| Patents for C07C 263 - Preparation of derivatives of isocyanic acid (3,065) |
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| 05/23/2007 | CN1966489A Method for producing 4,4'-methylene (diphenyldiisocyanate) |
| 05/23/2007 | CN1317262C Preparation of (poly) isocyanic ester in gas phase |
| 05/10/2007 | WO2007051740A1 Process for preparing polyisocyanate mixtures |
| 05/10/2007 | DE102005053065A1 Verfahren zur Herstellung von Polyisocyanatgemischen Process for preparing polyisocyanate mixtures |
| 05/03/2007 | WO2007049656A1 Novel fluoroadamantane derivative and method for producing same |
| 05/02/2007 | CN1956948A Isocyanate production method |
| 05/01/2007 | US7211689 Reacting primary amines and sulfonamide compound with phosgene in inert solvent; for production of polyurethanes and drugs |
| 04/26/2007 | DE102005051399A1 Apparatus for separating monomers from a residue containing diisocyanate comprises providing a highly viscous and/or a non-brittle solid material, and removing the obtained mixture from the apparatus |
| 04/25/2007 | CN1312123C Method for the continuous production of isocyanates |
| 04/18/2007 | CN1310879C Novel polyisocyanate compound, method for producing the same, and uses thereof |
| 04/18/2007 | CN1310878C Process for the distillation of a mixture of isomeric diisocyanatodiphenylmethanes |
| 04/18/2007 | CN1310877C Dead-end polyisocyanic acid ester |
| 04/18/2007 | CN1310876C Process for the purification of mixtures of toluenediisocyanate incorporating a dividing-wall distillation column |
| 04/18/2007 | CN1310875C Moderate-pressure gas phase phosgenation |
| 04/17/2007 | US7205439 Process for the preparation of di- and polyamines of the diphenylmethane series |
| 04/17/2007 | US7205430 reacting aniline and formaldehyde in the presence of an acid catalyst to form di- and polyamines of the diphenylmethane series then phosgenating |
| 04/12/2007 | WO2007039362A1 Method for the production of polyisocyanates |
| 04/12/2007 | DE102005043799A1 Verfahren zur Herstellung von Isocyanaten A process for the preparation of isocyanates |
| 04/12/2007 | CA2621331A1 Method for the production of polyisocyanates |
| 04/10/2007 | US7202384 Acidifying 4-(2-nitrophenyl)-n-butyronitrile to produce 4-(2-nitrophenyl)-n-butyric acid; chlorinating to produce 4-(2-nitrophenyl)-n-butyryl chloride; and cyclizing |
| 04/10/2007 | US7202378 Acidifying 4-(2-nitrophenyl)-n-butyronitrile, chlorinating to produce 4-(2-nitrophenyl)-n-butyryl chloride, then cyclizing to produce 5-nitro-3,4-dihydro-1(2H)-naphthalinone; aminating the 5-nitro-3, aromatizing, then hydrogenating the 5-nitro-1-naphthylamine |
| 04/05/2007 | WO2007036479A1 Method for purifying residues containing isocyanates |
| 04/05/2007 | WO2007014936A3 Method for producing diisocyanates |
| 04/05/2007 | WO2007014936A2 Method for producing diisocyanates |
| 04/05/2007 | DE102005046816A1 Separating monomers from a residue containing diisocyanate in an apparatus, in which the residue forms a highly viscose liquid and/or non-embrittling solid during the entire retention time in the apparatus, and is forcibly discharged |
| 04/04/2007 | EP1289649B1 Method and device for the continuous production of organic mono or polyisocyanates |
| 04/04/2007 | CN1939899A Synthesis of 1,5-naphthalene isocyanate |
| 03/29/2007 | DE102005026500A1 Herstellung von N-Acrylcarbamaten und N-Arylisocyanaten Preparation of N-Acrylcarbamaten and N-aryl isocyanates |
| 03/28/2007 | CN1935782A Apparatus for preparing high-boiling-point heat-sensitive substance, and its application method |
| 03/22/2007 | WO2007031444A1 Process for the preparation of isocyanates |
| 03/21/2007 | CN1934075A Method for producing (meth)acrylate derivative having isocyanate group |
| 03/21/2007 | CN1931834A Synthesis process of phenyl dimethylene diisocyanate |
| 03/21/2007 | CN1305841C Reprocessing of reaction material discharged from phosgenation reactors |
| 03/21/2007 | CN1305840C Reactive tower special combined with natural circulation evaporator |
| 03/15/2007 | WO2007028715A1 Method for producing isocyanates |
| 03/14/2007 | EP1761483A1 Method for producing isocyanates |
| 03/08/2007 | DE102005042392A1 Verfahren zur Herstellung von Isocyanaten A process for the preparation of isocyanates |
| 03/07/2007 | CN1926096A Method for producing isocyanate compound |
| 03/06/2007 | US7186857 Process for the preparation of di- and polyamines of the diphenylmethane series |
| 03/06/2007 | US7186739 O-succinimidyl-2-[(9H-fluoren-9-ylmethoxy)carbonylamino]-ethylcarbamate's used as monomers active in the synthesis of di- and tri-substituted ureas and urea oligomers |
| 02/22/2007 | WO2007020777A1 Process for producing aliphatic isocyanate having oxyalkylene group |
| 02/22/2007 | US20070043233 Gas-phase phosgenation process |
| 02/21/2007 | EP1754698A2 Process for gas phase phosgenation |
| 02/21/2007 | EP1753715A1 Isocyanate production method |
| 02/20/2007 | US7179935 solvent free; thermal cleavage of carbamic esters into the isocyanate and alcohol; cleavage gases are cooled and condensed using a liquid coolant (which is the product alcohol) before carrying out rectification; hexamethylenedi-n-butylurethane to hexamethylene diisocyante and butanol |
| 02/15/2007 | WO2006130405A3 Process for the preparation of polyisocyanates of the diphenylmethane series |
| 02/08/2007 | DE102005037328A1 Verfahren zur Herstellung von Isocyanaten A process for the preparation of isocyanates |
| 02/08/2007 | DE102005036870A1 Verfahren zur Gasphasenphosgenierung Process for the gas phase phosgenation |
| 02/08/2007 | CA2615537A1 Heterogeneous supported catalytic carbamate process |
| 02/07/2007 | CN1907964A Process for gas phase phosgenation |
| 02/02/2007 | CA2554850A1 Gas-phase phosgenation process |
| 02/01/2007 | WO2005089085A3 Improved color stability of isocyanates |
| 01/25/2007 | WO2007010996A1 Process for production of isocyanate, isocyanate produced by the process, and use of the isocyanate |
| 01/25/2007 | DE102005032430A1 Verfahren zur Herstellung von Toluylendiamin A process for the preparation of toluenediamine |
| 01/24/2007 | EP1746083A1 Process for the production of toluylene diamine |
| 01/24/2007 | EP1745013A1 Method for producing (meth)acrylate derivative having isocyanate group |
| 01/18/2007 | WO2007007887A2 Concentrating method, treating method, concentrating system and treating system for polyisocyanate residues |
| 01/18/2007 | US20070015934 Method for the purification of isocyanates |
| 01/18/2007 | DE102005032663A1 Verfahren zur Herstellung von Isocyanaten A process for the preparation of isocyanates |
| 01/17/2007 | EP1743882A1 Process for the preparation of isocyanates |
| 01/17/2007 | CN1896052A Process for the preparation of isocyanates |
| 01/17/2007 | CN1896047A Process for the preparation of toluenediamine |
| 01/03/2007 | CN1293050C Dead-end polyisocyanic acid ester |
| 12/27/2006 | EP1509496B1 Method for producing isocyanates and reaction apparatus |
| 12/21/2006 | WO2006134137A1 Method for preparing isocyanate adducts |
| 12/21/2006 | DE102005027814A1 Verfahren zur Aufarbeitung von Isocyanataddukten A process for working up isocyanate adducts |
| 12/20/2006 | EP1734035A1 Process for the preparation of 4,4'-diphenylmethane diisocyanate |
| 12/20/2006 | CN1290824C Method for purifying toluene vulcabond by recuperative distilling tower for final purifying |
| 12/14/2006 | WO2006131381A1 Production of n-aryl carbamates and n-aryl isocyanates |
| 12/14/2006 | DE102005026864A1 Verfahren zur Herstellung von 4,4'-Diphenylmethandiisocyanat A process for the preparation of 4,4'-diphenylmethane diisocyanate |
| 12/13/2006 | CN1878749A Aliphatic, cycloaliphatic or (cyclo)aliphatic diisocyanates that are stable in storag |
| 12/13/2006 | CN1876625A Process for the preparation of 4,4'-diphenylmethane diisocyanate |
| 12/13/2006 | CN1289473C Tetralin isocyanates |
| 12/07/2006 | WO2006130405A2 Process for the preparation of polyisocyanates of the diphenylmethane series |
| 12/07/2006 | CA2606107A1 Process for the preparation of polyisocyanates of the diphenylmethane series |
| 11/22/2006 | EP1575907B1 Method for the purification of isocyanates |
| 11/15/2006 | EP1721893A1 Method for producing isocyanate compound |
| 11/09/2006 | US20060252960 Method for the continuous production of isocyanates |
| 11/07/2006 | US7132495 Polyisocyanate compound, method for producing the same, and uses thereof |
| 11/02/2006 | EP1717223A2 Method for the purification of isocyanates |
| 11/01/2006 | CN1854126A Continuous method for manufacturing an acid functional blocked solid isocyanate |
| 10/26/2006 | US20060241319 Subjecting a hydrolyzable chlorine containing (meth)acryloyloxyalkyl isocyanate to mixing treatment with an epoxy compound and an amine at a temperature of from 110 to 160 degrees C. to prepare mixture, and distilling; use in paints and coating materials, adhesives |
| 10/25/2006 | CN1850792A Method for preparing diphenyl methane vulcabond |
| 10/25/2006 | CN1281580C Preparation process of carbamate and preparation process of isocyanate |
| 10/19/2006 | WO2006109576A1 Apparatus for continuously producing polyisocyanate |
| 10/19/2006 | WO2006109416A1 Apparatus for polyisocyanate production and apparatus for gas treatment |
| 10/17/2006 | US7122697 Method for producing carbamates and method for producing isocyanates |
| 10/11/2006 | CN1844091A Process for preparing butyl isocyanate |
| 10/10/2006 | US7118653 From a crude distillation feed comprising toluenediisocyanate, an organic solvent and less than 2% by weight phosgene by separating the crude distillation feed in a dividing-wall distillation column into at least four product fractions |
| 10/05/2006 | WO2006103189A1 Mdi production by means of liquid phase and gas phase phosgenation |
| 10/05/2006 | WO2006103188A1 Mmdi and pmdi production by means of gas phase phosgenation |
| 10/05/2006 | US20060224018 Process for the preparation of di- and polyamines of the diphenylmethane series |
| 10/05/2006 | US20060223966 Reacting primary amines with phosgene in a tube reactor; high selectivity and a high space-time yield, so that the process can be designed in a compact fashion, prevent blockages |
| 10/05/2006 | DE102005014847A1 MMDI und PMDI Herstellung mittels Gasphasenphosegenierung MMDI and PMDI production by Gasphasenphosegenierung |
| 10/05/2006 | DE102005014846A1 MDI Herstellung mittels Flüssigphasen- und Gasphasenphosgenierung MDI production by liquid-phase phosgenation and |
| 10/05/2006 | DE102005014244A1 Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe Process for the preparation of di- and polyamines of the diphenylmethane |
| 10/04/2006 | EP1707557A1 Process for the preparation of (poly)-methylenedi(phenylamine) |
| 10/04/2006 | CN1840521A Diphenylmethane series diamine and polyamine preparation method |
| 10/04/2006 | CN1277811C Process for producing bromo chloro isocyanuric acid and its use |
| 10/03/2006 | CA2163169C A process for the production of polyisocyanates at least partially blocked with 3,5-dimethylpyrazole |