Patents
Patents for C07C 265 - Derivatives of isocyanic acid (3,263)
08/1997
08/19/1997US5658962 Omega-hydrofluoroalkyl ethers, precursor carboxylic acids and derivatives thereof, and their preparation and application
08/05/1997US5654479 Useful as stabilizers against hydrolytic degradation of polyaddition and polycondensation products containing ester groups
08/05/1997US5654474 Aromatic diisocyanate and method of producing the same
07/1997
07/30/1997EP0785943A1 Synthesis of 6-azaandrostenones
07/23/1997CN1155275A 4,4'-methylen-bis-(3-chloro-2,6-dialkylphenlisocyanates) and polyurethane thereof
07/17/1997WO1997025308A1 Fluorocarbon-containing isocyanate derivatives and soil-resist agents
07/16/1997CN1154362A Aromatic diisocyanate and method of producing same
07/15/1997US5648520 Fractionation and purification of aromatic polyamine and the use thereof
07/15/1997US5648519 Fractionation and purification of aromatic polyamine mixtures and the use thereof
07/10/1997WO1997024320A1 Production of isocyanate using chlorine recycle
07/09/1997CN1153772A Water-emulsifiable polyisocyanates
07/02/1997EP0781778A1 Novel paclitaxel prodrugs, method for preparation as well as their use in selective chemotherapy
06/1997
06/11/1997EP0777647A1 4,4'-methylen-bis-(3-chloro-2,6-dialkylphenylisocyanates) and polyurethane systems containing the same
05/1997
05/27/1997US5633396 Process for preparing triisocyanates
05/15/1997WO1997017323A1 Method of producing organic diurethanes and/or polyurethanes and their use in the production of di- and/or polyisocyanates
05/15/1997DE19541384A1 Verfahren zur Herstellung von organischen Diurethanen und/oder Polyurethanen und ihre Verwendung zur Herstellung von Di- und/oder Polyisocyanaten A process for the preparation of organic diurethanes and / or polyurethanes and to their use for the production of di- and / or polyisocyanates,
05/15/1997CA2235328A1 Preparation of organic diurethanes and/or polyurethanes and their use for preparing diisocyanates and/or polyisocyanates
05/14/1997CN1149579A Process for toluene diisocyanate and specific mixture of tolylene diamine and water and use in preparing toluene diisocyanate
05/02/1997EP0770067A1 Substituted cinnamic oxime and hydroxamide derivatives
05/01/1997CA2189064A1 Isocyanate composition
04/1997
04/30/1997CN1148852A Substituted diazacyclohexandi (thi) ones
04/29/1997US5625026 Amid group-containing diisocyanates and amide group-containing epoxy resins
04/24/1997WO1997014671A1 Cyclopentyl tachykinin receptor antagonists
04/23/1997CN1148377A Omega-hydrofluoroalkyle ethers, precursor carboxylic acid and derivatives thereof, and their prepn. and application
04/23/1997CN1148056A Prepn. of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates having reduced iodine color number and reduced chlorine content
04/22/1997US5623084 Fluoroalkenyl compounds and their use as pest repellents
04/16/1997CN1147504A Process for preparation of 2-fluorocyclopropylamine sulfonic acid salts and chemical compound 2-fluorocyclopropyl isocyanate
04/15/1997US5621138 4-phenyl-2,6-diisopropylphenyl isocyanate
04/09/1997EP0767166A1 Process for the preparation of acyl isocyanates
04/08/1997US5618967 Isocyanate composition
04/01/1997US5616784 Thermal cleavage of carbamic esters
03/1997
03/26/1997EP0764633A2 Process for the preparation of etherisocyanates
03/26/1997CN1146197A Cyclic triamine chelating agents
03/26/1997CA2186085A1 Process for the production of ether isocyanates
03/25/1997US5614549 High molecular weight polymer-based prodrugs
03/12/1997EP0760809A1 Omega-hydrofluoroalkyl ethers, precursor carboxylic acids and derivatives thereof, and their preparation and application
03/11/1997US5610408 Carbodiimidation, phospholine catalyst, phosphite
03/11/1997US5609735 Process and a device for separating a solid residue from its solution in a stirred bed of material
03/11/1997CA1338986C Process for the production of monoblocked diisocyanates
03/05/1997EP0759908A1 Substituted diazacyclohexandi(thi)ones
03/04/1997US5607977 Benzoylureas
02/1997
02/27/1997WO1997007092A1 Polyisocyanate particles of controlled particle size and particle size distribution
02/27/1997CA2227771A1 Polyisocyanate particles of controlled particle size and particle size distribution
02/26/1997CN1143952A Process for preparing isocyanates
02/25/1997CA1338940C Ó,ó-disubstituted n-cycloalkylalkylbenzylamines, process for their preparation, their use as a medicament and their synthesis intermediates
02/05/1997EP0757034A1 Process for the preparation of toluylenediisocyanate, special mixtures from toluylenediamine and water and their use for the preparation of toluylenediisocyanate
02/05/1997CA2182654A1 Process for the preparation of toluylene diisocyanate, specific mixtures of toluylene diamine and water, and the use of mixtures to prepare toluylene diisocyanate
02/04/1997US5599968 Continuous process for the preparation of organic isocyanates
01/1997
01/29/1997EP0755373A1 Cyclic triamine chelating agents
01/23/1997WO1997002255A1 Triazoline and isoxazoline bis-oxime derivatives and their use as pesticides
01/23/1997WO1997002253A1 Benzylhydroxylamines and intermediates used to prepare them
01/23/1997CA2223111A1 Benzylhydroxylamines and intermediates used to prepare them
01/23/1997CA2218015A1 Triazoline and isoxazoline bis-oxime derivatives and their use as pesticides
01/14/1997US5593945 Herbicides and chemical intermediates
01/08/1997EP0751931A1 Obtaining toluene 2,6-diisocyanate from a mixture containing toluene 2,6-diisocyanate and toluene 2,4-diisocyanate
01/07/1997US5591813 Amide group-containing diisocyanates and amide group-containing epoxy resins
01/02/1997EP0751118A2 Process for the preparation of mixtures of diphenylmethane diisocyanates and polyphenylmethylene polyisocyanates with a reduced iodic coloremetric measure and reduced chlorine content
12/1996
12/31/1996CA2180285A1 Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates having a reduced iodine color number and a reduced chlorine content
12/27/1996EP0749958A1 Process for the preparation of triisocyanates
12/27/1996EP0749420A1 Polycarbamates, process for preparing polycarbamates, and process for preparing polyisocyanates
12/24/1996CA2179344A1 Process for preparing triisocyanates
12/10/1996US5583251 Process for the production of isocyanates and for the production of light-colored foams therefrom
12/03/1996US5580947 Amidation
11/1996
11/20/1996EP0743299A1 Process for the preparation of 2-fluorocyclopropylamine sulfonic acid salts and the chemical compound 2-fluorocyclopropylisocyanate
10/1996
10/16/1996EP0737668A1 Fractionation and purification of mixtures of aromatic polyamines and their use
10/16/1996EP0737667A1 Fractionation and purification of aromatic polyamine mixtures and their use
10/16/1996CN1133286A Continual method for preparation of organic ester isocyanate
10/09/1996EP0736520A1 Fractionation and purification of mixtures of aromatic polyamines and their use
10/09/1996EP0736519A1 Fractionation and purification of mixtures of aromatic polyamines and their use
10/09/1996EP0736518A1 Fractionation and purification of mixtures of aromatic polyamines and their use
10/09/1996EP0736517A1 Fractionation and purification of mixtures of aromatic polyamines and their use
10/09/1996EP0736516A1 Fractionation and purification of mixtures of aromatic polyamines and their use
10/09/1996EP0736515A1 Fractionation and purification of mixtures of aromatic polyamines and their use
10/01/1996US5561162 Systemic pesticides; nematocides; insecticides; miticides; efficiency; crops
09/1996
09/10/1996US5554787 2,2-dialkylpentane 1,5-diisocyanates, 2,2-dialkylpentane 1,5-diurethanes and 2,2-dialkylpentane 1,5-dicarbamoyl chlorides, and their preparation and use
09/06/1996WO1996026915A1 Novel di- and polyamino compounds for use in the preparation of polyurethane materials
09/03/1996US5552508 Difunctional bitricyclodecatriene monomers
09/03/1996US5552507 Diisocyanates and processes for their production and use
08/1996
08/22/1996WO1996025444A1 Process for producing polyisocyanates containing biuret groups
08/22/1996DE19505035A1 Verfahren zur Herstellung biurethgruppen-haltigen Polyisocyanaten A process for preparing polyisocyanates containing biurethgruppen
08/22/1996CA2211025A1 Preparation of biuret-containing polyisocyanates
08/13/1996CA2046365C Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates of reduced iodine color number
07/1996
07/30/1996US5541322 Annulating a 4-amidoalkyl,5-(2-alkoxy)cyclohex-2-ene compound
07/24/1996CN1127248A A process for the preparation of aromatic polyisocyanate compounds in the gaseous phase
07/02/1996US5532414 4-substituted bis(2,6-diisopropylphenyl)-carbodiimides, their preparation, their use, and 4-substituted 2,6-diisopropylphenyl isocyanates which can be used for their preparation
07/02/1996US5532112 Photopolymerization
06/1996
06/13/1996DE19545757A1 Phenylene-di:isopropyl-bis:di:alkyl-phenyl isocyanate(s) with low toxicity
06/12/1996EP0716079A1 Continuous process for the manufacture of organic isocyanates
06/09/1996CA2164383A1 Continuous process for the preparation of organic isocyanates
05/1996
05/30/1996WO1996016028A1 Process for preparing isocyanates
05/30/1996CA2204403A1 Process for preparing isocyanates
05/29/1996EP0713871A1 Process for the preparation of 3,5-dimethylpyrazol blocked polyisocyanates
05/23/1996DE19542245A1 Phosgenating process
05/14/1996US5516935 Phosgenation of diamine
04/1996
04/25/1996WO1996011939A1 Synthesis of 6-azaandrostenones
04/16/1996CA2036538C Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates having a reduced iodine color number
04/10/1996CN1119959A A process and a device for seperating a solid residue from its solution in a strirred bed of material
03/1996
03/26/1996US5502244 Decomposing a carbamate with sulfonic acid catalyst
03/20/1996EP0702000A1 Process for adjusting a certain amount of iron in diphenylmethane diisocyanate or in polyisocyanate mixtures of the diphenylmethane diisocyanate series
03/20/1996CA2158414A1 Process for reducing the iron content in diphenylmethane diisocyanate or in polyisocyanate mixtures of the diphenylmethane series
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