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Matches 201 - 250 out of 1,679

Document Document Title
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/2007/088152A1
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/2007/014936A2
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...  
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/2007/010996A1
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/2007/007887A3
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/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/2006/130405A3
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/2006/130405A2
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/2006/103188A1
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/2006/103189A1
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/2006/095761A1
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/2006/049264A1
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/2006/048171A1
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/2006/040912A1
[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...  
WO2005092842A8
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/2005/092842A1
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/2005/089085A3
A hardener composition for use as a component of a two component polyurethane coating composition, comprising a polyisocyanate, a catalyst for promoting reaction of the polyisocyanate with a reactive hydrogen compound, and one or more an...  
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 carbonĀ­ isotope labeled compounds are useful as radiopharmaceuticals, especially for use in ...  
WO2004014845A8
The invention relates to a method for producing organic isocyanates, said method consisting of the following steps: (a) a first partial quantity of chlorine containing < 400 ppm of free or bonded bromine and iodine is prepared; (b) a sec...  
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/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/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.  
WO2004080587A8
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...  
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...  
WO/2004/058689A1
The invention relates to a method for producing isocyanates by reacting amines with phosgene. Said method is characterized by the fact that the phosgene-containing feedstock flow has a hydrogen chloride content of more than 0.8 percent b...  
WO/2004/056757A1
The invention relates to a method for producing isocyanates by reacting amines with phosgene inside a reactor followed by separating the isocyanate out from the reaction mixture exiting the reactor and purifying this isocyanate. The inve...  

Matches 201 - 250 out of 1,679