Patents
Patents for C07C 265 - Derivatives of isocyanic acid (3,263)
10/2003
10/29/2003EP1086075B1 Method for treating distillation residues from the synthesis of toluene diisocyanate
10/28/2003US6639102 Process for producing polyisocyanates of the diphenyl methane series having a reduced color value
10/28/2003US6639101 Isocyanate production procedure
10/16/2003WO2003084921A1 Reactor for thermally cracking monofunctional and polyfunctional carbamates
10/14/2003CA2082786C A process for the production of polyisocyanates
10/09/2003WO2003082803A1 Process for the production of diaminodiphenylmethane and its higher homologues
10/08/2003EP1349831A2 Method for using a carbamoyl fluoride as fluorinating agent
10/07/2003US6630599 Process for preparing derivatives of isopropenyl-α, α-dimethylbenzyl isocyanate
10/02/2003US20030187233 Perfluoroisopropybenzene derivative
10/01/2003EP1073628B1 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
10/01/2003CN1446237A Isocyanate compositions and their use in preparation of expanded polyurethane materials with endowed flame-resistance
09/2003
09/24/2003EP1345888A1 Method for the production of 1,5-naphthalenediamine
09/24/2003CN1443796A Preparation method of polyisocyanate of diphenyl methane series with low color value
09/23/2003US6624120 Substituted herbicidal phenyluracils
09/23/2003CA2127110C Carbamates and crop protection agents containing them
09/18/2003US20030176626 Process for producing polyisocyanates of the diphenyl methane series having a reduced color value
09/17/2003EP1344766A2 Process for the preparation of polyisocyanates of the diphenylmethane series having reduced colour
09/17/2003CN1442401A Method of preparing dinitronaphthalene isomer mixture having high percentage 1,5-dinitronaphthalene
09/13/2003CA2421395A1 Process for producing polyisocyanates of the diphenyl methane series having a reduced color value
09/12/2003WO2003074477A1 Method for producing isocyanates
09/12/2003WO2003074473A2 Irreversible selective androgen receptor modulators and methods of use thereof
09/12/2003CA2476651A1 Irreversible selective androgen receptor modulators and methods of use thereof
09/11/2003US20030171627 Naphthalene and/ or 1-nitronaphthalene is reacted with nitric acid in the presence of a zeolite.
09/10/2003EP1342713A1 Method for producing a dinitronaphthalene-isomer mixture having an increased 1,5-dinitronaphthalene proportion
09/09/2003US6617413 With or without blocking, allophanate groups and free-radically polymerizable C=C double bonds in activated form by a carbonyl group attached directly or an oxygen atom in an ether function
09/04/2003US20030166965 Reacting amines with phosgene
09/04/2003US20030166487 Normally liquid, omega-hydrofluoroalkyl ether compounds (and selected mixtures thereof) have a saturated perfluoroaliphatic chain of carbon atoms interrupted by one or more ether oxygen atoms. The compounds can be prepared, by decarboxylation of
09/02/2003US6613458 Benzo(a)perylene derivative dopant
08/2003
08/28/2003US20030162995 Integrated process for the preparation of aromatic isocyanates and procedures for effecting the relative intermediate phases
08/21/2003WO2003068359A2 Reaction column in a special combination with a natural circulation evaporator
08/20/2003EP1187808B1 Light isocyanates, method for producing them and use thereof
08/20/2003CN1436772A Isocyanate preparing process
08/13/2003CN1117781C Isocyanate compositions for foaming polyurethane plastic foams
08/06/2003CN1434743A Method and device for the continuous production of organic mono of polyisocyanates
08/06/2003CN1434742A Method for reducing byproducts in the mixture of educt trreams
07/2003
07/30/2003EP1330443A1 Substituted phenyluracils
07/30/2003CN1432563A Prepn process of carbamate and prepn process of isocyanate
07/29/2003CA2096501C Process for the preparation of aromatic diisocyanates
07/23/2003CN1115332C Metal surface treating agent contg. polyoxyethylene alkylphenol ether derivatives
07/22/2003CA2069384C A process for the preparation of liquid storable organic isocyanates containing carbodimide and/or uretone imine groups and their use for the preparation of polyurethane plastics
07/10/2003US20030130124 Uracil compounds and use thereof
07/08/2003US6590005 Isocyanate compositions for blown polyurethane foams
07/03/2003US20030125579 Aliphatic amines, alicyclic amines, and aralkyl aminea are reacted with alkylaryl carbonates to produce carbamates which are thermally decomposed to produce isocyanates
07/02/2003EP1323708A1 Method for producing carbamates and method for producing isocyanates
06/2003
06/26/2003US20030120108 Preparation of biuret-containing polyisocyanates
06/25/2003CN1425647A Improving method for preparing (poly) isocyanate by gas phase
06/19/2003US20030114705 Process for the production of (poly)isocyanates in the gas phase
06/18/2003EP1319655A2 Improved process for the preparation of (poly-)isocyanates in the gas phase
06/17/2003CA2084957C Process for preparing polyamines for lighter color polyisocyanate based foam
06/11/2003EP1317495A1 Isocyanate compositions and their use in the preparation of expanded polyurethane materials with endowed flame-resistance
06/10/2003US6576788 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 color index
06/10/2003CA2086175C Polytetramethylxylylene carbodiimide
06/05/2003WO2003045900A1 Production of isocyanates in the gaseous phase
06/04/2003CN1110473C Method for removing contaminants from products
05/2003
05/22/2003WO2003042170A1 Method for production of isocyanates
05/21/2003CN1419538A Integrated process for the preparation of aromatic isocyanates and procedures for effecting the relative intermediate phases
05/08/2003WO2002076928A3 Alkylamine derivatives as antifouling agents
05/02/2003EP1053222B1 Method for the production of methylenedi(phenylamine) and methylenedi(phenyl isocyanate)
05/01/2003WO2003035607A1 Method for producing isocyanates
05/01/2003WO2003035606A1 Improved method for producing isocyanates
05/01/2003US20030082403 Organic electroluminescent elements
04/2003
04/24/2003US20030078310 Isocyanate compositions for blown polyurethane foams
04/16/2003CN1105710C Substituted diazacyclo hexandi (thi) ones
04/15/2003CA2095188C Process for the production of polyamine mixtures of the poly-amino-polyaryl-polymethylene series
04/10/2003US20030069441 Phosgenation of (cyclo)aliphatic diamines and triamines in the gas phase by accelerating the reactant gas flow
04/10/2003US20030069438 Method for the stereoselective synthesis of cyclic amino acids
04/03/2003US20030065023 Anticancer agents, viricides, psychological disorders
04/02/2003EP1296753A1 Method and device for reducing byproducts in the mixture of educt streams
04/02/2003EP0759908B1 Substituted diazacyclohexandi(thi)ones
04/02/2003CN1407967A Stereoselective synthesis of cyclic amino acids
04/02/2003CN1406925A Production of low color diphenyl methane polyisocyanate
03/2003
03/26/2003CN1406224A Process for the preparation of organic polyisocyanates
03/25/2003US6538158 Process for preparing 1,4-diaminonaphthalene and/or 1,5-diaminoNaphthalene
03/20/2003US20030055282 Decomposing polycarbamates into alcohols and at least a portion of either diisocyantes or monoisocyanatomonocarbamates are removed during decomposing
03/12/2003EP1289649A1 Method and device for the continuous production of organic mono or polyisocyanates
03/06/2003US20030045745 Reacting aniline and formaldehyde in the presence of an acidic catalyst, neutralizing with a base at a temperature of more than 110 degrees C. and phosgenating; intermediates for polyurethane
03/05/2003EP1288190A2 Process for the preparation of polyisocyanates of the diphenylmethane series having reduced colour
03/04/2003US6528455 Phenoxy-and thiophenoxy acrylic acid compounds as herbicides
02/2003
02/25/2003CA2110235C At least partially blocked organic polyisocyanates, a process for their preparation and their use in coating compositions
02/24/2003CA2399483A1 Process for the production of polyisocyanates of the diphenylmethane series with a reduced color value
02/19/2003CN1398249A Perfluoroisopropylbenzene derivatives
02/19/2003CN1101808C Method for producing organic diurethanes and/or polyurethanes and their usein prodn. of di-and/or polyisocyanates
02/18/2003US6521707 (poly)ether amine ester isocyanate derivatives that can be reacted with hydroxy and amino compounds to form urethanes or ureas used in the isolation of nucleic acids
02/12/2003CN1396153A Method for preparing (cycle) fatty isocyanate
02/12/2003CN1396152A Method for preparing (cycle) fatty isocyanate
02/05/2003CN1394851A Synthesis mothod of 1,5-naphthalene diisocyanate
01/2003
01/30/2003US20030023114 Polyisocyanates as coating components for coating means rich in solids
01/23/2003US20030017948 For herbicides
01/22/2003CN1099410C Process for preparing 2,2'-dimethyl-3,3'5,5' triphenyl methane tetraiso-cyanate
01/16/2003US20030013909 Process for preparing (cyclo)aliphatic isocyanates
01/15/2003EP1275640A1 Process for the preparation of (cyclo)aliphatic isocyanates
01/15/2003EP1275639A1 Process for the preparation of (cyclo)aliphatic isocyanates
01/02/2003EP1270544A1 Process for the preparation of methylenedi(phenylamine) and methylenedi(phenylisocyanate)
01/01/2003CN1388116A One kind of 4-cyano phenyl isocyanate and its chemical synthesis
12/2002
12/27/2002WO2002102763A1 Method for producing isocyanates
12/26/2002US20020198408 Process for preparing 1,4-diaminonaphthalene and/or 1,5-diaminonaphthalene
12/19/2002WO2002100915A1 Process for the continuous production of polyisocyanates
12/11/2002EP1263832A1 Polyisocyanates as coating components for coating means rich in solids
12/11/2002EP0624155B2 Carbamates and plant-protecting agents containing them
12/10/2002US6491983 Omega-hydrofluoroalkyl ethers, precursor carboxylic acids and derivatives thereof, and their preparation and application
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