| Patents for C07C 265 - Derivatives of isocyanic acid (3,263) |
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| 11/30/2005 | CN1229177C Distillation or reaction distillation comprising at least one toxic constituent |
| 11/29/2005 | CA2508471A1 Multistage continuous preparation of cycloaliphatic diisocyanates |
| 11/23/2005 | CN1228316C Chemical synthesis of p-methoxyphenyl isocyanate |
| 11/10/2005 | WO2005082858A3 Isoquinoline derivatives |
| 11/10/2005 | US20050250960 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 |
| 11/09/2005 | EP1593669A1 Multi-step process for the continuous preparation of cycloaliphatic diisocyanates |
| 11/07/2005 | CA2506401A1 Multistage continuous preparation of cycloaliphatic diisocyanates |
| 10/27/2005 | US20050240054 Production of di- and polyisocyanates of the diphenylmethane series with defined acidity |
| 10/26/2005 | EP1587785A1 Method for the production of isocyanates |
| 10/26/2005 | CN1687022A Method for synthesizing p-phenylene diisocyanate |
| 10/25/2005 | CA2242177C Fluorocarbon-containing isocyanate derivatives and soil-resist agents |
| 10/19/2005 | CN1684942A Reprocessing of reaction material discharged from phosgenation reactors |
| 10/18/2005 | CA2117511C N-cyanoaryl-nitrogen heterocycles |
| 10/12/2005 | CN1680299A Production of di- and polyisocyanates of the diphenylmethane series with defined acidity |
| 10/06/2005 | WO2005092842A1 Method for producing (meth)acrylate derivative having isocyanate group |
| 10/06/2005 | US20050222453 Method for producing isocyanates |
| 10/06/2005 | US20050222291 While reducing amounts of components such as 2,2'-MDI, solvent residues and phenyl isocyanates to level such that these no longer interfere in production of polyurethanes; reacting aniline and formaldehyde in presence of acid catalyst to form diamines and polyamines, phosgenating 2-nuclear diamines |
| 10/05/2005 | EP1259480B1 Process for the preparation of organic polyisocyanates |
| 10/05/2005 | CN1221504C Perfluoroisopropylbenzene derivatives |
| 09/28/2005 | CN1675175A Moderate-pressure gas phase phosgenation |
| 09/21/2005 | EP1575907A1 Method for the purification of isocyanates |
| 09/21/2005 | EP1575905A1 Method for separating isocyanates out from a reaction mixture |
| 09/21/2005 | EP1575904A1 Method for the continuous production of isocyanates |
| 09/15/2005 | WO2005085186A1 Method for producing isocyanate compound |
| 09/15/2005 | US20050203311 Heat exchanger plates through which a heat transfer medium flows and have a geometry defined by the ratio of the degassing area to the volume and arrangement of the heating surfaces which makes it possible for the cleavage to be carried out in a two-phase mixture |
| 09/15/2005 | DE19922996B4 Cycloaliphatische Nonadecenyl- und Nonadecyldiisocyanate, Verfahren zu deren Herstellung und deren Verwendung zur Herstellung von PU-Präpolymeren und -Polymeren Cycloaliphatic Nonadecenyl- and Nonadecyldiisocyanate, processes for their preparation and their use for the production of PU prepolymers and polymers |
| 09/14/2005 | EP1574495A1 Adamantane derivatives |
| 09/14/2005 | EP1574494A1 Adamantane derivative |
| 09/14/2005 | CN1668581A Lysin ester triisocyanate and method for production thereof |
| 09/14/2005 | CN1666979A Process for producing bromo chloro isocyanuric acid and its use |
| 09/14/2005 | CN1218934C Method for producing isocyanates |
| 09/09/2005 | WO2005082858A2 Isoquinoline derivatives |
| 09/09/2005 | CA2555720A1 Isoquinoline derivatives |
| 08/31/2005 | CN1660793A Process for the preparation of highly pure 2, 4'-methylenediphenyldiisocyanate |
| 08/31/2005 | CN1216681C Method and device for continuous production of organic mono of polyisocyanates |
| 08/25/2005 | DE102004005320A1 Herstellung von Di- und Polysocyanaten der Diphenylmethanreihe mit definierter Acidität Preparation of di- and Polysocyanaten of the diphenylmethane series having a defined acidity |
| 08/25/2005 | DE102004005319A1 Verfahren zur Herstellung von hochreinem 2,4'-Methylendiphenyldiisocyanat A process for the preparation of highly pure 2,4'-methylenediphenyl |
| 08/17/2005 | CN1656062A Method for producing isocyanates |
| 08/16/2005 | US6930199 preparation of isocyanates in the gas phase in which the possibilities for back-mixing and byproduct formation are reduced by improving the mixing of the starting materials in a tubular reactor |
| 08/16/2005 | US6929685 Alkylamine derivatives as antifouling agents |
| 08/10/2005 | EP1561746A2 Process for the preparation of highly pure 2,4'-methylenediphenyldiisocyanate |
| 08/10/2005 | EP1561745A2 Process for the preparation of di- and polyisocyanates of the diphenylmethane series with defined acidity |
| 08/10/2005 | CN1653041A Tetralin isocyanates |
| 08/10/2005 | CN1651406A Process for the preparation of diisocyanates |
| 08/03/2005 | EP1476234B1 Reaction column in a special combination with a circulation evaporator |
| 08/02/2005 | US6924385 Method for synthesis of aliphatic isocyanates from aromatic isocyanates |
| 07/27/2005 | CN1212312C Synthesis method of 1,5-naphthalene diisocyanate |
| 07/21/2005 | US20050159585 Forming acyl azide function on acid group of amino acid derivative, then transforming to isocyanate |
| 07/21/2005 | US20050159584 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 |
| 07/21/2005 | US20050159495 Toluene diisocyanate tar fluidizer and method of use |
| 07/21/2005 | DE10359627A1 Verfahren zur Herstellung von Diisocyanaten A process for the preparation of diisocyanates |
| 07/20/2005 | EP1555258A1 Preparation of di- and/or triisocyanates |
| 07/20/2005 | EP1160239B1 Isocyanate production procedure |
| 07/20/2005 | CN1642901A Process for the production of diaminodiphenylmethane and its higher homologues |
| 07/14/2005 | US20050154227 Method for producing isocyanates |
| 07/13/2005 | CN1636972A Process for the preparation of isocyanates in the gas phase |
| 07/13/2005 | CN1636966A Process for the preparation of diamines and polyamines of the diphenylmethane series |
| 07/07/2005 | WO2005061445A1 Methods for carbon isotope labeling synthesis by rhodium-promoted carbonylation via isocyanate using azides and carbon-isotope monoxide |
| 06/29/2005 | EP1546091A1 Reprocessing of reaction material discharged from phosgenation reactors |
| 06/23/2005 | US20050137417 preparation of isocyanates in the gas phase in which the possibilities for back-mixing and byproduct formation are reduced by improving the mixing of the starting materials in a tubular reactor |
| 06/21/2005 | CA2202021C Mixtures of cycloaliphatic diisocyanates, a process for their preparation and their use for the production of polyisocyanate addition products |
| 06/15/2005 | EP1095027B1 Substituted phenyl uracils |
| 06/15/2005 | CN1626509A Organic multiple isocyanate compsn. |
| 06/08/2005 | EP1538143A1 Lysin ester triisocyanate and method for production thereof |
| 06/08/2005 | CN1623979A Process for synthesizing omega amine polyoxyvinyl |
| 06/02/2005 | DE10350816A1 Production of a low monomer-content, low viscosity mixture containing polymethylene polyphenylene polyisocyanates for polyurethane foam production comprises distillative separation |
| 06/02/2005 | DE10348380A1 Mit sekundären Aminen blockierte Polyisocyanate mit Biuretstruktur Secondary amines were blocked polyisocyanates with biuret |
| 05/31/2005 | US6900348 Reacting pure phospgene with amine |
| 05/26/2005 | US20050113601 Process for preparing isocyanates in the gas phase |
| 05/26/2005 | US20050113567 Chemical intermediates for agricultural chemical of perfluoroisopropyl benzene derivtives and raw materials and agricultural compounds |
| 05/26/2005 | US20050113557 Reacting nitrobenzene and methanol to form aniline and formaldehyde in presence of catalyst, then converting aniline and formaldehyde to diamine or polyamine in the presence of an hydrochloric acid catalyst; for production of di-/poly- isocyanates via phosgenation |
| 05/25/2005 | EP1532107A1 Moderate-pressure gas phase phosgenation |
| 05/25/2005 | DE10349504A1 Verfahren zur Herstellung von Isocyanaten in der Gasphase A process for the preparation of isocyanates in the gas phase |
| 05/25/2005 | CN1620329A Reactive tower special combined with natural circulation evaporator |
| 05/24/2005 | US6896401 Mixing reactant streams to produce a product stream using a mixing configuration having a number of reactant feed points, an excess component stream of one reactant is divided into two reactant substreams and fed into the suction region of mixing |
| 05/19/2005 | US20050107565 Polyisocyanates with biuret structure, blocked with secondary amines |
| 05/18/2005 | CN1616418A Polyisocyanates with biuret structure, blocked with secondary amines |
| 05/18/2005 | CN1202152C Process for the continous production of polyisocyanates |
| 05/17/2005 | CA2335068C Method for treating distillation residues from the synthesis of toluene diisocyanate |
| 05/04/2005 | CN1611488A Novel polyisocyanate compound, method for producing the same, and uses thereof |
| 04/27/2005 | EP1526129A1 Process for the preparation of isocyanates in the gas phase |
| 04/27/2005 | CN1610711A Method for producing MDI, especially 2, 4'-MDI |
| 04/27/2005 | CN1609597A Method and device for determining the isomer composition in isocyanate production processes |
| 04/20/2005 | EP1524284A2 Polyisocyanates with biuretstructure blocked with secondary amines |
| 04/20/2005 | EP1524260A1 Process for the preparation of di- and polyamines of the diphenyl methane series |
| 04/20/2005 | CN1607201A Method for the stereoselective synthesis of cyclic amino acids |
| 04/20/2005 | CN1197643C Method for reducing byproducts in the mixture of reactant stream |
| 04/17/2005 | CA2485156A1 Polyisocyanates with biuret structure, blocked with secondary amines |
| 03/31/2005 | US20050070734 Production of isocyanates in the gaseous phase |
| 03/30/2005 | EP1518874A1 Polymeric MDI having low monomer content |
| 03/30/2005 | CN1194962C Method and apparatus for continuously preparing tolylene diisocyanate |
| 03/29/2005 | CA2178750C Process for preparing isocyanates |
| 03/24/2005 | DE102004041344A1 Neuartige Polyisocyanatverbindung, Verfahren zur Herstellung derselben und Verwendungen davon Novel polyisocyanate compound, processes for making them and uses thereof |
| 03/17/2005 | DE10338511A1 Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten Multistage process for continuously preparing cycloaliphatic diisocyanates |
| 03/17/2005 | DE10338509A1 Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten Multistage process for continuously preparing cycloaliphatic diisocyanates |
| 03/17/2005 | DE10338508A1 Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten Multistage process for continuously preparing cycloaliphatic diisocyanates |
| 03/15/2005 | US6867324 Phosgenation of amines where the reaction product is removed in a closed loop and the starting material streams come into contact with one another according to the countercurrent principle. |
| 03/09/2005 | EP1512682A1 Multi-step process for the continuous preparation of cycloaliphatic diisocyanates |
| 03/09/2005 | EP1512681A1 Multi-step process for the continuous preparation of cycloaliphatic diisocyanates |
| 03/09/2005 | EP1512680A1 Multi-step process for the continuous preparation of cycloaliphatic diisocyanates |