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WO/2009/139062A1 |
A process for producing an isocyanate without using phosgene. The process has none of various problems encountered in prior art techniques and enables an isocyanate to be stably produced in high yield for long. The process is for produci...
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WO/2009/066616A9 |
The object is to provide a method for producing an isocyanate (which is an industrially useful compound) without using phosgene, and also provide a chemical recycle method for a polycarbonate resin waste. Disclosed is a method which enab...
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WO/2009/139061A1 |
This invention provides a production process which, in producing an isocyanate without using phosgene, is free from various problems as seen in the prior art and can stably produce the isocyanate at a high yield for a long period of time...
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WO/2009/131546A1 |
The invention relates to a polyisocyanurate comprising isocyanurate rings linked by linker groups coupled to the nitrogen atoms of said rings. The polyisocyanurate may be microporous or mesoporous or both microporous and mesoporous.
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WO/2009/121881A1 |
The continuous or semi-continuous method of brightening organic polyisocyanates with ozone-containing gas, wherein treatment of the organic polyisocyanate is done using an ozone-containing gas that further comprises at least one other in...
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WO/2009/107655A1 |
Disclosed is a method for producing a polyisocyanate, which comprises a contact step wherein a reaction liquid obtained by reacting a polyamine with phosgene is brought into contact with a zeolite at 60-230˚C, and a heating step wherein...
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WO/2009/068920A1 |
A device for mixing two liquids containing fast reacting components, particularly mono-, di- or polyamine and phosgene or solutions thereof, the device comprising an inner flow path (1) for a first liquid and an outer flow path (9) for a...
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WO/2009/063828A1 |
A process for producing a polyisocyanate which comprises a purification step in which an unpurified polyisocyanate is purified. The purification step comprises: a tar ingredient removal step in which tar ingredients are removed from the ...
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WO/2009/063862A1 |
A flash tank for depressurizing a high-pressure corrosive fluid. The tank comprises: a tank into which the corrosive fluid flows; and an anticorrosive member disposed in a part in the tank which comes into contact with the corrosive fluid.
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WO/2009/059903A1 |
The subject of the present invention is a method for preparing an isocyanate compound. The invention relates more particularly to the preparation of a diisocyanate compound from the corresponding diamine compound. The invention is direct...
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WO/2009/053482A2 |
This invention relates to novel compounds with ester linkage (s) capped with either electron deficient olefinic linkage (s) or group (s) or reactive functional groups (termed herein as 'active methylene reagents'), and curable compositio...
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WO/2009/027232A1 |
The invention relates to a method for producing isocyanates.
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WO/2009/027234A1 |
The invention relates to a method for producing isocyanates.
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WO/2009/027418A1 |
The invention relates to a method for producing polyisocyanates, comprising the following steps: a) amines are reacted with phosgene; b) hydrogen chloride, excess phosgene, and, if necessary, the solvent are separated from the reaction m...
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WO/2009/023989A1 |
The present invention provides a jet reactor with flow ducts and a process for preparing isocyanates using it. The jet reactor with flow ducts situates the flow ducts in inner feed pipe which form cyclone and reinforce vortex, thereby am...
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WO/2009/024407A1 |
Process for the preparation of polyaromatic polyamines comprising the step of reacting formaldehyde with at least one monoaromatic monoamine and at least one monoaromatic compound containing at least two amino functions in the presence o...
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WO/2009/022600A1 |
Disclosed are: a novel process for producing a hydrazine compound useful as an insecticidal compound; an intermediate which can be used suitably in the process; and a process for producing the intermediate. The intermediate includes a sp...
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WO/2008/148631A1 |
The present invention relates to a process for the preparation of di- and polyamines of the diphenylmethane series, and to the preparation of di- and polyisocyanates of the diphenylmethane series from these di- and polyamines. The di- an...
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WO/2008/143207A1 |
A process for producing an ethylenically unsaturated isocyanate bearing an ether linkage under such conditions that the ether linkage little causes cleavage and the polymerization of the unsaturated group is inhibited. Specifically, a pr...
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WO/2008/120645A1 |
Disclosed are: a method for producing an isocyanate by using a composition comprising a carbamic acid ester and an aromatic hydroxy compound, which does not need to use any phosgene and does not have various problems accompanied by a con...
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WO/2008/086922A1 |
The present invention relates to a method for producing diisocyanates from diamines and phosgene in the gas phase.
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WO/2008/084824A1 |
A process by which an isocyanate can be stably produced for long in high yield without using phosgene. It is free from various problems encountered in prior-art techniques. The process for producing an isocyanate is characterized by subj...
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WO/2008/077672A1 |
The invention relates to a multi-stage process for the continuous, phosgene-free preparation of (cyclo)aliphatic diisocyanates that comprises the conversion of (cyclo)aliphatic diamines into the corresponding (cyclo)alkylene biscarbamate...
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WO/2008/074645A1 |
The present invention relates to a process for preparing 2-methylpentane 1,5-diisocyanate, 2-methylpentane 1,5-diisocyanate prepared in this way and its use.
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WO/2008/071564A1 |
The present invention relates to a process for preparing diisocyanates by reaction of the corresponding amines with phosgene, if appropriate in the presence of inerts, wherein the reaction takes place at least partly in an apparatus whos...
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WO/2008/069256A1 |
The present invention provides a method for preventing polymerization, and a polymerizable monomer composition favorably used therefor that includes a (meth)acryloyl group-containing isocyanate compound and a specific polymerization inhi...
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WO/2008/064887A1 |
The invention relates to a method for preparing an intermediate compound for a diisocyanate, comprising reacting a diamine represented by the formula H2N-(CH2)0-Y-(CH2)p-NH2 wherein Y is selected from CH(OX) or CH(COOX), o and p each are...
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WO/2008/062859A1 |
A process for the production of phenylalanine derivatives having quinazolinedione rings as represented by the general formula (1) or pharmaceutically acceptable salts thereof:(1) which comprises the following steps (a), (b) and (c): the ...
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WO/2008/059953A1 |
Disclosed is a method for stably producing an isocyanate with high yield for a long time without using phosgene. This method for producing an isocyanate does not cause the problems involved in the prior art. Specifically disclosed is a m...
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WO/2008/055898A1 |
The invention relates to a method for producing isocyanates by reacting the corresponding amines with phosgene, optionally in the presence of at least one inert medium, in the gas phase. Said method is characterised in that n amine flows...
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WO/2008/055899A1 |
The invention relates to a method for producing isocyanates from the corresponding amines and phosgene by carrying out the reaction in the gas phase in at least one reaction zone and guiding the reaction mixture to at least one zone in w...
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WO/2008/055904A1 |
The invention relates to a method for producing isocyanates by reacting amines with phosgene in the gas phase in at least one reaction zone, the reaction mixture being guided to at least one zone in which at least one liquid is injected ...
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WO/2008/037173A1 |
A hole jet reactor and its use, especially a process for the preparation of an isocyanate by the gas phase reaction of the aliphatic or aromatic di- or tri-amine with phosgene in the reactor. Mixing of the reactants in the reactor is imp...
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WO/2008/031755A1 |
The invention relates to processes for preparing isocyanates by splitting urethane, said process comprising the following process steps: (i) provision of synthesis gas from natural gas, coal, heavy oil or biomass gasification and product...
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WO/2008/025659A1 |
The invention relates to a multistage method for the continuous production of organic, distillable isocyanates, preferably diisocyanates, more preferred aliphatic or cycloaliphatic diisocyanates, by reacting the corresponding organic ami...
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WO/2008/015134A1 |
The present invention relates to a process for preparing pentamethylene 1,5-diisocyanate, to pentamethylene 1,5-diisocyanate prepared in this way and to its use.
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WO/2008/009897A1 |
The invention relates to the preparation of pregabalin and its opposite enantiomer, or a pharmaceutically-acceptable salt of either thereof, and to the intermediates used for their preparation.
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WO/2008/006775A1 |
The object of the invention is a method for producing isocyanates by reacting amines with phosgene, characterized in that the amine, or a mixture of amine and a solvent in the form of an aerosol, is mixed with gaseous phosgene, and the a...
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WO/2007/140380A2 |
In various aspects, the present teachings provide labeling reagents and sets of labeling reagents containing one or more heavy atom isotopes for the relative quantitation, absolute quantitation, or both, of hydroxylated compounds includi...
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WO/2007/122847A1 |
A reagent for organic syntheses with which a chemical reaction can be conducted in a liquid phase and unnecessary compound(s) can be easily separated at low cost from the liquid phase after completion of the reaction. The reagent for org...
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WO/2007/116761A1 |
Disclosed is a diphenylmethane isocyanate composition comprising a composition which is obtained by adding an alkylchlorosilane having 4-24 carbon atoms in total in the molecular structure to a diphenylmethane isocyanate having an acid d...
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WO/2007/112618A1 |
The present invention provided a kind of vinyloximinoether-containing methyl carbamate derivatives represented by the general formula (I), wherein R1, R2and R3 are, independently, alkyl, R4 and R5 are, independently, hydrogen or alkyl, R...
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WO/2007/088152A1 |
A process for preparing isocyanates by reacting olefins with isocyanuric acid in a solvent, the solvent being an ionic liquid. The ionic liquid is preferably selected from (A) salts of the general formula (I) in which n is 1, 2, 3 or 4, ...
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WO/2007/085534A1 |
The invention provides a process for simultaneously preparing 4,4'-diphenylmethanediamine and diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates, comprising the steps of a) preparing a mixture of diphenylmethaned...
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WO/2007/082818A1 |
The invention relates to a multi-stage method for continuously producing organic, distillable polyisocyanates, preferably diisocyanates, especially preferred aliphatic or cycloaliphatic diisocyanates, by reacting the corresponding organi...
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WO/2007/076998A1 |
The invention relates to a method for producing liquid, storage-stable isocyanate mixtures comprising carbodiimide (CD) and/or uretonimine (UI) groups, with low colour index. The invention also relates to the isocyanate mixtures obtained...
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WO/2007/051740A1 |
The invention relates to a process for preparing polyisocyanate mixtures containing at least 90% by weight, based on the polyisocyanate mixture, of a mixture a) of ai) diphenylmethane diisocyanate and aii) triphenylenedimethylene triisoc...
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WO/2007/049656A1 |
Disclosed are a novel fluoroadamantane derivative and a method for producing the same. Specifically disclosed are a method for producing a compound (2) shown below wherein a compound (1) shown below is reacted with an azide and then subj...
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WO/2007/036479A1 |
The present invention relates to a method for purifying residues containing isocyanates.
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WO/2007/031444A1 |
The invention relates to a multistage process for the continuous preparation of organic, distillable polyisocyanates, preferably of diisocyanates, particularly preferably of aliphatic or cycloaliphatic diisocyanates, by reacting the corr...
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