| 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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| 04/06/2006 | DE102004047921A1 Polyisocyanate mit sterisch anspruchsvollen Phenolen blockiert Blocked polyisocyanates with bulky phenols |
| 04/05/2006 | EP1642889A1 Improved synthesis scheme for lacosamide |
| 04/05/2006 | EP1642888A1 compounds for modulating the rage receptor |
| 04/05/2006 | EP1641887A1 Carbon-substituted methyl amine derivatives and their use as a rheology control agent |
| 04/05/2006 | EP1641746A2 Polyurea polymers from secondary polyether polyamines |
| 04/04/2006 | US7022874 Preparation of biuret-containing polyisocyanates |
| 04/04/2006 | CA2445407C A urea based granule blend for ice-melting and reducing granule caking |
| 04/04/2006 | CA2187222C Method of preparing a carbamate-or urea-functional compound |
| 03/29/2006 | CN1247301C Improved apparatus for decomposition of aminoformate and stripping ammonia and carbon dioxide from urea solution and use life prolonging method |
| 03/28/2006 | US7019171 Particle size control for acetylenic agents useful in condition monitoring systems |
| 03/22/2006 | CN1749242A Method for concentrating thin urine using falling film type evaporation heater |
| 03/22/2006 | CN1246287C Binaphthol derivative and method for producing same |
| 03/22/2006 | CN1246225C Method for producing ammonia on the basis of a nitrogen-hydrogen mixture from natural gas |
| 03/15/2006 | EP1634869A1 Integrated process for urea/melamine production and related plant |
| 03/15/2006 | CN1746154A Integrated process for urea/melamine production and related plant |
| 03/15/2006 | CN1245394C Substituted phenylacetamides and their use as glucokinase activators |
| 03/09/2006 | WO2005070882A3 Synthesis of acylureas and composition comprising acylureas |
| 03/09/2006 | US20060052637 Integrated process for urea/melamine production and related plant |
| 03/08/2006 | CN2763271Y Hydrogen peroxide anticorrosion apparatus for urea evaporating system |
| 03/01/2006 | CN1243727C Method for improving industrial producing urea apparatus |
| 02/22/2006 | CN1738793A Compounds, compositions and methods |
| 02/22/2006 | CN1736983A N-phenyl formamide-acrylamide and its synthesis method |
| 02/22/2006 | CN1736531A Method for treating decomposed gas by low resistance vertical calandria type absorptive condenser |
| 02/16/2006 | CA2575537A1 Process for urea production from ammonia and carbon dioxide |
| 02/15/2006 | EP1626042A1 Process for urea production from ammonia and carbon dioxide |
| 02/15/2006 | CN1733710A Throughput enlarging method for urea production device |
| 02/15/2006 | CN1241911C Process for the preparation of urea |
| 02/15/2006 | CN1241910C Process for the preparation of urea |
| 02/01/2006 | EP1620393A1 Process for the preparation of a urea and formaldehyde-containing aqueous solution |
| 02/01/2006 | CN1727331A Equipment of preparing birueal by using carbamide as raw material |
| 01/31/2006 | US6991746 Polymeric allophanates of diphenylmethane diisocyanate, perpolymers of these polymeric allophanates, and processes for the preparation of the polymeric allophanates and the prepolymers thereof |
| 01/31/2006 | CA2148783C Process for the production of light-stable polyisocyanates containing allophanate groups |
| 01/24/2006 | CA2197803C Method for restoring the functionality of equipment subjected to heavy corrosion in a plant for the production of urea |
| 01/18/2006 | EP1615878A2 Compounds, compositions and methods |
| 01/18/2006 | EP1377541B1 Method for the production of urea |
| 01/18/2006 | CN1721396A Hydrolysis and desorption process |
| 01/17/2006 | US6987190 Reacting glyoxal and urea; sustained release fertilizer |
| 01/12/2006 | WO2006004412A1 Method of improving the crushing strength and reducing the dust formation and the caking tendency of urea, and urea composition |
| 01/12/2006 | WO2006004395A1 Process for the preparation of urea |
| 01/12/2006 | CA2569711A1 Process for the preparation of urea |
| 01/10/2006 | USRE38934 Method and reagents for N-alkylating ureides |
| 12/29/2005 | US20050288529 coupling melamine chemical reactors to compressors, high-pressure synthesis, recovery and optionally granulation segments, used fro urea sysnthesis |
| 12/28/2005 | CN1233624C Improved method of purifying gas containing urea dust |
| 12/14/2005 | CN1231460C Process for the preparation of (R)-or (S)-aminocarnitine inner salt, the salts and derivatives thereof |
| 12/01/2005 | WO2005082862A3 Benzimidazolyl derivatives as kinase inhibitors |
| 11/24/2005 | US20050261524 reacting at least one corresponding amine with phosgene in the presence of an aqueous inorganic base at a temperature in the range from 0 to 150 degrees C; high space-time yield; continuous reaction |
| 11/23/2005 | CN1699349A Method and reagents for N-alkylating ureides |
| 11/23/2005 | CN1228318C New benzoyl urea compound and its synthesis and application |
| 11/23/2005 | CN1228238C Gasifying process for production of ammonia and urea |
| 11/22/2005 | CA2174016C Method and apparatus for recovering condensables in vapor from a urea vacuum evaporator |
| 11/17/2005 | US20050256339 Process and plant for the production of area |
| 11/16/2005 | EP1594820A2 Process and plant for the production of area |
| 11/16/2005 | CN1697826A Process and plant for the production of area |
| 11/15/2005 | CA2361054C Process for the preparation of urea |
| 11/09/2005 | CN1226283C Vaporizing system vacuumizing method for urea production |
| 11/08/2005 | CA2063638C Urea production process of high energy efficiency |
| 11/03/2005 | WO2005102992A1 Process for the preparation of urea from carbon dioxide and ammonia in a urea plant |
| 10/27/2005 | US20050239879 Polymorphic forms of (1-{3-[3-(4-cyano-3-methoxy-phenyl) ureido]-phenyl}-ethyl)-carbamic acid-2-cyano-1-ethyl-ethyl ester |
| 10/26/2005 | CN2736358Y Medium pressure absorption tower for producing urea |
| 10/25/2005 | CA2242177C Fluorocarbon-containing isocyanate derivatives and soil-resist agents |
| 10/20/2005 | WO2005097737A1 Method for producing polyether allophanates using zinc compounds as catalysts |
| 10/19/2005 | CN1683318A Synthetic method for 3, 5-dichloro-2, 4-difluoronitrobenzene and teflubenzuron |
| 10/19/2005 | CN1223580C Process for preparation of urea |
| 10/13/2005 | WO2005095333A1 Polymorphic forms of (1-{3-[3-(4-cyano-3-methoxy-phenyl)ureido]-phenyl}-ethyl)-carbamic acid-2-cyano-1-ethyl-ethyl ester |
| 10/13/2005 | CA2560818A1 Polymorphic forms of (1-{3-[3-(4-cyano-3-methoxy-phenyl)ureido]-phenyl}-ethyl)-carbamic acid-2-cyano-1-ethyl-ethyl ester |
| 10/12/2005 | CN1680302A Method for preparing 2-hydroxy-6-ureidocarbonyl naphthalene derivative |
| 10/12/2005 | CN1680301A Production of o-chlor-benzoylurea from tobacco stalks |
| 10/12/2005 | CN1222354C Carbamate condensation unit |
| 10/11/2005 | US6953865 reacting (R)- or (S)- nitryloxycarnitine with sodium azide; hydrogenation to the intermediate azidocarnitine of same configuration; no isolation |
| 10/06/2005 | US20050222365 Process for preparing polyether allophanates using zinc compound catalysts |
| 10/05/2005 | CN1221530C Method for production of urea |
| 09/29/2005 | US20050215794 Group IB compounds used as condensation, amination, amidation or arylation catalysts; catalysis; efficiency; forming a carbon-carbon bond between a reactant comprising a nucleophilic carbon atom, e.g., enolate or malonate anion, and activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate |
| 09/22/2005 | US20050209338 Phenethanolamine derivatives for treatment of respiratory diseases |
| 09/21/2005 | CN1671653A Process for increasing the capacity of a urea plant |
| 09/21/2005 | CN1219755C Process for decomposing a carbamate, aqueous solution coming from the urea recovery section of a urea production plant |
| 09/20/2005 | CA2285119C Retroviral protease inhibiting compounds |
| 09/15/2005 | WO2005085180A1 Method of amidocarbonylation reaction |
| 09/14/2005 | CN1668582A Method for the continuous production of tetra-substituted ureas |
| 09/09/2005 | WO2005082862A2 Benzimidazolyl derivatives as kinase inhibitors |
| 09/09/2005 | CA2557398A1 Benzimidazolyl derivatives as kinase inhibitors |
| 09/07/2005 | CN1665777A Plant for urea production |
| 09/01/2005 | WO2005080321A1 Integrated process for urea and melamine production |
| 09/01/2005 | US20050192442 reacting 2-hydroxy-6-aminocarbonyl naphthalene and an isocyanate in an organic solvent at a temperature of 90-200 degrees C.; high speed, high yields |
| 09/01/2005 | CA2553794A1 Integrated process for urea and melamine production |
| 08/31/2005 | EP1140809B1 New biphenyl and biphenyl-analogous compounds as integrin antagonists |
| 08/31/2005 | CN1660795A Method for synthesizing sec-butyl urea |
| 08/24/2005 | CN1657527A Joint process for preparing melamine and liquid urea |
| 08/24/2005 | CN1216041C Process and plant for production of urea |
| 08/18/2005 | DE10215908B4 Acyl-3-carboxyphenyl-harnstoffderivate und deren Verwendung als Arzneimittel Acyl-3-carboxy-phenyl-urea derivatives and their use as medicaments |
| 08/17/2005 | EP1564206A1 Method for preparing 2-hydroxy-6-ureidocarbonyl naphthalene derivative |
| 08/10/2005 | EP1333792A4 Novel coupler for use in oxidative hair dyeing |
| 08/09/2005 | US6926869 Apparatus for carbamate decomposition and ammonia and carbon dioxide stripping from urea solutions capable of 180 degree inversion about a horizontal axis |
| 08/03/2005 | CN1649859A Substituted phenylacetamides and their use as glucokinase activators |
| 07/27/2005 | CN1646486A Acyl-3-carboxyphenylurea derivatives, method for production and use thereof |
| 07/27/2005 | CN1646485A Acyl-4-carboxyphenylurea derivatives, method for production and use thereof |
| 07/27/2005 | CN1212313C Process for prepation of urea |
| 07/26/2005 | US6921838 Process for the preparation of urea |
| 07/26/2005 | CA2249344C Safety process for pressure equipment in contact with corrosive fluids |
| 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 |