| Patents for C07C 273 - Preparation of urea or its derivatives, i.e. compounds containing any of the groups the nitrogen atoms not being part of nitro or nitroso groups (3,705) |
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| 06/13/2007 | CN1978426A Method for preparing disubstituted urea by carbon dioxide and amide reaction |
| 05/30/2007 | CN1972906A Method of improving the crushing strength and reducing the dust formation and the caking tendency of urea, and urea composition |
| 05/23/2007 | CN1966491A Process for preparing disubstituted urea |
| 05/22/2007 | US7220882 Process for urea production and plant |
| 05/22/2007 | CA2323432C Apparatus for effecting gas/liquid contact |
| 05/22/2007 | CA2300518C Method for modernizing a urea production plant |
| 05/16/2007 | CN1315802C Process for increasing the capacity of a urea plant |
| 05/10/2007 | DE102005054462A1 Method for conditioning on a belt surface for pastillation of urea, comprises washing product residues on steel strip after removal of the solidified pastilles by liquid detergent and drying the detergent on the steel strip |
| 05/03/2007 | WO2007049656A1 Novel fluoroadamantane derivative and method for producing same |
| 05/02/2007 | CN2895414Y Anticorrosive device for urea synthesis tower |
| 05/02/2007 | CN1313443C Method for synthesizing sec-butyl urea |
| 05/02/2007 | CN1313442C Process and plant for the production of area |
| 04/26/2007 | DE102004049774B4 Verfahren zur Herstellung von Harnstoff aus Erdgas A process for the production of urea from natural gas |
| 04/25/2007 | EP1776335A1 Process for urea production from ammonia and carbon dioxide |
| 04/25/2007 | CN1951914A Process for synthesis of symmetrical aryl urea compound |
| 04/25/2007 | CN1951913A Process for the integrated production of urea and melamine |
| 04/24/2007 | CA2264135C Process for the preparation of urea |
| 04/18/2007 | EP1775284A1 Compounds comprising aldimine groups |
| 04/18/2007 | EP1773760A1 Catalytic methods for the production of (meth)acrylates from n-hydroxyalkylated amides |
| 04/17/2007 | CA2407759C Substituted phenylacetamides and their use as glucokinase activators |
| 04/11/2007 | CN1946682A Polymorphic forms of (1-{3-[3-(4-cyano-3-methoxy-phenyl) ureido]-phenyl}-ethyl)-carbamic acid-2-cyano-1-ethyl-ethyl ester |
| 04/11/2007 | CN1946681A Method for producing polyether allophanates using zinc compounds as catalysts |
| 04/11/2007 | CN1944401A Urea plant |
| 04/11/2007 | CN1944363A Method for simultaneously producing methanol, urea and artificial gas |
| 04/10/2007 | CA2246217C Process for combined production of ammonia and urea |
| 04/10/2007 | CA2165898C Process for the synthesis of urea comprising two separate reaction zones |
| 04/05/2007 | WO2007036572A1 Compounds containing aldimine |
| 04/05/2007 | CA2628324A1 Compounds containing aldimine |
| 03/28/2007 | EP1141147B1 Process for synthesis of allophanate compounds and compositions including the product thereof |
| 03/28/2007 | CN1935765A Method for concurrently producing dimethyl ether, liquefied natural gas and urea |
| 03/22/2007 | WO2006052542A3 Arylalkyl ureas as cb1 antagonists |
| 03/21/2007 | EP1763508A1 Process for the preparation of urea |
| 03/21/2007 | CN1931835A Process of extracting citrulline from water melon |
| 03/21/2007 | CN1305839C Phenylglycine derivatives |
| 03/15/2007 | US20070059446 Feeding a urea melt in the form of a film to a fluidized bed of solid urea nuclei, upon which the nuclei grow by solidification of the melt on the nuclei; the weight percentages of water and biuret in the melt and granules have a specific relationship |
| 03/14/2007 | EP1761484A1 Method of improving the crushing strength and reducing the dust formation and the caking tendency of urea, and urea composition |
| 03/13/2007 | CA2226771C Method for increasing the capacity of an existing urea process |
| 03/07/2007 | CN1923802A Double high pressure urea production technology |
| 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 |
| 03/01/2007 | WO2006060602A3 Particle size control for acetylenic agents useful in condition monitoring systems |
| 02/28/2007 | CN1301974C Muller Klaus-helmut |
| 02/22/2007 | US20070043197 Polyurea polymers from secondary polyether polyamines |
| 02/22/2007 | DE102005037750A1 Verfahren zur Herstellung von Harnstoffpellets A process for producing urea pellets |
| 02/20/2007 | US7179941 N-{3-[3-(2-Chloro-4,5-difluorobenzoyl)ureido]-4-methoxyphenyl}acetamide; treating type 2 diabetes |
| 02/15/2007 | US20070037849 1-(2-chloro-4-hydroxyphenyl)-3-cyclopropylurea; angiogenesis neoplasia |
| 02/14/2007 | EP1752447A1 process for the integrated production of urea and melamine |
| 02/14/2007 | CN1300101C Throughput enlarging method for urea production device |
| 02/13/2007 | US7176222 Contacting a base with an enantiomerically pure hydroxyl group containing compound, reacting the product with a nitro, fluoro-containing benzene compound, reducing the product to the corresponding amine |
| 02/08/2007 | US20070032650 Integrated process for urea and melamine production |
| 01/31/2007 | CN1906156A Process for the preparation of urea |
| 01/30/2007 | CA2300720C Method for the simultaneous modernization of a plant for ammonia production and a plant for urea production |
| 01/25/2007 | WO2006121332A8 Method for concentrating an aqueous ammonium carbamate stream |
| 01/24/2007 | CN1902163A Integrated process for urea and melamine production |
| 01/24/2007 | CN1900055A Process for preparing carbamate, urea and their derivatives as well as 2-oxzolidone |
| 01/24/2007 | CN1296351C Installation and process for preparation of urea |
| 01/18/2007 | US20070015755 Novel compounds and compositions as protease inhibitors |
| 01/17/2007 | CN2858645Y Methylamine condenser |
| 01/10/2007 | CN1894300A Synthesis of acylureas and composition comprising acylureas |
| 01/09/2007 | CA2177093C Integrated urea/ammonia process |
| 01/02/2007 | CA2168993C Hydrolysis reactor for removal of urea, ammonia and carbon dioxide from a liquid phase comprising urea in aqueous solution |
| 12/27/2006 | EP1735273A1 Method for producing polyether allophanates using zinc compounds as catalysts |
| 12/20/2006 | CN1879943A Pressure-variable adsorption decarbonization improved process for carbamide and methanol |
| 12/20/2006 | CN1290826C Novel substituted propanamide benzoyl urea derivatives, medicinal composition containg same and use thereof |
| 12/14/2006 | WO2006131381A1 Production of n-aryl carbamates and n-aryl isocyanates |
| 12/13/2006 | EP1731501A1 Method of amidocarbonylation reaction |
| 12/13/2006 | CN1878751A Urea derivative and process for producing the same |
| 12/13/2006 | CN1878608A Process for the preparation of urea granules |
| 12/13/2006 | CN1289474C Plant for urea production |
| 12/12/2006 | CA2279235C Process for preparing urea |
| 12/07/2006 | US20060276675 Biuret- and uretidone- containing ompounds having urethane or carbamate groups; chemical intermediates; polyurethanes; polyureas; polyetherurethane copolymers;flow control agents of epoxy resins and polyepoxides; thixotropic agents; paints;plasticols; coatings; radiation transparent coatings |
| 12/06/2006 | EP1728783A1 Method and apparatus for synthesizing urea |
| 12/06/2006 | EP1727791A1 Polymorphic forms of (1-{3-[3-(4-cyano-3-methoxy-phenyl)ureido]-phenyl}-ethyl)-carbamic acid-2-cyano-1-ethyl-ethyl ester |
| 12/06/2006 | EP1318977B1 Substituted phenylcyclohexane carboxylic acid amides and the use thereof |
| 12/06/2006 | CN1288129C Improved method and apparatus for combined drum granulating large granule urea |
| 11/30/2006 | US20060270872 Reacting aqueous ammonia and CO2; stripping unreacted ammonia and CO2 using raw material CO2; obtaining a condensed liquid by condensing the gas mixture and recycling; and measuring the density of the condensed liquid online using a noncontact type density meter. |
| 11/29/2006 | EP1409448B1 Process for the preparation of (r)- or (s)-aminocarnitine inner salt, the salts and derivatives thereof |
| 11/29/2006 | CN1286805C Acyl-4-carboxyphenylurea derivatives, method for production and use thereof |
| 11/29/2006 | CN1286804C Process for preparing 4,4'-dinitro diphenyl urea |
| 11/23/2006 | WO2006122782A1 N-(2-hydroxyalkanoyl) -n,n'-dialkylureas and a process for their preparation |
| 11/23/2006 | WO2006094541A3 Process for urea production and related plant |
| 11/23/2006 | US20060264673 Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds |
| 11/22/2006 | EP1501815B1 Substituted phenylacetamides and their use as glucokinase activators |
| 11/22/2006 | CN1865484A Two-phase stainless steel for urea-producing plant |
| 11/16/2006 | WO2006121332A1 Method for concentrating an aqueous ammonium carbamate stream |
| 11/16/2006 | CA2606784A1 Method for concentrating an aqueous ammonium carbamate stream |
| 11/14/2006 | US7135502 Colchinol derivatives as vascular damaging agents |
| 11/09/2006 | WO2006118071A1 Apparatus for urea synthesis and method of improving the same |
| 11/09/2006 | WO2006118070A1 Apparatus for urea synthesis |
| 11/09/2006 | WO2006117050A1 Process for urea production and related plant |
| 11/09/2006 | CA2606357A1 Process for urea production and related plant |
| 11/08/2006 | EP1719755A1 Process for urea production and related plant |
| 11/08/2006 | CN1860096A Aminocarbonyl naphthol derivative, cyanonaphthol derivative, and method for producing them |
| 11/08/2006 | CN1283344C Two-sectional variable pressure adsorption and decarbonizing process of recovering hydrogen and nitrogen gas for urea production |
| 11/02/2006 | US20060247471 Process for urea production and plant |
| 11/02/2006 | US20060243671 Method and system for treating waste matter from animals, urea-rich and urea-lean waste-matter products, and uses thereof |
| 11/02/2006 | EP1716111A1 Integrated process for urea and melamine production |
| 11/01/2006 | CN1854128A Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds |
| 11/01/2006 | CN1854127A Process for urea production and plant |
| 10/26/2006 | WO2006112751A1 Carbamide production method and device |
| 10/26/2006 | US20060241110 2-(Imidazol-1-ylalkyl)-3H-quinazolin-4-one derivatives; mitotic kinesin KSP inhibitors; anticarcinogenic, antiinflammatory, and antiproliferative agents |