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