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WO/2007/036572A1 |
The invention relates to compounds of formula (I) which contain aldimine, and to the use thereof. Said compounds which contain aldimines are characterised in that they are odour-less and during hydrolysis the odour-free aldehydes are sep...
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WO/2007/029155A2 |
The present invention relates to an improved process for preparing pure celiprolol base in monohydrate form by crystallizing crude celiprolol base in one or more carboxylic acid ester solvents and its conversion to pharmaceutically accep...
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WO/2006/131381A1 |
The invention relates to a method for producing N-aryl carbamates (urethanes) and N-aryl isocyanates. According to said method, aromatic nitro compounds are subjected to a reductive carbonylation in the presence of carbon dioxide and org...
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WO/2006/122782A1 |
N-(2-hydroxyalkanoyl) -N, N' -dialkylureas of general formula (I) are described A-X-(A)n, where A: m = 0 or m = 1; when m = 0, X = R''', where R''' is an aliphatic, cycloaliphatic, arylaliphatic radical, C1-C18; when m = 1, X = -(CH2)n-,...
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WO/2006/121332A1 |
The invention relates to a method for concentrating an aqueous ammonium carbamate stream, which has been formed in a process for the preparation of urea, has a pressure between 0.20 MPa and 0.9 MPa, a temperature between 35 °C and 95 °...
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WO/2006/118071A1 |
In an apparatus for synthesizing urea and a method of improving the same, it becomes possible to provide a heavy condenser at a relatively low position and, further, it becomes possible to overcome the problems caused by passing a proces...
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WO/2006/117050A1 |
A process for urea production from ammonia and carbon dioxide, in which part of the aqueous solution comprising urea, ammonium carbamate and ammonia obtained in a urea synthesis section is subjected to dissociation in a treatment section...
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WO/2006/118070A1 |
In an apparatus for synthesizing urea, it is avoided to pass downward a urea synthesis solution, which is a two-phase gas-liquid stream, and the stream is stabilized as such (i.e., as being the two-phase gas-liquid stream) to enable smoo...
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WO/2006/112751A1 |
The invention relates to a method for producing a carbamide from ammonium and carbon dioxide by forming in a synthesis area a carbamide melt flow which is processed in two distillation stages, wherein carbamide solutions and gas flows ar...
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WO/2006/100563A1 |
Methods and reagents for transition metal-promoted carbonylation via isocyanate using carbon-isotope labeled carbon monoxide are provided. The resultant carbon-isotope labeled compounds are useful as radiopharmaceuticals, especially for ...
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WO/2006/094541A2 |
A process for urea production from ammonia and carbon dioxide, made to react at a predetermined high pressure in an appropriate synthesis reactor (112), from the reaction between NH3 and C02 being obtained a reaction mixture comprising u...
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WO/2006/096048A1 |
The invention relates to a process for the preparation of a urea-comprising aqueous stream, that is suitable for use in a unit for the reduction of NOx in combustion engine exhaust gases, wherein the urea-comprising aqueous stream is sep...
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WO/2006/083166A1 |
Process for the production of melamine in a melamine production plant, comprising a melamine preparation zone and a carbamate conversion zone, characterized in that the carbamate conversion zone comprises an austenitic-ferritic duplex st...
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WO/2006/075000A1 |
A polyurea compound obtainable by reacting one or more polyisocyanates with one or more non-chiral mono-amines (I) and one or more chiral mono-amines (II) and co-precipitating the reaction products to form the polyurea compound, wherein ...
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WO/2006/063750A1 |
The invention relates to a method for producing colourless polyisocyanates that contain biuret groups and are stable in storage from di- or polyisocyanates, using water and/or water vapour as the biuret-forming agent. The invention also ...
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WO/2006/061083A1 |
The invention relates to a process for increasing the capacity of an existing urea process comprising, in the high-pressure section of the process, a reactor in which carbon dioxide and ammonia react to form urea, a thermal stripper in w...
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WO/2006/061082A1 |
The invention is directed to a process for the removal of ammonia from an ammonia-containing gas stream by treating the ammonia in the ammonia containing gas stream with an acid, during which treatment an aqueous stream comprising an a...
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WO/2006/060602A2 |
Precipitation of polyacetylenic agents can be effected with control of a particle size parameter such as mean size or spread, by mixing a warm solution of the acetylenic agent with a cold precipitation fluid and appropriate selection of ...
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WO/2006/052722A1 |
The invention relates to glycogen phosphorylase inhibitor compounds, pharmaceutical compositions of these compounds, methods of treatment using the pharmaceutical compositions to treat diabetes, conditions associated with diabetes, and/o...
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WO/2006/039960A1 |
Disclosed is a method for the production of urea from natural gas, wherein a) natural gas undergoes partial oxidation or autothermal reformation with a gas containing oxygen in a first step and the raw synthesis gas thus arising, consist...
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WO/2006/037574A1 |
The present invention is concerned with an improved method of producing (R)-2-acetamido-N-benzyl-3-methoxypropionamide (lacosamide) comprising the 0-methylation of a compound of formula (I) to produce a compound of formula (I I) in a sin...
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WO/2006/015709A1 |
A process for urea production comprises a first process step in which ammonia (7) and carbon dioxide (6) are obtained, subjecting natural gas (1) to reforming treatments (12, 14), and a second step of urea (8a) production from such ammon...
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WO/2006/012980A1 |
The invention relates to catalytic methods for the production of (meth)acrylates from N-hydroxyalkylated amides and applications thereof.
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WO/2006/004412A1 |
The invention relates to a method of improving the crushing strength and reducing the dust formation and the caking tendency of urea particles by the addition of an organic compound to the molten urea, where at least one carbohydrate and...
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WO/2006/004395A1 |
The invention relates to a process for the preparation of urea from ammonia and carbon dioxide in a urea plant that contains a high-pressure synthesis section and one or more recovery section(s) at a lower pressure, the high-pressure syn...
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WO/2005/102992A1 |
The invention relates to a process for the preparation of urea from carbon dioxide and ammonia in a urea plant comprising a high-pressure section and at least one recovery section at a lower pressure, an aqueous ammonium carbamate soluti...
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WO/2005/097737A1 |
The invention relates to a method for producing polyisocyanate prepolymers comprising allophanate structural units, using zinc compounds as catalysts and to the use of said prepolymers for producing polyurethanes and polycarbamides.
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WO/2005/095333A1 |
The present invention relates to polymorphic forms of (1-&lcub 3-[3-(4-cyano-3-methoxy-phenyl)ureido]-phenyl&rcub -ethyl)-carbamic acid-2-cyano-1-ethyl-ethyl ester, processes therein, pharmaceutical compositions thereof, and uses therewith.
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WO/2005/085180A1 |
A novel method of an amidocarbonylation reaction among an aldehyde compound, an amide compound, and carbon monoxide, which comprises using a palladium-supporting crosslinked-polymer composition containing palladium clusters having a majo...
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WO/2005/082862A2 |
The present invention relates to benzimidazolyl derivatives of formula (I), with the definitions of R8, p, Ar1, E, D, R9, q and R10 according to claim 1, the use of the compounds of formula (I) as inhibitors of one or more kinases, the u...
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WO/2005/080321A1 |
In an integrated process for urea and melamine production, urea is produced in a urea plant (12) comprising a high pressure urea synthesis section (15) and a urea recovery section (16) for separating urea from a carbamate aqueous solutio...
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WO/2005/061445A1 |
Methods and reagents for rhodium-promoted carbonylation via isocyanate using carbon-isotope labeled carbon monoxide are provided. The resultant carbon isotope labeled compounds are useful as radiopharmaceuticals, especially for use in ...
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WO/2005/049554A1 |
A process for the preparation of urea comprising adding methanol to a carbon monoxide containing gas, contacting the carbon monoxide-containing gas, methanol and water in at least one shift step in the presence of a catalyst comprising c...
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WO/2005/049193A1 |
Process for the preparation of urea granules in a fluid-bed granulator, by using at least one feeding device to feed a urea melt in the form of a film to a fluidized bed of solid urea nuclei, upon which the nuclei grow by solidification ...
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WO/2005/009925A1 |
A method of treating waste matter from animals, the method comprising: a) collecting waste matter from the animals; b) inhibiting urease activity in said collected waste matter; and c) separating said urease-activity inhibited waste matt...
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WO/2005/007732A2 |
Provided herein are polyurea polymers made from an organic isocyanate and a polyamine component, wherein the polyamine component comprises a polyether polyamine in which the nitrogen atoms are secondary. The polyurea polymers of the inve...
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WO/2005/007619A1 |
Process for the preparation of urea granules in a fluid bed granulator comprising at least one inlet for fluidization air, a distribution plate above which the fluid bed is present and sprayers that are mounted in the distribution plate,...
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WO2003095438A9 |
Compounds of the formula (I); wherein formula (II) represents a substituted group, an oxa-cycloalkyl group or a thia-cycloalkyl group, are glucokinase activators useful in the treatment of type II diabetes.
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WO/2004/096758A1 |
The invention relates to a process for the preparation of a urea and formaldehyde-containing aqueous solution (UFC), wherein the molar ratio between urea and formaldehyde (U/F) in the solution is between 0.5 and 0.001, wherein the UFC is...
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WO/2004/074217A2 |
A process for urea production comprises the steps of: - performing a reaction between ammonia and carbon dioxide in a reaction space to obtain a reaction mixture comprising urea, carbamate and free ammonia in aqueous solution, -subjectin...
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WO/2004/064730A2 |
Certain substituted urea derivatives selectively modulate the cardiac sarcomere, for example by potentiating cardiac myosin, and are useful in the treatment of systolic heart failure including congestive heart failure.
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WO/2004/011419A1 |
Process for increasing the capacity of a urea plant comprising a compression section, a high-pressure synthesis section, a urea recovery section, in which a urea melt is formed, and optionally a granulation section, the capacity of the u...
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WO/2004/007407A2 |
The present invention includes methods and compositions for increasing the fluorous nature of an organic compound by reacting it with at least one fluorous compound to produce a fluorous tagged organic compound. The increased fluorous na...
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WO/2004/007436A1 |
The invention relates to a method for producing tetra-substituted ureas by reacting the corresponding amines with phosgene in the presence of an aqueous inorganic base at a temperature ranging of from 0 to 150 °C. According to the inven...
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WO/2004/002949A1 |
Plant for urea production from ammonia and carbon dioxide having a so-called high-pressure section which comprises a synthesis reactor and a condensation unit (7) positioned inside the reactor, all substantially operating at the same pre...
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WO/2004/002941A1 |
The invention concerns cosmetic or dermopharmaceutical compositions comprising tyramine derivatives and their salts. The invention also concerns the method for preparing same and use thereof for reducing pigmentation.
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WO/2003/089379A1 |
A method for treating a waste stream, feeding the waste stream to the top of a hydraulic downdraft column, conducting the waste stream to the bottom of the column, conducting the waste steam to a first reaction zone, introducing nitrogen...
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WO/2003/087043A1 |
The invention relates to a process for the preparation of urea from ammonia and carbon dioxide in a urea process wherein the synthesis section contains a scrubber wherein the off-gas stream from the synthesis section is purified of ammon...
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WO/2003/084922A1 |
The invention relates to acyl-4-carboxyphenylurea derivatives, the physiologically-acceptable salts, physiologically-functional derivatives thereof and compounds of formula (I), where the groups have the given meanings, the physiological...
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WO/2003/084923A1 |
The invention relates to acyl-3-carboxyphenylurea derivatives, physiologically-acceptable salts, physiologically-functional derivatives thereof and compounds of formula (I), where the groups have the given meanings, the physiologically-a...
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