a step (X) of reacting a specific compound having a urea bond with a carbonic acid derivative having a carbonyl group (-C(=O)-) under heating at a temperature ...
|
|
JP5744619B2 |
A method for producing tolylene diisocyanate includes: mixing a first diaminotoluene containing 2,4-diaminotoluene and 2,6-diaminotoluene at a first isomer ratio and a second diaminotoluene containing 2,4-diaminotoluene and/or 2,6-diamin...
|
|
JP5746205B2 |
Process for preparing aromatic isocyanates by reacting the corresponding formamides with an oxygen-comprising gas over noble metal catalysts at temperatures of from 300 to 600° C. and a contact time of from 1 to 1000 ms, wherein: a. the...
|
|
JP5739590B1 |
In the method for producing meta-xylylene diisocyanates, monohalogenated benzenes, formaldehyde compounds, and amide compounds represented by the following general formula (1) are reacted in the presence of an acidic liquid to produce bi...
|
|
JP2015110640A |
To provide a process for preparing an isocyanate that comprises a color-imparted compound in a relatively low proportion, by phosgene treatment of amine in gaseous phase.Provided is a process for preparing isocyanate by reacting correspo...
|
|
JP5731530B2 |
A process is proposed for preparing isocyanates by thermally cleaving carbamates to obtain a carbamate cleavage gas comprising the corresponding isocyanate and the corresponding alcohol, which comprises quenching the carbamate cleavage g...
|
|
JP5728344B2 |
|
|
JP5717735B2 |
An isocyanate is produced by continuously reacting an amine with phosgene in the presence of an inert substance in the gas phase. In this process, a phosgene-containing stream and a stream containing both the amine and the inert substanc...
|
|
JP5719021B2 |
A process for producing an aldehyde compound of the invention comprising: reacting a compound represented by the following formula (a1) or (a2) with a hydrogen and a carbon monoxide in a presence of a compound containing a metal belongin...
|
|
JP5700575B2 |
In a method for producing 1,5-pentamethylenediamine, a lysine decarboxylase-expressing microorganism that is subjected to a treatment is used.
|
|
JP5700595B2 |
The present invention provides a separation method of separating (A) and (B), comprising: a step of separating at least either an active hydrogen-containing compound (A) or a compound (B) that reversibly reacts with (A) from a mixture co...
|
|
JP5699128B2 |
The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene, optionally in the presence of an inert medium, in which phosgene and amine are first mixed and converted to the isocyanate i...
|
|
JP5692964B2 |
The present invention relates to a multiple-stage process for the continuous preparation of organic, distillable polyisocyanates, preferably diisocyanates, more preferably aliphatic or cycloaliphatic diisocyanates, by reaction of the cor...
|
|
JP5686725B2 |
The continuous or quasi-continuous process for lightening organic polyisocyanates with ozone-containing gas, the treatment of the organic polyisocyanate being effected with an ozone-containing gas which furthermore comprises at least one...
|
|
JP5682622B2 |
The present invention relates to a method of producing a carbamate compound, comprising reacting a fluorine-containing carbonic diester compound represented by formula (1) and a non-aromatic diamine compound represented by formula (2) wi...
|
|
JP5671550B2 |
This invention provides a method for purifying a chlorine supply that includes a chlorine component, a bromine component, and nitrogen trichloride. The method includes the steps of introducing the chlorine supply into a vaporizer, heatin...
|
|
JP5666584B2 |
A process for preparing diisocyanates by gas-phase phosgenation starting out from a feed stream comprising the corresponding diamines and a phosgene-comprising feed stream, in which the feed streams are separately converted into the gas ...
|
|
JP5657710B2 |
An object of the present invention is to improve the stability of an ethylenically unsaturated compound having an isocyanate group in the molecule by preventing a polymerization, a multimerization reaction and a discoloration reaction of...
|
|
JP5657709B2 |
An object of the present invention is to improve the stability of an ethylenically unsaturated compound having an isocyanate group in the molecule by preventing a polymerization of the ethylenically unsaturated compound. The present inve...
|
|
JP2015501313A |
In the present invention, the first reaction stream containing amine is supplied in the liquid phase and the second reaction stream containing phosgene is supplied in the gas phase, optionally in the presence of an inert medium in the re...
|
|
JP5650777B2 |
|
|
JP2014534053A |
Embodiments of the present invention provide a mixing conduit (100) having at least a cylindrical inner surface or a cylindrical outer surface and an increased number of jet openings (102). The mixing conduit according to an embodiment o...
|
|
JP5643517B2 |
|
|
JP2014532616A |
The present invention relates to a method for producing a pale polyisocyanate by phosgenation of a mixture containing a polycyclic aromatic polyamine having an o-phenylenediamine unit incorporated through MDA and a methylene bridge. The ...
|
|
JP5628332B2 |
A process for coproducing di- and/or polyisocyanates and glycols, comprising process stages A, B, C and E for preparing glycols and process stages A, C, D, E, F and G for preparing di- and/or polyisocyanates, which comprises accomplishin...
|
|
JP5615268B2 |
Low chlorine, multi-staged method for producing cycloaliphatic diisocyanates. The invention relates to a multi-staged method for the continuous low-chlorine production of cycloaliphatic diisocyanates, comprising the synthesis of diaminod...
|
|
JP5615644B2 |
|
|
JP5612115B2 |
An object of the present invention is to provide the separation of a mixture containing plural types of reversibly reacting compounds, especially, a method for efficiently separating an isocyanate from a mixture containing the isocyanate...
|
|
JP5602422B2 |
Producing primary isocyanates comprises feeding at least one feed stream containing phosgene (P) and at least one feed stream containing primary amines (A) to the reaction chamber through a nozzle assembly, where the amines are reacted a...
|
|
JP5599130B2 |
The invention relates to a process for the production of toluene diisocyanate, in which the crude toluenediamine obtained from the hydrogenation is purified and then phosgenated. The purification step reduces the total amount of cyclic k...
|
|
JP5599129B2 |
Preparation of isocyanate by phosgenating the amine in the presence of a solvent comprise (a) preparing an amine solution and phosgene solution in the solvent; (b) mixing the amine solution and phosgene solution, and converting the solut...
|
|
JP2014524892A |
Objects of the present invention are organic polyisocyanate, especially diisocyanate, It is the multi-process method for manufacturing a fatty series or alicyclic diisocyanate continuously advantageously especially by reactions and these...
|
|
JP2014177472A |
To provide a manufacturing apparatus of an isocyanate compound capable of manufacturing, from a nitro compound and carbon monoxide, a corresponding isocyanate compound in a high efficiency under mild carbon monoxide pressure and temperat...
|
|
JP5595271B2 |
The present invention provides a flow duct type jet reactor and a process for preparing isocyanates using it. The flow duct type jet reactor situates flow ducts in inner feed pipe which form whirlpool and reinforce vortex, thereby amine ...
|
|
JP5592786B2 |
An object of the present invention is to provide a process that enables isocyanate to be produced stably over a long period of time and at high yield without encountering problems of the prior art during production of isocyanate without ...
|
|
JP5591289B2 |
An object of the present invention is to provide a process allowing long-term, stable production of isocyanates at a high yield without the various problems found in the prior art during production of isocyanates without using phosgene. ...
|
|
JP5590570B2 |
Process for the simultaneous and continuous production of two different mixtures of predominantly 4,4'-MDI and 2,4'-MDI in a single-step suspension melt crystallisation process whereby a mixed diisocyanate feed stream [MIx] is used to pr...
|
|
JP5586624B2 |
The present invention relates to a process for manufacturing isocyanates from an amine compound. The process comprises the steps of a) Providing chlorine; b) Providing carbon monoxide; c) Reacting said chlorine and said carbon monoxide f...
|
|
JP5583879B1 |
The purification method of an aldehyde compound of the present invention includes a step of neutralizing a reaction solution containing an aldehyde compound by adding water and a base compound to the reaction solution, and a step of dist...
|
|
JP2014520086A |
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...
|
|
JP5574684B2 |
Preparing aromatic isocyanates, comprises reacting aromatic primary amines with phosgene in the gas phase, above the boiling temperature of the amines, in a reactor comprising a reaction chamber which is essentially rotationally symmetri...
|
