| Patents for C07C 263 - Preparation of derivatives of isocyanic acid (3,065) |
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| 09/26/2006 | US7112694 single-stage reaction of primary amines with phosgene in a cascade of tube reactors; total reaction volume can be reduced; gas phase formed is separated off after each reactor; only the liquid phase is passed to the next reactor |
| 09/20/2006 | EP1379569B1 Method for producing mdi, especially 2,4'-mdi |
| 09/20/2006 | CN1275935C Process for the production of diaminodiphenylmethane and its higher homologues |
| 09/19/2006 | US7108770 Fractionating to remove solvents and reaction residues; separating the crude into four product fractions |
| 09/14/2006 | WO2006095761A1 Process for production of polyisocyanate and equipment for production thereof |
| 09/13/2006 | CN1274673C Integrated method for producing isocyanates |
| 09/06/2006 | CN1829686A Process for preparing high purity (meth)acryloyloxyalkyl isocyanate |
| 09/06/2006 | CN1829685A Stabilized (meth)acryloyloxyalkyl isocyanate, a process for stabilization thereof and a process for preparation of the same |
| 09/06/2006 | CN1827593A Process for preparing polyisocyanate by solid phosgene |
| 09/06/2006 | CN1273445C Method for preparing coating material by using composite based on isocyanate |
| 08/30/2006 | EP1694636A1 Methods for carbon isotope labeling synthesis by rhodium-promoted carbonylation via isocyanate using azides and carbon-isotope monoxide |
| 08/30/2006 | EP1255728B1 Integrated process for the preparation of aromatic isocyanates and procedures for effecting the relative intermediate phases |
| 08/24/2006 | DE102005006692A1 Verfahren zur Herstellung von Di-und Polyaminen der Diphenylmethanreihe A process for preparing di- and polyamines of the diphenylmethane |
| 08/23/2006 | CN1821221A Poly methylene poly phenyl poly isocyanate with anti-scaling property and preparing method |
| 08/23/2006 | CN1821213A Process for the preparation of di- and polyamines of the diphenylmethane series |
| 08/17/2006 | US20060183946 Process for producing 5-nitro-3,4-dihydro-1(H)-naphthalinone, 1,5-naphthalenediamine and 1,5-naphthalene diisocyanate |
| 08/17/2006 | US20060183938 Process for the production of di-and polyamines of the diphenylmethane series |
| 08/16/2006 | EP1690851A1 Process for the preparation of di- and polyamines of the diphenylmethane series |
| 08/15/2006 | CA2215649C Stabilized blocked isocyanates and their use in polyurethane stoving lacquers |
| 08/10/2006 | US20060178526 Process for producing 5-nitro-3,4-dihydro-1(2H)-naphthalinone, 1,5-naphthalenediamine and 1,5-naphthalene diisocyanate |
| 08/09/2006 | EP1575908B1 Method for separating out solvent from a reaction mixture resulting from an isocyanate synthesis and for purifying this solvent |
| 08/03/2006 | US20060173206 Process for the distillation of a mixture of isomeric diisocyanatodiphenyl-methanes |
| 08/03/2006 | DE102005004170A1 Verfahren zur Destillation eines Gemisches isomerer Diisocyanatodiphenylmethane A process for distillation of a mixture of isomeric diisocyanatodiphenylmethanes |
| 08/02/2006 | EP1686112A1 Process for distilling a mixture of isomeric diisocyanatodiphenylmethanes |
| 08/02/2006 | CN1810776A Process for distilling a mixture of isomeric diisocyanatodiphenylmethanes |
| 08/01/2006 | US7084297 Production of isocyanates in the gaseous phase |
| 07/27/2006 | US20060167207 Mixtures containing isocyanate stabilisers of the hindered phenol type with a high molecular weight |
| 07/26/2006 | CN1266124C Process for preparing polyisocyanate ester |
| 07/26/2006 | CN1266123C Production of isocyanates in the gaseous phase |
| 07/25/2006 | US7081548 Multistage reaction of chlorination and deamination 2-methyl-5-nitro aniline to get 3-chloro-5-nitrotoluene |
| 07/19/2006 | CN1806002A Mixtures containing isocyanate stabilisers of the hindered phenol type with a high molecular weight |
| 07/19/2006 | CN1803766A Blocked isocyanate and preparation method thereof |
| 07/13/2006 | WO2006072360A1 Method for the reduction of chlorine-containing components in organic isocyanates |
| 07/13/2006 | DE102004063222A1 Method for reducing hydrolysable chlorine content in organic isocyanates, comprises contacting the isocyanate with water-containing inert gas stream/organic material with cationic exchange effect and releasing the obtained mixture |
| 07/13/2006 | DE102004063221A1 Method for reducing hydrolysable chlorine content in organic isocyanates, comprises contacting the isocyanate with water-containing inert gas stream/organic material with cationic exchange effect and releasing the obtained mixture |
| 07/12/2006 | CN1263732C Process for preparing gas isocyanate |
| 07/06/2006 | WO2006070100A1 Compositions exhibiting good mixing properties and use of silyl derivatives as isocyanate additives, in particular of isocyanate mixture |
| 06/22/2006 | US20060135810 residual stream is transported separately from the unvaporizable residue which is contained in part-stream; dividing wall is continued to base and no condensate stream produced by condenser which would contain the residual stream in vapor form is present above feed of stream to the dividing wall column |
| 06/22/2006 | DE102004060739A1 Preparation of polyisocyanate containing biuret group comprises mixing di- and/or polyisocyanate; water (vapor) as biuret-forming agent; optionally catalyst, in a mixing device and leading the obtained reaction mixture into a reactor |
| 06/22/2006 | DE102004060038A1 Verfahren zur Herstellung flüssiger, lagerstabiler Carbodiimid- und/oder Uretonimingruppen aufweisender organischer Isocyanate mit niedriger Farbzahl Process for the preparation of liquid storable carbodiimide and / or uretonimine containing Direction of organic isocyanates with low color number |
| 06/21/2006 | EP1671988A2 Process for the preparation of liquid storage stable organic isocyanates with low colour index containing carbodiimide and/or uretonimino groups |
| 06/21/2006 | CN1789241A Method for preparing a liquid, storied stably, low-color indexed, carbodiimide and/or uretone imine group-containing organic isocyanic ester |
| 06/20/2006 | US7064233 reacting primary amines with phosgene in inert solvent in presence of dimethyl sulfoxide and/or dimethyl sulfone |
| 06/15/2006 | US20060128928 Process for the production of liquid, storage-stable organic isocyanates with a low colour index having carbodiimide- and/or uretone imine groups |
| 06/15/2006 | US20060123842 a partial or complete condensation of phosgene, distillation or stripping in a column to remove the hydrogen chloride from the bottom product phosgene, scrub of the top product hydrogen chloride by a process solvent to absorb phosgene in process solvent; with an amine phosgene forms isocyanate |
| 06/13/2006 | US7060845 Stabilized activated derivatives of carbamic acid, their process of preparation and their use for the preparation of ureas |
| 06/08/2006 | WO2006058807A1 Aliphatic, cycloaliphatic or (cyclo)aliphatic diisocyanates that are stable in storage |
| 06/08/2006 | DE102004058173A1 Lagerstabile aliphatische, cycloaliphatische oder (cyclo)aliphatische Diisocyanate Storage-stable aliphatic, cycloaliphatic or (cyclo) aliphatic diisocyanates |
| 06/08/2006 | DE102004056849A1 Neue Polyisocyanatgemische, ein Verfahren zu ihrer Herstellung und ihre Verwendung als Härterkomponente in Polyurethanlacken New polyisocyanate, a process for their preparation and their use as a curing component in polyurethane lacquers |
| 06/06/2006 | US7057071 From 2-nitrophenyl(butyronitrile of butyric acid) by cyclization, amination, aromatization, hydrogenation |
| 06/01/2006 | US20060116529 Method for the production of isocyanates |
| 06/01/2006 | DE102004057916A1 Blocked polyisocyanate for dual-cure coating, contains radiation-curable group(s) and specific structural unit(s) |
| 05/31/2006 | EP1660438A1 Process for preparing high purity (meth)acryloyloxyalkyl isocyanate |
| 05/31/2006 | CN1257890C Method for producing isocyanates |
| 05/16/2006 | CA2199913C Heat exchange media for the thermal cracking of carbamidic acid esters |
| 05/11/2006 | WO2006049264A1 Ethylenically unsaturated group-containing isocyanate compound and process for producing the same, and reactive monomer, reactive (meth)acrylate polymer and its use |
| 05/11/2006 | WO2006048171A1 Method for producing polyisocyanates |
| 05/11/2006 | WO2006048141A1 Method for producing polyisocyanates |
| 05/11/2006 | US20060099138 Method for producing chlorine from hydrochloric from hydrochloric aid |
| 05/10/2006 | EP1654222A1 Stabilized (meth)acryloyloxyalkyl isocyanate, a process for stabilization thereof and a process for preparation of the same |
| 05/09/2006 | US7041776 Reacting aniline and formaldehyde in hydrogen chloride acid catalyst to produce diphenylmethane polyamine; phosgenation |
| 05/04/2006 | US20060094897 Process for the preparation of di- and polyamines of the diphenylmethane series |
| 05/04/2006 | DE102004053662A1 Verfahren zur Herstellung von Polyisocyanaten A process for the preparation of polyisocyanates |
| 05/04/2006 | DE102004053661A1 Verfahren zur Herstellung von Polyisocyanaten A process for the preparation of polyisocyanates |
| 05/04/2006 | DE102004052370A1 Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe Process for the preparation of di- and polyamines of the diphenylmethane |
| 05/03/2006 | EP1652835A1 Process for the preparation of di- and polyamines of the diphenylmethane series |
| 05/03/2006 | CN1765875A Method for preparing diamine and polyamine of diphenylmethane series |
| 05/02/2006 | US7038002 Production of mixtures of diisocyanates and polyisocyanates from the diphenylmethane series with high contents of 4,4′-methylenediphenyl diisocyanate and 2,4′-methylenediphenyl diisocyanate |
| 04/27/2006 | US20060089507 Method for separating isocyanates out from a reaction mixture |
| 04/26/2006 | CN1762988A Blocked biuretized isocyanates |
| 04/26/2006 | CN1762987A Biuretized polyisocyanates and blocked biuretized polyisocyanates |
| 04/26/2006 | CN1253434C Polyisocyanate with good water dispersiveness |
| 04/26/2006 | CN1253433C New technique for preparing 5-isocyanic ester-isophtyaloyl chlorine |
| 04/26/2006 | CN1253432C Method for preparing (cycle) fatty isocyanate |
| 04/26/2006 | CN1253431C Method for preparing (cycle) fatty isocyanate |
| 04/26/2006 | CN1253427C Method of preparing dinitronaphthalene isomer mixture having high percentage 1,5-dinitronaphthalene |
| 04/20/2006 | WO2006040912A1 Method of purifying crude diphenylmethane diisocyanate |
| 04/19/2006 | EP1189877B1 Method for dehydrogenofluorination of an aromatic carbamoyl fluoride |
| 04/19/2006 | CN1252044C Improving method for preparing (poly) isocyanate by gas phase |
| 04/18/2006 | US7030274 process includes neutralizing acidic impurities in organic isocyanate comprising 90 to 100% by weight of diphenylmethane diisocyanate, partially carbodiimidizing isocyanate groups of neutralized organic isocyanate, and terminating carbodiimidization reaction; stability; requires less catalyst stopper |
| 04/12/2006 | CN1758956A Method for producing polyisocyanates |
| 04/06/2006 | DE102004047921A1 Polyisocyanate mit sterisch anspruchsvollen Phenolen blockiert Blocked polyisocyanates with bulky phenols |
| 03/30/2006 | DE102004046308A1 Neues Verfahren zur Herstellung von 3,5-Dimethylpyrazol-blockierten Polysocyanaten New process for the preparation of 3,5-dimethylpyrazole-blocked Polysocyanaten |
| 03/29/2006 | CN1247535C Method for production of isocyanates |
| 03/29/2006 | CN1247534C Method for producing isocyanates |
| 03/28/2006 | US7019164 Heating an amine in vapor form in an inert gas and phosgene to a temperature of 200-600 degrees c |
| 03/23/2006 | DE102004036499A1 Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten Multistage process for continuously preparing cycloaliphatic diisocyanates |
| 03/22/2006 | EP1636306A1 Mixtures containing isocyanate and stabilisers of the hindered phenol type with a high molecular weight |
| 03/15/2006 | EP1634868A2 Multistep process for the continuous preparation of cycloaliphatic diisocyanates |
| 03/09/2006 | US20060052629 Reprocessing of reaction material discharged from phosgenation reactors |
| 03/02/2006 | US20060047141 Method for producing light coloured polyalkylene glycol diethyl ether of fatty acid alcanolamine |
| 03/02/2006 | DE102004040220A1 Preparation of organic monoisocyanate comprises reaction of isocyanate component (having 2,2'-methylene diphenyldiisocyanate) with amine component (having monoamine) and distillative separation of the monoisocyanate optionally under vacuum |
| 02/23/2006 | US20060041166 Process for the continuous preparation of organic monoisocyanates and polyisocyanates |
| 02/21/2006 | CA2096311C Process for the preparation of alkyl isocyanates |
| 02/09/2006 | DE102004032871A1 Verfahren zur Herstellung von Polyisocyanaten durch adiabate Phosgenierung von primären Aminen A process for preparing polyisocyanates by phosgenation of primary amines adiabatic |
| 02/02/2006 | US20060025556 Process for preparing polyisocyanates by the adiabatic phosgenation of primary amines |
| 02/02/2006 | DE102004032416A1 Verfahren zur Herstellung von Polyaminen der Diphenylmethanreihe bei niedriger Protonierung A process for the production of polyamines of the diphenylmethane series at low protonation |
| 02/01/2006 | CN1729170A Method for separating out solvent from a reaction mixture resulting from an isocyanate synthesis and for purifying this solvent |
| 02/01/2006 | CN1729169A Separation of a substance mixture consisting of hydrogen chloride and phosgene |
| 02/01/2006 | CN1729168A Method for the continuous production of isocyanates |