| Document |
Document Title |
|
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/2007/116761A1 |
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/2007/014936A2 |
The invention relates to a method for producing diisocyanates from diamines and phosgene in the gas phase.
|
|
WO/2007/010996A1 |
An isocyanate has been widely used as a starting material for the production of a polyurethane material, a polyisocyanurate material or the like which is suitably applicable to the field of optical materials. Disclosed is a process for p...
|
|
WO/2007/007887A2 |
A concentrating method and a concentrating system for concentrating polyisocyanate residues that can effectively concentrate polyisocyanate residues from crude polyisocyanate comprising polyisocyanate and polyisocyanate residues in a sho...
|
|
WO/2006/134137A1 |
The invention relates to a method for preparing isocyanate adducts, comprising the following steps a) the isocyanate adduct is reacted with pure ammonia, b) the reaction product arising in step a) is then prepared and, c) the formed amin...
|
|
WO/2006/131381A1 |
The invention relates to a method for producing N-aryl carbamates (urethanes) and N-aryl isocyanates. According to said method, aromatic nitro compounds are subjected to a reductive carbonylation in the presence of carbon dioxide and org...
|
|
WO/2006/130405A2 |
Process for preparing mixtures comprising diphenylmethane diisocyantes and polyphenylpolymethylene polyisocyanates having a higher HunterLab color (L) number by staged reaction of the corresponding mixtures of diphenylmethanediamines and...
|
|
WO/2006/109576A1 |
It is intended to provide an apparatus for continuously producing polyisocyanate by supplying polyamine and carbonyl chloride and quickly contacting them to inhibit an undesirable side reaction between polyamine and polyisocyanate so tha...
|
|
WO/2006/109416A1 |
An apparatus for polyisocyanate production in which chlorine can be stably produced from hydrogen chloride generated as a by-product, carbonyl chloride can be stably reacted with a polyamine, and the by-product hydrogen chloride gas can ...
|
|
WO/2006/103189A1 |
The invention relates to a method for producing isocyanates, comprising the following steps: (1) producing a raw MDA mixture by reacting aniline with formaldehyde; (2) separating the raw MDA mixture into MMDA and PMDA; (3a) phosgenating ...
|
|
WO/2006/103188A1 |
The invention relates to a method for producing isocyanates comprising the following steps: (1) producing a raw MDA mixture by reacting aniline with formaldehyde, during which the reaction conditions are selected so that the resulting ra...
|
|
WO/2006/095761A1 |
The invention provides a process for the production of polyisocyanate which permits effective utilization of hydrogen chloride formed in the production of polyisocyanate as a by-product and reduction in environment load, and equipment fo...
|
|
WO/2006/072360A1 |
The invention relates to a method for largely eliminating chlorine compounds from organic isocyanates or isocyanate mixtures by contacting said isocyanates or isocyanate mixtures with a water-containing inert gas flow or an organic mater...
|
|
WO/2006/070100A1 |
The invention concerns isocyanate compositions exhibiting good mixing properties. The compositions comprise for successive or simultaneous addition: an isocyanate sub-composition comprising by weight not more than 5 % of diisocyanate mon...
|
|
WO/2006/058807A1 |
The invention relates to aliphatic, cycloaliphatic or (cyclo)aliphatic diisocyanates, in addition to a method for their production.
|
|
WO/2006/048171A1 |
The invention relates to a method for producing polyisocyanates by reacting primary amines with phosgene in the presence of a solvent. Said method is characterised in that ionic liquids are used as the solvent.
|
|
WO/2006/049264A1 |
There are provided a novel ethylenically unsaturated group-containing isocyanate compound, a process for producing the same, and a reactive monomer produced from the isocyanate compound, a reactive polymer and its use. The ethylenically ...
|
|
WO/2006/048141A1 |
The invention relates to a method for producing isocyanates by reacting the corresponding amines with phosgene in the presence of solvents. Said method is characterised in that compounds forming salt melts with hydrogen chloride are used...
|
|
WO/2006/040912A1 |
[PROBLEMS] To provide a method by which the amount of hydrolysable chlorine contained in crude diphenylmethane diisocyanate is reduced to 0.03% or less in a short time. [MEANS FOR SOLVING PROBLEMS] The method of purifying crude diphenylm...
|
|
WO/2005/123665A1 |
The invention relates to a method for producing isocyanates by reacting amines with phosgene in the gaseous phase in a reaction zone, whereby in order to terminate the reaction, the reaction mixture is guided through a zone, into which a...
|
|
WO/2005/115974A1 |
The inventive method for producing isocyanate by reacting amines with phosgene, wherein a phosgene-containing educt flow (i) is substentially isocyanate-free and (ii) has an oxygen chloride mass content (hereafter referred to as HCI) whi...
|
|
WO/2005/092842A1 |
The invention aims to provide a method whereby (meth)acrylate derivatives having an isocyanate group can be obtained in high yield by dehydrochlorination of 3-chloropropionate derivatives having an isocyanate group under industrially adv...
|
|
WO/2005/085186A1 |
Disclosed is a method for producing an isocyanate compound through reaction between a carbonate of a corresponding amine compound and phosgene, wherein phosgene is introduced into an organic solvent solution of the carbonate of the amine...
|
|
WO/2005/061445A1 |
Methods and reagents for rhodium-promoted carbonylation via isocyanate using carbon-isotope labeled carbon monoxide are provided. The resultant carbon isotope labeled compounds are useful as radiopharmaceuticals, especially for use in ...
|
|
WO/2005/012236A1 |
The present invention provides a stabilized (meth)acryloyloxyalkyl isocyanate, a process for stabilization thereof and a process for preparation of the same. More particularly, it provides a (meth)acryloyloxyalkyl isocyanate having a sma...
|
|
WO/2005/012237A1 |
A process for preparing a high purity (meth)acryloyloxyalkyl isocyanate having a very small hydrolyzable chlorine content is provided. The high purity (meth)acryloyloxyalkyl isocyanate is prepared by subjecting a hydrolyzable chlorine co...
|
|
WO/2004/111119A1 |
The invention relates to a mixture (1) containing (a) isocyanate and (b) stabilisers with a molecular weight of between 600 g/mol and 10,000 g/mol, said stabilisers comprising at least two phenolic groups.
|
|
WO/2004/080587A1 |
The invention relates to a method for producing polyisocyanates by reacting primary amines with phosgene, comprising the following steps: a) mixing the amine with the phosgene; b) reacting the amine with the phosgene in a reactor, inside...
|
