Patents
Patents for C07C 265 - Derivatives of isocyanic acid (3,263)
01/1990
01/24/1990EP0351647A2 2,2-Difluorocyclopropyl derivates
01/23/1990US4895920 Process for the preparation of polyurethanes with liquid crystal properties and diisocyanates suitable for carrying out the process
01/23/1990CA1264746A1 Thiobarbituric acid derivatives
01/02/1990US4891441 Process for the preparation of polymeric tertiary aralkyl isocyanates from 1,3- or 1,4-bis(1-chloro-1-methylethyl)benzene
12/1989
12/26/1989US4889656 Surfactants
12/19/1989US4888125 Bis(isocyanatophenoxy)alkanes produced by phosgenation of corresponding amines
12/19/1989US4888124 Preparation of stable dispersions of finely divided polyisocyanates and preparation of heat-crosslinkable isocyanate systems
12/12/1989US4886902 Process for the preparation of isocyanates and their use for the preparation of polyisocyanates containing ester groups
12/12/1989US4886823 Furazanylurea acaricides
11/1989
11/29/1989EP0343441A2 Fluorinated bis-aryloxy-substituted alkenes, method for their production an their application
11/28/1989US4883909 Liquid diphenylmetane diisocyanate compositions
11/21/1989CA1263116A1 Aliphatic isocyanate compounds
11/15/1989EP0341515A1 Liquid diphenylmethane diisocyanate compositions
11/08/1989EP0340584A1 Process for the preparation of modified polyisocyanates.
11/07/1989US4879409 Cyclohexylmethane diisocyanates
11/07/1989US4879408 Intermediates for polyurethanes
11/02/1989EP0339396A1 Process for producing polyisocyanates containing isocyanurate groups
10/1989
10/30/1989EP0352268A4 Isocyanate-modified poly(alkylene carbonate) polyahls, prepolymers and urethane/urea polymers prepared therefrom.
10/24/1989US4876376 Halogen-fluorine exchange in hydrofluoric acid without catalyst; plant safening agents
10/18/1989EP0337898A1 Process for the purification and isolation of isocyanate condensates by extraction with liquid or supercritical CO2
10/18/1989EP0337600A2 Benzoylurea derivative, process for producing the same, insecticide containing the same, reaction intermediate of the same and process for producing the intermediate
10/10/1989US4873365 Process for the preparation of isophorone diisocyanate from isophorone dicarbamyl esters using highly selective SnO2 or CuO catalysts
10/04/1989EP0334911A1 Substituted phenyltrifluormethylethers
10/03/1989US4871828 Purification/isolation of isocyanate condensates
10/03/1989US4871460 Isolation/purification of isocyanate condensates by extraction with liquid or supercritical gas
09/1989
09/27/1989EP0334720A1 Process for the preparation of acyl isocyanates
09/27/1989EP0333791A1 Heterocyclic compounds
09/26/1989US4870206 Aromatic polyisocyanates, their preparation and use as components for adhesives
09/26/1989US4870198 Process for the preparation of isocyanates and their use for the preparation of polyisocyanates containing ester
09/06/1989EP0331085A2 Polyoxyalkylene ether derivatives of carboxylic acid salts and esters
08/1989
08/29/1989US4861909 Isocyanate-modified poly(alkylene carbonate) polyahls
08/16/1989CN1034712A Process for making aliphatic and cycloaliphatic polyisocyanates
08/09/1989EP0327231A1 Process for making aliphatic and cycloaliphatic polyisocyanates
08/09/1989CN1034536A Continuous preparation method of monoisocyanate or polyisocyanate
08/01/1989US4853397 Miticides
07/1989
07/25/1989US4851571 Process for the production of isocyanates
07/25/1989US4851570 From amines, phosgene; multicompartment; perforated plates; multizonal
07/19/1989EP0324701A1 Process for the separation of toluene diisocyanate from its production residues
07/19/1989EP0324215A1 Process for separating a mixture comprising 2,6-toluene diisocyanate and 2,4-toluene diisocyanate
07/18/1989CA1257582A1 Process and apparatus for the preparation of mixtures of isocyanate and water which are stable for a short time for glueing particulate material, in particular chips, fibers or the like
07/12/1989EP0323514A1 Process for preparing isocyanate compounds
07/11/1989US4847408 Phosgenation of diamines
07/11/1989CA1257292A1 Process for separating methyl isocyanate
07/05/1989EP0322647A1 Process for the continuous production of mono- or polyisocyanates
07/05/1989CN1033620A Process for puring and separating isocyanate condensation compounds by extraction with liquid supercritical carbon dioxide
07/04/1989US4845283 Alkenylated diphenyldiisocyanates for use in preparing polyurethane/urea systems
06/1989
06/14/1989EP0320448A2 3-Aminobenzoyl phenyl urea
06/14/1989EP0319929A2 Novel blocked isocyanates and method of making and using the same
06/07/1989EP0318796A2 Substituted benzoyl(thio) ureas
06/07/1989EP0318782A2 Substituted benzoyl(thio) ureas
06/06/1989US4837359 From diisocyanate and diamine, both containing aliphatically and/or cycloaliphatically bound isocyanate and amino groups
05/1989
05/31/1989EP0317743A1 Process for the preparation of monoblocked (cyclo) aliphatic diisocyanates
05/31/1989CN1004353B Process for the production of n-methylcarbamates
05/30/1989US4835239 Diisocyanates and their use for the preparation of polyurethanes
05/24/1989EP0316734A2 Furazanyl ureas
05/10/1989EP0314985A1 Process for the preparation of mono- and polyisocyanates
05/10/1989CN1032787A Method for the recovery of isocyanates
05/09/1989US4828753 Organostannic compounds
05/05/1989WO1989003864A1 Alpha-substituted acrylic acid esters, their polymers and method of synthesizing same
05/03/1989EP0314380A1 Perfluoro(cycloaliphatic methyleneoxyalkylene)carbonyl fluorides and derivatives thereof
04/1989
04/19/1989EP0311901A2 Alkenylated diphenyldiisocyanates for use in preparing polyurethane/urea systems
04/19/1989CN1032435A Substituted phenyl trifluoromethyl ethers
04/18/1989US4822517 Diphenylmethane diisocyanate isomer mixture
04/13/1989DE3732284A1 Substituierte phenyltrifluormethylether Substituted Phenyl trifluoromethyl ethers
04/11/1989US4820866 Process for the production of diisocyanates, selected diisocyanates produced thereby and the production of polyurethane plastics therefrom
04/11/1989CA1252479A1 Stabilisation process of polyisocyanate organic solutions
04/06/1989WO1989002891A1 Heterocyclic compounds
04/06/1989WO1989002884A1 Substituted phenyltrifluormethylethers
03/1989
03/29/1989EP0309364A2 Process for the purification and isolation of condensed isocyanates by extraction with liquid or supercritical carbon dioxide
03/28/1989CA1251793A1 Process for the production of polyisocyanates containing isocyanurate groups, the compounds which may be obtained according to this process, and the use thereof for the production of polyurethanes
03/22/1989EP0307837A2 Renin-inhibiting peptidyl heterocycles
03/22/1989EP0307763A2 Process for the preparation of polyisocyanates
03/22/1989EP0307757A2 Process for the production of polyurethanes with LC-properties and diisocyanates suitable for carrying out this process
03/22/1989EP0307756A2 Process for the preparation of isocyanates and their use in the preparation of polyisocyanates containing ester groups, and some polyisocyanates containing these ester groups
03/22/1989EP0171434B1 Crosslinking agents and process for their preparation
03/15/1989EP0306804A2 Process for the preparation of substituted benzyl trichlorides
03/07/1989US4810820 Process for the production of polyisocyanates containing allophanate groups
03/07/1989CA1250860A1 Production of isocyanate compounds
03/07/1989CA1250855A1 4,4'-diisocyanato-phenylbenzylether, a process for the preparation thereof and use in the production of polyurethane plastics
03/07/1989CA1250854A1 Process for the production of thermally color stable aliphatic and/or cycloaliphatic diisocyanates and the use thereof for the production of modified polyisocyanates having improved color properties
02/1989
02/15/1989EP0303150A2 Process for the production of poly-isocyanates containing allophanate groups
01/1989
01/31/1989CA1249594A1 Process for the production of n-methylcarbamates
01/17/1989US4798837 Benzoylphenylureas
01/11/1989EP0298336A1 Aromatic polyisocyanates, process for their preparation and their use as components of adhesives
01/03/1989US4795571 Purification of frozen crystal layers
12/1988
12/22/1988DE3719424A1 Liquid-crystalline isocyanates
12/13/1988USRE32801 Injection of isocyanate under high pressure into low pressure stream
11/1988
11/29/1988US4788329 Preparation of cyclohexyl mono- and diurethanes and isocyanates derived therefrom by addition of methylcarbamate to limonene, process and compositions
11/23/1988EP0291819A2 Process for the preparation of isocyanates
11/22/1988US4786751 Dissocyanates, diisocyanate mixtures and a process for their production
11/17/1988EP0290902A2 Condensed (thio)hydantoins
11/09/1988EP0289840A1 Process for the preparation of (cyclo)aliphatic diisocyanates
10/1988
10/18/1988CA1243332A1 Process for purifying polyisocyanates and the polyisocyanates thus purified
10/11/1988US4777283 Process for the preparation of alkoxycarbonyl isocyanates
09/1988
09/28/1988EP0283884A1 Process for the preparation of diisocyanates
09/27/1988US4774357 Solvent extraction, separation
09/27/1988CA1242455A1 Benzoylphenylureas
09/14/1988EP0281941A2 Coreactive photoinitiators
09/07/1988WO1988006577A1 Isocyanate-modified poly(alkylene carbonate) polyahls, prepolymers and urethane/urea polymers prepared therefrom
09/06/1988US4769485 Preparation of alkenoyl isocyanates
1 ... 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33