| Patents for C07C 263 - Preparation of derivatives of isocyanic acid (3,065) |
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| 04/29/2009 | CN101421326A Process for preparing polyurethanes |
| 04/28/2009 | US7524405 Method for separating out solvent from a reaction mixture resulting from an isocyanate synthesis and for purifying this solvent |
| 04/22/2009 | EP2049675A1 Process for preparing pentamethylene 1,5-diisocyanate |
| 04/22/2009 | EP2049470A1 Method for producing organic isocyanates |
| 04/22/2009 | CN101415671A Diphenylmethane isocyanate composition |
| 04/21/2009 | US7521576 Process for the distillation of a mixture of isomeric diisocyanatodiphenyl-methanes |
| 04/08/2009 | EP2044009A1 Method for producing isocyanates |
| 04/08/2009 | CN100475783C Process for the preparation of diisocyanates |
| 04/08/2009 | CN100475782C Stabilized (meth)acryloyloxyalkyl isocyanate, a process for stabilization thereof and a process for preparation of the same |
| 04/01/2009 | EP2042485A1 Process for fractionating a mixture of polyisocyanates |
| 03/26/2009 | WO2009037179A1 Process for preparing isocyanates |
| 03/26/2009 | WO2009037088A1 Process for the production of di- and polyamines of the diphenylmethane series |
| 03/25/2009 | EP2038212A1 Process for the oxidation of a gas containing hydrogen chloride |
| 03/18/2009 | EP2036884A1 Process for producing fluorinated isocyanates and carbamates |
| 03/18/2009 | CN101386585A Method for preparing diisocyanate by heat decomposition |
| 03/18/2009 | CN101386584A Process for controlling a production process |
| 03/18/2009 | CN100469439C Catalyst for synthesizing cyclohexyl amino methyl formate |
| 03/17/2009 | US7504533 Process for the production of isocyanates |
| 03/12/2009 | DE102006036007B4 Rückspaltung von Polyurethanen Cleavage of polyurethanes |
| 03/05/2009 | WO2009027418A1 Method for the production of isocyanates |
| 03/05/2009 | WO2009027234A1 Method for producing isocyanates |
| 03/05/2009 | WO2009027232A1 Method for producing isocyanates |
| 02/26/2009 | WO2009024407A1 Process for preparing polyaromatic polyisocyanate compositions |
| 02/26/2009 | WO2009023989A1 Jet reactor with flow ducts and process for preparing isocyanates using it |
| 02/26/2009 | WO2009002900A3 System and process for production of toluene diisocyanate |
| 02/26/2009 | US20090054684 Processes for preparing low-chlorine isocyanates |
| 02/25/2009 | EP2028206A1 Polyaromatic polyisocyanate compositions |
| 02/25/2009 | EP2028179A1 Production of isocyanates with low chlorine content |
| 02/25/2009 | EP2028178A1 Manufacture of isocyanates with low chlorine content |
| 02/25/2009 | CN101374802A Method for producing isocyanates |
| 02/25/2009 | CN101372464A Processes for preparing low-chlorine isocyanates |
| 02/25/2009 | CN101372463A Draft tube type jet flow reactor and method for preparing isocyanate using the same |
| 02/24/2009 | US7495124 Process for the production of very pure 2,4′-methylenediphenyl diisocyanate |
| 02/22/2009 | CA2638942A1 Processes for preparing low-chlorine isocyanates |
| 02/18/2009 | EP2024278A1 Method for the coupled production of chlorine and isocyanates |
| 02/18/2009 | CN101370767A Process for simultaneously preparing 4,4'-diphenylmethanediamine and diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates |
| 02/18/2009 | CN101367936A Alkyl xylol type cyanate resin, preparation and uses thereof |
| 02/18/2009 | CN101367935A Alkyl diphenyl ether type cyanate resin, preparation and uses thereof |
| 02/10/2009 | US7488842 reaction of the corresponding amines with phosgene in the gas phase; reaction mixture is passed through a zone having a reduced flow cross section between the reaction zone and the zone into which the liquid is sprayed |
| 02/04/2009 | CN101357898A Process for preparing n-butyl isocyanate |
| 02/04/2009 | CN101357316A Three-film co-current reactor and method for preparing isocyanate using the reactor |
| 01/29/2009 | WO2009013303A1 Continuous method for the production of isocyanates |
| 01/29/2009 | WO2009013062A1 Process for the synthesis of carbamates using co2 |
| 01/28/2009 | CN101356153A Method for producing liquid, storage-stable organic isocyanates comprising carbodiimide and/or uretonimine groups |
| 01/27/2009 | US7482481 Method for producing isocyanates |
| 01/21/2009 | CN101348446A Phosgene removing method for TDI production |
| 01/14/2009 | EP2013258A1 Process for preparing polyurethanes |
| 01/07/2009 | EP2011782A1 Process for the synthesis of carbamates using co2 |
| 01/07/2009 | CN101337189A Solid acid catalyst and use thereof in synthesizing 1,6-hexamethylene diisocyanate |
| 01/01/2009 | US20090005589 System and process for production of toluene diisocyanate |
| 12/31/2008 | WO2009002900A2 System and process for production of toluene diisocyanate |
| 12/31/2008 | CA2814838A1 System and process for production of toluene diisocyanate |
| 12/31/2008 | CA2691661A1 System and process for production of toluene diisocyanate |
| 12/30/2008 | CA2258194C Process for the phosgenation of amines in the gas phase using microstructure mixers |
| 12/11/2008 | WO2008148631A1 Process for the preparation of di- and polyamines of the diphenylmethane series |
| 12/10/2008 | EP2000459A1 Process for the preparation of di-and polyamines of the diphenylmethane series |
| 12/10/2008 | CN101318913A Method for preparing parachlorobenzyl isocyanic ester |
| 12/10/2008 | CN100441565C Polymeric N-acetoacetanilide azo colorants |
| 12/04/2008 | WO2008144987A1 Preparation of isocyanate-containing alkyl silane |
| 11/27/2008 | WO2008143207A1 Process for the production of ethylenically unsaturated isocyanate bearing ether linkage |
| 11/19/2008 | EP1992592A2 Method for oxidising a gas mixture containing hydrogen chloride |
| 11/19/2008 | CN100434417C Process for the preparation of highly pure 2,4'-methylenediphenyldiisocyanate |
| 11/12/2008 | CN101302174A Method for producing isocyanate |
| 11/06/2008 | WO2008131873A1 Condensation-adsorption process for removing organic components from a gaseous stream containing hydrogen chloride |
| 11/06/2008 | WO2008131870A1 METHOD FOR THE OXIDATION OF CARBON MONOXIDE IN A GAS STREAM CONTAINING HCl |
| 11/06/2008 | WO2007117404A3 Methods and materials for preparing organic compounds from primary amines |
| 11/06/2008 | US20080275269 Acid-catalyzed condensation of aniline with formaldehyde, phosgenation of the resulting polyamine mixtures; distillative separation of diisocyanates and polyisocyanates; transferring by container to a second remote site; distillation or crystallization of pure 4,4'-MDI; cost efficiency; storage stability |
| 11/06/2008 | DE102007020444A1 Verfahren zur Oxidation eines Chlorwasserstoffenthaltenden Gasgemisches A process for the oxidation of a hydrogen chloride-containing gas mixture |
| 10/30/2008 | US20080269515 Process for the oxidation of a gas mixture containing hydrogen chloride |
| 10/30/2008 | DE102007020096A1 Verfahren zur Oxidation von Kohlenmonoxid in einem HCI enthaltenden Gasstrom A process for the oxidation of carbon monoxide in a gas stream containing HCI |
| 10/29/2008 | CN101293636A Method for oxidising a gas mixture containing hydrogen chloride |
| 10/23/2008 | US20080262263 Separation monomers from diisocyanates; mixture of high viscosity liquid and solid ; controlling temperature and pressure; force transferring |
| 10/22/2008 | CN100427463C Apparatus for preparing high-boiling-point heat-sensitive substance, and its application method |
| 10/15/2008 | EP1979306A1 Process for simultaneously preparing 4,4'-diphenylmethanediamine and diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates |
| 10/14/2008 | US7435853 Process for the production of di- and polyamines of the diphenylmethane series |
| 10/09/2008 | WO2008120645A1 Method for production of isocyanate using composition comprising carbamic acid ester and aromatic hydroxy compound, and composition for transport or storage of carbamic acid ester |
| 10/09/2008 | US20080249332 Continuous processing; reacting polyamines with carbonic acid and alcohol; forming low molecular weight polyurethanes; splitting; separation |
| 10/08/2008 | EP1976825A1 Method for producing isocyanates |
| 10/07/2008 | US7431804 Method for carrying out the distillation or reactive distillation of a mixture containing at least one toxic constituent |
| 10/01/2008 | EP1973869A1 Method for producing liquid, storage-stable organic isocyanates comprising carbodiimide and/or uretonimine groups |
| 10/01/2008 | CN101274904A Preparation for 3, 4-dichloro phenyl isocyanate |
| 09/24/2008 | CN101273010A Method for purifying residues containing isocyanates |
| 09/24/2008 | CN101269342A ZnO/SBA-15 composite nano-catalyst, preparation method and application thereof |
| 09/18/2008 | US20080228006 Contacting isocyanates with a water-containing inert gas flow or an organic material having a cation-exchanging effect; suitable for temperature-sensitive isocyanates; disruptive chlorine compounds can be removed selectively, under controllable and mild conditions and with byproducts inhibition |
| 09/18/2008 | US20080227999 Reacting organic carbonates with aromatic amine or urea in the presence of a catalyst; high yields, efficiency; employed in the manufacture of isocyanates |
| 09/17/2008 | CN101268113A Method for the production of polyisocyanates |
| 09/10/2008 | CN101263109A Process for the preparation of isocyanates |
| 09/09/2008 | US7423171 One-step catalytic process for the synthesis of isocyanates |
| 09/04/2008 | WO2008064887A8 A bislactamamide derivative as intermediate in the production of di i socyanate |
| 09/04/2008 | US20080210132 Easily application to substrates in molten state; copolymerization of such as polycarbonate polyol, sebacic acid derived polyester polyol and 4,4'-diphenylmethane diisocyanate |
| 09/03/2008 | EP1440055B1 Method for production of isocyanates |
| 09/03/2008 | CN101258127A Method for producing isocyanates |
| 09/02/2008 | US7420080 Phosgene-free; reacting a cycloaliphatic diamine with a carbonic acid derivative and an alcohol to produce a cycloaliphatic diurethane, distillation, thermally cleaving the cycloaliphatic diurethane to produce a cycloaliphatic diisocyanate, recycling reurethanization product directly into the low-boiler |
| 08/26/2008 | US7417163 Process for preparing high purity (meth) acryloyloxyalkyl isocyanate |
| 08/21/2008 | US20080200722 Vapor phase reaction of diamines and phosgene; separation of hydrogen chloride |
| 08/21/2008 | US20080200721 Forming diphenylmethane diisocyanate; reacting aniline with formaldehyde; separation of raw materials; phosphonation |
| 08/20/2008 | EP1893564B1 Method for preparing isocyanate adducts |
| 08/20/2008 | CN101245036A Chemical synthesis method for octadecyl isocyanic ester |
| 08/14/2008 | US20080194787 Solvent-free reaction of polyisocyanate containing uretdione groups and monomeric, oligomeric and/or polymeric polyol in the presence of an organotin compound and a monocarboxylic, dicarboxylic or polycarboxylic acid; butyltin tris(2-ethylhexanoate) and/or dibutyltin dilaurate and adipic acid |
| 08/06/2008 | CN101238096A Method for producing diisocyanates |