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Matches 201 - 250 out of 1,935

Document Document Title
WO/2009/013062A1
Process for the synthesis of non cyclic carbamate derivatives from amine compounds, alcohols and CO2 in the presence of ionic liquids and optionally in the presence of a base.  
WO/2009/002900A2
A method for producing toluene diisocyanate is disclosed which comprises forming a dispersion comprising phosgene gas bubbles dispersed in toluene diamine liquid phase, wherein said gas bubbles have a mean diameter less than 1 micron; an...  
WO/2009/002900A3
A method for producing toluene diisocyanate is disclosed which comprises forming a dispersion comprising phosgene gas bubbles dispersed in toluene diamine liquid phase, wherein said gas bubbles have a mean diameter less than 1 micron; an...  
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...  
WO/2008/144987A1
The present invention provides the preparation of isocyanate-containing alkyl silane, containing the following steps: (a) affording carbamate-containing alkyl silane, (b) carbamate-containing alkyl silane of step (a) is decomposed in the...  
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...  
WO/2008/131870A1
The invention relates to a method for the oxidation of CO in a stream containing HCl and its subsequent use in the Deacon method, wherein the catalyst comprises tin dioxide and at least one ruthenium compound containing oxygen and/or chl...  
WO/2008/131873A1
The invention relates to a method for removing organic components from an optionally heated crude gas stream containing hydrogen chloride, comprising the following steps: A) regulation of the crude gas stream to be purified to a maximum ...  
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...  
WO2008064887A8
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...  
WO/2008/086922A1
The present invention relates to a method for producing diisocyanates from diamines and phosgene in the gas phase.  
WO/2008/084054A1
The subject of the invention is polyurethane rigid foams which can be produced by the reaction of a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive with isocyanates in the presence of c) propellan...  
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...  
WO/2008/077287A1
An orifice jet-type injection reactor comprises the parts as following: a first inlet (1a), a second inlet (1b), outer conduit (2), inner conduit (4), jet holes (5), and mixing and reaction area (6). The inner conduit (4) is located insi...  
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...  
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.  
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...  
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...  
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...  
WO/2008/058920A1
The invention relates to polyphenylenepolymethylene polyisocyanates (B) comprising (B1) the 2-ring product of polyphenylenepolymethylene polyisocyanate (B2) the 3-ring product of polyphenylenepolymethylene polyisocyanate (B3) the 4-ring ...  
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...  
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...  
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 ...  
WO/2008/049783A1
A process for preparing isocyanates by phosgenating amines, wherein phosgene and amine are contacted in at least 2 mixing chambers connected in parallel.  
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...  
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...  
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.  
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...  
WO/2007/134775A1
The present invention relates to a process for preparing chlorine from a gas containing hydrogen chloride and carbon monoxide, which comprises the step of catalysed oxidation of the carbon monoxide and, if applicable, further oxidizable ...  
WO/2007/134774A1
The invention relates to a method for producing organic isocyanates, whereby phosgene is produced by reacting CO with Cl2, the phosgene is reacted with organic amines to form the organic isocyanates, and the organic isocyanates are extra...  
WO/2007/131700A1
A process is described for preparing isocyanates. The process comprises at least the following steps: a) preparation of phosgene by reaction of chlorine with carbon monoxide, b) reaction of the phosgene formed in step a) with at least on...  
WO/2007/131638A1
The present invention relates to a method for the coupled production of chlorine and isocyanates, with the sulfuric acid which was used for both methods combined after its use, concentrated together, and flowing back into one or both met...  
WO/2007/117404A3
Methods are disclosed for the conversion of primary amines to other functional groups. The methods can be used to prepare chiral organic compounds, including organic alcohols and organic halides. The methods can be carried out by treatin...  
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...  
WO/2007/115971A1
The invention provides a process for preparing polyurethanes by reacting polyisocyanates a) with compounds having at least two hydrogen atoms reactive with isocyanate groups b), characterized in that the polyisocyanate a) used is at leas...  
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, ...  
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...  
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...  
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...  
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...  
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...  
WO/2007/039362A1
Process for preparing polyisocyanates involving the removal of a solvent-stream enriched in volatile, aromatic, non-isocyanate-group-containing contaminants from the polyisocyanate production process.  
WO/2007/036479A1
The present invention relates to a method for purifying residues containing isocyanates.  
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...  
WO/2007/028715A1
The invention relates to a method for producing isocyanates and a device suitable therefor and to the use thereof.  
WO/2007/020777A1
A process for producing an aliphatic isocyanate having an oxyalkylene group which comprises stepwise reacting either an aliphatic amine having an oxyalkylene group or a hydrochloride thereof with phosgene in an ester solvent in at least ...  
WO/2007/015852A2
A process for the preparation of aromatic carbamates comprising contacting one or more organic carbonates with an aromatic amine or urea in the presence of a catalyst and recovering the resulting aromatic carbamate product, characterized...  
WO/2007/014936A3
The invention relates to a method for producing diisocyanates from diamines and phosgene in the gas phase.  
WO/2007/014936A2
The invention relates to a method for producing diisocyanates from diamines and phosgene in the gas phase.  
WO/2007/015852A3
A process for the preparation of aromatic carbamates comprising contacting one or more organic carbonates with an aromatic amine or urea in the presence of a catalyst and recovering the resulting aromatic carbamate product, characterized...  

Matches 201 - 250 out of 1,935