Patents
Patents for C07C 265 - Derivatives of isocyanic acid (3,263)
10/1991
10/02/1991EP0449110A2 2,2-Dialkylpentane-1,5-diisocyanates, -diurethanes, and -dicarbamic acid chlorides, process for their preparation and their use
10/02/1991CN1014110B Process for preparing benzoylphenylureas
09/1991
09/17/1991US5049410 Perflurorpolyether
09/17/1991CA1289146C Diisocyanates, a process for their production and their use in the production of polyurethane plastics
09/11/1991EP0445608A2 Stabilisation of organic polyisocyanates
09/11/1991EP0445602A2 Process for the preparation of mixtures of diphenylmethane-diisocyanates and polyphenylmethylene-polyisocyanates with a reduced iodic colorimetric measure
09/08/1991CA2037085A1 Stabilization of organic polyisocyanates
09/03/1991US5045226 Reaction product of tin compound with sulfonyl isocyanate, storage stability, polyurethanes
08/1991
08/28/1991EP0443370A2 Dental materials
08/28/1991EP0443139A1 Process for preparing high trans, trans-isomer containing 4,4'-diisocyanato dicyclohexylmethane
08/28/1991EP0443138A1 Polyisocyanate mixtures, process for their preparation and their use as a binder for coating-compositions or as a reaction component for compounds reactive with isocyanate groups or carboxylic groups
08/27/1991US5043471 Process for the preparation of polyisocyanates
07/1991
07/30/1991US5035934 Adhesive sheet for preventing icing
07/24/1991CA2034035A1 Process for preparing high trans,trans-isomer containing 4,4'-diisocyanato dicyclohexylmethane
07/24/1991CA2033741A1 Polyisocyanate mixtures, processes for their production and their use as binders for coating compositions or as reactants for compounds reactive to isocyanate groups or carboxyl groups
07/23/1991US5034419 N-cycloalkylalkylamines, process for their preparation, their use as medicament and their synthesis intermediates
07/17/1991EP0436800A1 Process for producing isocyanate compound
06/1991
06/18/1991CA1284986C Polyisocyanate preparations containing latent tin catalysts and a process for their preparation
06/04/1991US5021080 Herbicidal substituted 4-amino-5-alkylthio-1,2,4-triazol-3-ones
05/1991
05/28/1991US5019264 Multilayer reverse osmosis membrane of polyamide-urea
05/21/1991US5017723 Psychotropic Agents
05/21/1991US5017211 Heterocyclic compounds
05/08/1991EP0426440A2 Lubrication of thin film disks
05/08/1991EP0425596A1 A process for distillation of crude isocyanate concentrates.
05/02/1991EP0424836A1 Preparation process of aliphatic isocyanates
04/1991
04/24/1991CA2028162A1 Preparation process of aliphatic isocyanate
04/16/1991US5008447 Process for the preparation of polyurethanes with liquid crystal properties and diisocyanates suitable for carrying out the process
04/02/1991US5004817 Plasticizers and nucleating agents for polyester molding materials
03/1991
03/20/1991EP0417690A2 Aromatization process
03/13/1991EP0416393A1 Peptidyl difluorodiol renin inhibitors
03/13/1991EP0416236A2 Process for the isolation isocyanic acid from a gaseous mixture of isocyanic acid and ammonia
03/12/1991CA2023720A1 Aromatization process
03/07/1991DE3928555A1 Isocyante(s) prodn. - by reaction of cpd. with one or more olefinic double bonds with substd. ammonium isocyanate in inert diluent
03/06/1991CA2024698A1 Peptidyl diflurodiol renin inhibitors
02/1991
02/13/1991EP0412380A1 Polyisocyanates or mixtures of polyisocyanates with estergroups, a process for the preparation of such isocyanates or such mixtures of polyisocyanates and their utilization for polyurethane lacquers
02/05/1991US4990633 Fluorinated bisaryloxy-substituted alkenes, process for their preparation and their use
01/1991
01/30/1991EP0410169A2 Process for the preparation of asymmetrically substituted ureas, carbamates, thiocarbamates and substituted isocyanates
01/22/1991US4987259 Multistep, from the corresponding diacid
01/15/1991US4985460 Ovicide and Chemosterilant for Insects
01/08/1991US4983763 Liquid and solid phase separation
01/08/1991US4983762 Preparation of biureto polyisocyanates
12/1990
12/26/1990CN1010945B Process for prepn. of benzoylphenylureas
12/25/1990US4980506 Benzoylphenylureas
12/12/1990EP0402020A1 An integrated process for the preparation of methylene diphenylene diisocyanates and polymethylene polyphenylene poly (isocyanates) from diamines and polyamines
12/05/1990CA2017660A1 Integrated process for the preparation of methylene diphenylene diisocyanates and polymethylene polyphenylene poly (isocyanates) from diamines and polyamines
11/1990
11/20/1990CA1276745C Process for the preparation of a polyiscocyanate with a biuret group
11/14/1990EP0397601A1 Benzoylphenylureas
11/14/1990EP0396977A2 Process for the preparation of polyisocyanates
11/14/1990EP0396976A2 Process for the preparation of polyisocyanates
11/13/1990US4970319 Process for the preparation of acyl isocyanates
11/11/1990CA2016357A1 Benzoylphenylureas
11/10/1990CA2015223A1 Process for the preparation of polyisocyanates
11/10/1990CA2015222A1 A process for the preparation of polyisocyanates
11/06/1990US4968830 Halogenative dehydrogenation
11/06/1990CA1276026C Functionalized monomers from 1-(1-isocyanato-1- methylethyl)-3 or 4-(1-methylethenyl) benzene
10/1990
10/31/1990CN1046522A Alicyclic diamine, alicylicdiisocyanate and polyisocyanatoisocyanuric ester and porcess of preparation thereof
10/24/1990EP0394058A1 Alicyclic diamines, alicyclic diisocyanates and polyisocyanato-isocyanurates and method for the preparation thereof
10/24/1990EP0232541B1 Polyisocyanate compositions containing latent tin-catalysts, their use in the preparation of polyurethane resins and reaction products of sulfonyl isocyanates with selected tin compounds
10/21/1990CA2015009A1 Alicyclic diamines, alicyclic diisocyanates and polyisocyanato-isocyanurates and method for the preparation thereof
10/10/1990EP0391716A1 An integrated process for the preparation of aromatic mono- and polyisocyanates from aromatic amines
10/10/1990EP0391187A2 Substituted 4-amino-5-alkylthio-1,2,4-triazol-3-ones
10/02/1990US4960848 Trimerizing with quaternary ammonium fluoride catalyst, terminating with poison
09/1990
09/26/1990EP0388977A2 Polycyclic amines useful as cerebrovascular agents
09/26/1990CN1045578A Preparation process of eylylene diisocyanate
09/23/1990CA2012866A1 Polycyclic amines useful as cerebrovascular agents
09/04/1990WO1990009990A1 A process for distillation of crude isocyanate concentrates
09/04/1990CA2028819A1 Process for distillation of crude isocyanate concentrates
08/1990
08/29/1990EP0384463A1 Preparation process of xylylene diisocyanate
08/23/1990CA2010224A1 Preparation process of xylylene diisocyanate
08/22/1990EP0383141A2 Fluorine-containing alpha,omega-bifunctional compounds and process for their production
08/21/1990US4950813 Preparation of substituted benzotrichlorides
08/16/1990EP0382112A2 Pyrimidine trione derivatives, process for their preparation, agents containing them, and their use as parasiticides
08/07/1990US4946990 Process for the preparation of isocyanates and their use of the preparation of polyisocyanates containing ester groups
08/07/1990US4946854 3-aminobenzoylphenylureas useful for controlling parasites and insects that attack domestic animals and livestock
08/06/1990CA2009301A1 Pyrimidinetrione derivatives, processes for their preparation, agents containing them and their use as agents for combating pests
08/01/1990EP0380146A2 Process for the preparation of N-omega-hydroxyalkyl, N-omega-hydroxy-oxa-alkyl and N-omega-hydroxy-polyoxa-alkyl carbamates
07/1990
07/17/1990US4942164 Polyfluorinated diisocyanates and fluorinated polyurethanes prepared therefrom
06/1990
06/27/1990EP0374932A1 Rigid foams prepared from treated toluene diisocyanate residue
06/22/1990CA2006371A1 Rigid foams prepared from treated toluene diisocyanate residue
06/19/1990US4935486 Process for the production of modified polyisocyanates, the polyisocyanates obtainable by this process and their use as binders or as a binder component
06/13/1990CN1042903A Purification method of waste gas of isocyanates
06/12/1990US4933341 Substituted 1,3,5-triazinetriones, for use against parasitic protozoa
05/1990
05/26/1990CA2003884A1 Adhesive sheet for preventing icing
05/22/1990CA1269396A1 Process for producing 2-isocyanato-2,3-dehydro carboxylic esters
05/15/1990US4925982 Production of isocyanate compounds
05/08/1990CA1268891A1 Process for the production of blocked polyisocyanates containing carbodiimide groups, the polyisocyanates obtainable by this process and their use for the production of plastics
05/03/1990DE3837036A1 4-Phenoxy-substituted 3,5-dichlorophenyl isocyanates
04/1990
04/25/1990EP0364765A2 Substituted 1,3,5-triazinetriones, process for their preparation, and their use against parasitical protozoa
04/18/1990EP0363585A1 N-aryl nitrogen heterocycles
04/17/1990US4918220 Separation of toluene diisocyanate from the residues of the production thereof
04/08/1990CA2000234A1 Substituted 1,3,5-triazinetriones, processes for their preparation and their use against parasitic protozoa
04/04/1990EP0362001A1 N-cycloalkyl benzylamines alpha,alpha disubstituted, the process for their preparation, their use as drugs and their synthesis intermediates
04/04/1990EP0361990A1 Disubstituted benzylamines, the process for their preparation, their use as drugs and their syntheses intermediates
04/03/1990US4914238 Process for the production of diisocyanates, selected diisocyantes produced thereby and the production of polyurethane plastics therefrom
03/1990
03/27/1990CA1267157A1 Isocyanate compounds and their production
02/1990
02/28/1990EP0355443A2 Cyclic process for the preparation of (cyclo)aliphatic diisocyanates
02/27/1990US4904704 Reacting hydrolyzable chloride with epoxy component; polyisocyanurates and polyurethanes
02/27/1990US4904696 Benzoylurea derivative and its production and use
01/1990
01/31/1990EP0352718A2 Partially fluorinated compounds and polymers
01/31/1990EP0352268A1 Isocyanate-modified poly(alkylene carbonate) polyahls, prepolymers and urethane/urea polymers prepared therefrom
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