| Patents for C07C 263 - Preparation of derivatives of isocyanic acid (3,065) |
|---|
| 09/19/2002 | DE10111645A1 Verfahren zur Herstellung von organischen Polyisocyanaten Process for the preparation of organic polyisocyanates |
| 09/12/2002 | WO2002070581A1 Method for producing mdi, especially 2,4'-mdi |
| 09/12/2002 | DE10111337A1 Verfahren zur Herstellung von MDI, insbesondere von 2.4'-MDI Process for the preparation of MDI, especially 2,4'-MDI of |
| 09/11/2002 | EP1238968A1 Process for the preparation of organic polyisocyanates |
| 08/28/2002 | EP0937033B1 Process for the isomeric separation of isocyanates |
| 08/13/2002 | US6433219 Reacting aniline with formaldehyde in presence of acid catalyst |
| 07/18/2002 | WO2002055487A2 Method for using a carbamoyl fluoride as fluorinating agent |
| 07/11/2002 | DE10064196A1 Apparatus, for production of toluylene diisocyanate and methylenediphenyl diisocyanate, comprises distillation column and/or container and rotating evaporator |
| 07/10/2002 | CN1087312C Prepn. of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyauates having reduced iodine color number and reduced chlorine content |
| 07/04/2002 | DE10161272A1 Preparation of isocyanate from carbamate, useful e.g. as monomers, by decomposition in presence of compound that scavenges reactive decomposition products |
| 07/03/2002 | CN1356980A Light isocyanates, method for producing them and use thereof |
| 06/27/2002 | WO2002050020A1 Method for producing isocyanates |
| 06/25/2002 | US6410778 Reacting organic diamines or polyamines with urea and/or alkyl carbamates, or mixture of urea, alkyl carbamate and/or dialkyl carbonates, alcohol in presence of a soluble zirconium compound catalyst; thermal decomposition of product |
| 06/11/2002 | CA2064929C A process for the conditioning and/or purification of organic isocyanates |
| 05/30/2002 | WO2002024634A3 Non-phosgene route to the manufacture of organic isocyanates |
| 05/29/2002 | EP1208082A1 Improved method for producing monoisocyanates and oligoisocyanates |
| 05/28/2002 | US6395925 Adding an alcohol or mercaptan to an isocyanate, heating and stripping, distillation and purification |
| 05/21/2002 | US6391161 Dechlorination of isocyanates purifying organic isocyanates or mixtures of isocyanates by reducing the content of chlorine compounds. |
| 05/14/2002 | US6388153 Chain transfer agents |
| 05/02/2002 | US20020052466 Process for reducing the chlorine content of low molecular weight isocyanates |
| 04/18/2002 | US20020045723 Process for the production of ether isocyanates background of the invention |
| 04/11/2002 | WO2002012176A3 Method for lowering the chlorine content in low-molecular isocyanates |
| 03/28/2002 | WO2002024634A2 Non-phosgene route to the manufacture of organic isocyanates |
| 03/27/2002 | EP1189877A1 Method for dehydrogenofluorination of an aromatic carbamoyl fluoride |
| 03/20/2002 | EP1187808A1 Light isocyanates, method for producing them and use thereof |
| 02/28/2002 | US20020025996 Uniform mixing |
| 02/19/2002 | US6348521 Blocked polyisocyanates in solvents and neutralized with amine or ammonia on carboxylic groups |
| 02/14/2002 | WO2002012176A2 Method for lowering the chlorine content in low-molecular isocyanates |
| 02/14/2002 | DE10037772A1 Verfahren zur Absenkung des Chlorgehaltes in niedermolekularen Isocyanaten Method for reducing the chlorine content in low molecular weight isocyanates |
| 02/07/2002 | US20020016496 Catalytic thermal decomposition of carbamates using silicates (clays, zeolites) as catalysts |
| 01/31/2002 | WO2002008173A1 Polyisocyanate particles of controlled particle size |
| 01/31/2002 | DE10032269A1 Verfahren und Vorrichtung zur Verringerung von Nebenprodukten bei der Vermischung von Eduktströmen Method and device for reduction of by-products during the mixing of starting material streams |
| 01/23/2002 | CN1332149A Tolylenediamine and water mixture and use in prep. of toluene vulcabond thereof |
| 01/22/2002 | CA2192424C Novel paclitaxel prodrugs, method for preparation as well as their use in selective chemotherapy |
| 01/10/2002 | WO2002002217A1 Method and device for reducing byproducts in the mixture of educt streams |
| 01/09/2002 | CN1330092A Polyurethane system |
| 01/02/2002 | CN1077122C Blocked polyisocyanate composition and one-pack thermocuring resin composition comprising the same |
| 01/02/2002 | CN1077100C Method of preparing polyisocyanate particles of controlled particle size distribution and non-containing derived impurity |
| 01/02/2002 | CN1077099C Process for preparing isocyanates |
| 12/19/2001 | CN1326927A Synthetic method for closed isocyanate containing alpha-olefinic bond |
| 12/13/2001 | DE10027779A1 Production of isocyanates by reaction of amines and phosgene comprises use of the isocyanate as a solvent in a reactor column with at least partial recycle |
| 12/13/2001 | DE10026142A1 Verfahren und Vorrichtung zur kontinuierlichen Herstellung von organischen Mono- oder Polyisocyanaten Method and apparatus for the continuous production of organic mono- or polyisocyanates |
| 12/06/2001 | WO2001091898A1 Method and device for the continuous production of organic mono or polyisocyanates |
| 12/05/2001 | EP1160239A2 Isocyanate production procedure |
| 11/15/2001 | US20010041810 Process for preparing organic monoisocyanates |
| 11/08/2001 | DE10021742A1 Verfahren zur Herstellung organischer Monoisocyanate A process for the preparation of organic monoisocyanates |
| 11/07/2001 | EP1151991A1 Process for the production of organic monoisocyanates |
| 11/04/2001 | CA2345495A1 Process for preparing organic monoisocyanates |
| 10/23/2001 | US6307096 Method for making aliphatic diisocyanates |
| 10/10/2001 | EP1140822A1 Stable activated novel carbamic acid derivatives, preparation method and use for preparing urea |
| 10/10/2001 | EP1140735A1 Preparation of nuclear chlorinated aromatic compounds |
| 09/27/2001 | US20010025128 Chain transfer agents |
| 09/25/2001 | US6294708 Alpha-methylstyrene dimer derivatives |
| 09/19/2001 | EP0861232B1 Method of producing organic diurethanes and/or polyurethanes and their use in the production of di- and/or polyisocyanates |
| 09/18/2001 | US6290923 Stack emission control system for removing organic pollutants from air |
| 09/13/2001 | US20010021746 Polyetherurethane copolymers |
| 09/07/2001 | WO2001064628A1 Process for the preparation of organic polyisocyanates |
| 09/07/2001 | CA2397683A1 Process for the preparation of organic polyisocyanates |
| 09/05/2001 | CN1070475C Prepn. of isocyanates having light color |
| 09/05/2001 | CN1070474C Process for toluene diisocyanate and specific mixture of tolylene diamine and water and use in prepn. of toluene diisocyanate |
| 08/29/2001 | CN2444949Y Jet reactor for preparation of toluene vulcabond |
| 08/22/2001 | CN1069897C 4,4'-methylene-bis-(3-chloro-2,6-dialkylphenylisocyanates) and polyurethane thereof |
| 08/09/2001 | WO2001056977A1 Integrated process for the preparation of aromatic isocyanates and procedures for effecting the relative intermediate phases |
| 08/09/2001 | CA2434231A1 Integrated process for the preparation of aromatic isocyanates and procedures for effecting the relative intermediate phases |
| 08/07/2001 | US6271414 Prior to the isolation of the crystals, 5 to 40% by weight of the crystals produced are remelted while simultaneously increasing the temperature of the crystal slurry by 4.5 to 9 degrees c. |
| 07/25/2001 | CN1305456A Method for treating distillation residues from synthesis of toluene diisocyanate |
| 07/25/2001 | CN1304927A Method and apparatus for continuously preparing tolylene diisocyanate |
| 07/04/2001 | EP1113003A1 Method for making aliphatic diisocyanates |
| 06/28/2001 | US20010005761 Method of producing organic diurethanes and/or polyurethanes and their use in the production of di-and/or polyisocyanates |
| 06/12/2001 | US6245935 Treating isocyanatoalkyl (meth)acrylate containing a hydrolyzable chloride with an epoxy group-containing compound and an amine and/or an imidazole to reduce content of hydrolyzable chloride in isocyanatoalkyl (meth)acrylate |
| 06/06/2001 | CN1298385A Method for producing mixtures consisting of diphenylmethane diisocyanates and polyphenylene-polymethylene-polyisocyanates containing a reduced amount of chlorinated secondary products |
| 06/05/2001 | US6242530 Used as automotive clearcoats and coil coating lacquers; heat resistance and aging resistance |
| 05/22/2001 | US6235787 Antiinflammatory agents; rheumatic diseases; bone disorders; skin disorders; multiple sclerosis |
| 05/09/2001 | CN1294575A Stabilisation of organic polyisocyanates |
| 05/08/2001 | US6229043 Via phosgenation in presence of inert organic solvent at elevated temperature; then mixture of water and monohydric or polyhydric polyoxyalkylene alcohol is incorporated |
| 05/01/2001 | US6225497 Forming substantially fewer by-products because of faster mixing |
| 04/25/2001 | EP1093452A1 Method for the preparation of organic carbamates |
| 04/25/2001 | CN1064953C Process for preparation of aromatic polyisocyanate compounds in gaseous phase |
| 04/24/2001 | US6222066 Process for decreasing the chlorine content of organic isocyanates |
| 04/24/2001 | US6222065 Amidating 1,5-naphthylenedinitrile; chlorinating 1,5-naphthalenedicarboxylic acid amide; reacting with alcohol to form 1,5-bis(alkoxycarbonylamino)naphthalene; pyrolyzing to form 1,5-naphthalnenediisocyanate |
| 04/11/2001 | EP1090906A1 Mixtures of toluene diamine and water |
| 04/04/2001 | CN1290245A Method for the production of methylenedi (phenylamine) and methylenedi (phenylisocyanate) |
| 03/28/2001 | EP1086075A1 Method for treating distillation residues from the synthesis of toluene diisocyanate |
| 03/28/2001 | EP0938513B1 Polyisocyanates containing tin and method for preparing polyisocyanate-polyaddition products |
| 03/15/2001 | WO2001017951A1 Improved method for producing monoisocyanates and oligoisocyanates |
| 03/14/2001 | EP1082296A1 Stabilisation of organic polyisocyanates |
| 03/08/2001 | DE19942299A1 Verbessertes Verfahren zur Herstellung von Mono- und Oligo-Isocyanaten An improved process for the preparation of mono- and oligo-isocyanates |
| 03/07/2001 | CN1062857C Process for preparation of aliphatic polyisocyanates |
| 03/07/2001 | CN1062856C Process for preparing isocyanates |
| 02/28/2001 | EP1078918A1 Process for the preparation of diisocyanates |
| 02/28/2001 | EP1078669A1 Process and crystallizer for purifying materials or mixtures thereof |
| 02/07/2001 | EP1073628A1 Method for producing mixtures consisting of diphenylmethane diisocyanates and polyphenylene-polymethylene-polyisocyanates containing a reduced amount of chlorinated secondary products and with a reduced iodine colour index |
| 01/25/2001 | DE10034226A1 Production of 1,5-naphthalene diisocyanate, useful for the production of polyurethane elastomers, comprises a four stage reaction sequence using 1,5-naphthalene dinitrile as a starting material |
| 01/11/2001 | WO2001002347A1 Method for dehydrogenofluorination of an aromatic carbamoyl fluoride |
| 01/11/2001 | CA2377753A1 Method for dehydrogenofluorination of an aromatic carbamoyl fluoride |
| 01/04/2001 | WO2001000569A1 Light isocyanates, method for producing them and use thereof |
| 12/28/2000 | DE19928741A1 Preparation of isocyanates, useful for production of urethane compounds, comprises reaction of amine with phosgene having specified bromine and/or iodine content |
| 11/29/2000 | EP1054852A1 Alpha-methylstyrene dimer derivatives |
| 11/23/2000 | DE19922572A1 Verfahren zur Reinigung von organischen Isocyanaten, die so gereinigten organischen Isocyanate und ihre Verwendung A process for the purification of organic isocyanates, the thus-purified organic isocyanates and their use |
| 11/22/2000 | EP1053998A1 Process for the purification of organic isocyanates |