Patents
Patents for C07C 269 - Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups the nitrogen atom not being part of nitro or nitroso groups (4,512)
02/1984
02/07/1984US4430505 Urea, primary amines, alcohols
02/07/1984US4430262 Oxidative conversion of oxamic acids, salts, and oxyanilides
01/1984
01/24/1984CA1161191A1 Process for treating anion exchange resins
12/1983
12/20/1983CA1159074A1 Carbamate process
12/06/1983US4419364 Bronchospasmolytic carbamate derivatives
10/1983
10/25/1983CA1155866A1 Preparation of n-monosubstituted carbamates
10/04/1983CA1154788A1 Process for the production of urethanes
09/1983
09/27/1983CA1154456A1 (n-substituted carbamoyloxy) alkyleneoxy alkyl acrylate esters
09/27/1983CA1154455A1 (n-substituted carbamoyloxy) alkanoyloxyalkyl acrylate esters
09/06/1983CA1153386A1 Process for the preparation of urethanes
08/1983
08/31/1983EP0087047A2 Process for the preparation of N substituted urethanes
08/30/1983CA1153007A1 N-substituted imido-dicarboxylic acid diaryl esters, a process for their preparation and their use as intermediate products
08/24/1983EP0086390A2 Process for the preparation of N-substituted carbamic acid esters
08/23/1983CA1152524A1 Preparation of carbamates from aromatic amines and organic carbonates
08/23/1983CA1152523A1 Preparation of carbamates from aromatic amines and organic carbonates
08/17/1983EP0086018A2 Preparing carbamic acid esters
08/16/1983CA1152089A1 Process for production of 1-naphthyl methylcarbamate
08/09/1983US4398036 Preparation of N-monosubstituted carbamates
08/02/1983CA1151345A1 Curable mixtures containing dimethylamino derivatives
08/02/1983CA1151201A1 Process for the preparation of n-substituted imido- dicarboxylic acid diaryl esters
08/02/1983CA1151200A1 Process for the preparation of n-substituted imido- dicarboxylic acid diaryl esters
07/1983
07/26/1983US4395565 Preparing aromatic urethans
06/1983
06/28/1983CA1148970A1 Process for the preparation of urethanes
06/28/1983CA1148969A1 Process for the preparation of n,o-disubstituted urethanes suitable as a starting material for the preparation of isocyanates
06/14/1983US4388238 From primary amines, alcohols, and carbonyl compounds
05/1983
05/25/1983EP0079536A2 Process for the preparation of modified polyamines
05/17/1983CA1146579A1 Process for the preparation of n-monosubstituted carbamic acid esters
04/1983
04/26/1983US4381404 Process for the production of N,O-disubstituted urethanes and use thereof as starting materials for the production of organic isocyanates
04/26/1983US4381403 Process for the preparation of N-monosubstituted carbamic acid esters
04/12/1983CA1144564A1 Process for the preparation of n,o- disubstituted urethanes useful for the preparation of isocyanates
03/1983
03/09/1983EP0073442A2 N-alkoxycarbonyl and N-alkoxythiocarbonyl amidines and preparation thereof
03/08/1983CA1142535A1 Substituted carbanilic acid esters, processes for the manufacture of these compounds and herbicidal preparations containing them
03/08/1983CA1142534A1 Branched-chain monoalcohols and derivatives thereof, lubricant compositions for polymers and wax compositions in which these novel products are incorporated
02/1983
02/16/1983EP0071835A1 Process for preparing urethanes
02/09/1983EP0071139A2 Simplified process for the preparation of polyamines by alkaline hydrolysis compounds containing NCO groups, and use of these polyamines in the preparation of polyurethanes
02/01/1983CA1140582A1 Process for separating selenium, selenium compounds, sulfur and/or sulfur compounds from polyurethanes containing these elements and/or compounds
01/1983
01/05/1983EP0068220A1 Low temperature storage stable liquid diphenylmethane diisocyanates
12/1982
12/29/1982EP0029460B1 Process for preparing aromatic urethane
12/28/1982CA1138202A1 Substituted aminocarbamate in gasoline
12/22/1982EP0067463A1 A process for the preparation of isocyanates and/or derivatives thereof
12/08/1982EP0066231A2 Process for the preparation of N-substituted urethanes
11/1982
11/30/1982CA1136642A1 Method for increasing the 4,4' dicarbamate isomer of the diphenlmethane dicarbamates during preparation thereof
11/23/1982CA1136157A1 Preparation of methylene-bis-(4-phenylcarbamic acid esters)
11/23/1982CA1136156A1 Preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates with lewis acid catalysts intercalated in graphite
10/1982
10/19/1982CA1133928A1 Process for the production of urethanes
10/05/1982CA1133008A1 Process for the production of urethanes
09/1982
09/28/1982CA1132600A1 Preparation of methylene-bis-phenylcarbamic acid esters and of polymethylene-polyphenyl- carbamic acid esters
09/22/1982EP0060476A2 Process for the preparation of N substituted di and/or polyurethanes
09/08/1982EP0059400A2 Process for the preparation of urethanes
08/1982
08/17/1982US4344891 Halogenated tertiary alkyl isocyanates and their preparation
08/10/1982CA1129433A1 Process for the preparation of urethanes
07/1982
07/20/1982US4340497 Curable acrylic coating
07/13/1982US4339592 Process for the production of urethanes
07/07/1982EP0055359A1 Process for the preparation of 1-alkenyl isocyanates
06/1982
06/23/1982EP0054218A1 Process for the preparation of urethanes
06/01/1982US4332742 Low temperature storage stable liquid diphenylmethane diisocyanates
05/1982
05/25/1982CA1124251A1 Herbicidally active carbamic acid phenyl esters and their manufacture and use
05/18/1982US4330657 Process for the production of storage-stable urethane acryls
05/04/1982US4328354 Preparation of methylene-bis-phenylcarbamic acid esters and polymethylene-polyphenylcarbamic acid esters
05/04/1982CA1123000A1 Process for the preparation of an aromatic di- and/or polyurethane
05/04/1982CA1122998A1 Herbicidally active diurethanes and their manufacture and use
05/04/1982CA1122997A1 Stabilized polyisocyanates partially blocked with hydroxy amines
04/1982
04/13/1982US4324739 Curing agents for polyepoxides
04/07/1982EP0048927A2 Process for the preparation of N,O-disubstituted urethanes, and their use as raw materials in the manufacture of isocyanates
04/06/1982US4323495 Novel branched-chain monoalcohols and derivatives thereof, lubricant compositions for polymers and wax compositions in which these novel products are incorporated
04/06/1982CA1121374A1 Process for the preparation of an aryl mono-, di-, and/or polyurethane
03/1982
03/31/1982EP0048377A1 Process for the preparation of N-substituted diaryl imidodicarboxylates
03/31/1982EP0048376A1 Process for the preparation of N-substituted diaryl imidodicarboxylates
03/31/1982EP0048371A2 Process for the preparation of N,O-disubstituted urethanes
03/31/1982EP0048368A2 Process for the preparation of N- and O-substituted mono- or bis-urethanes
03/23/1982US4321402 Carbamate process
03/09/1982US4319035 From aromatic nitro compounds or amines, oxidizers, carbon monoxide, hydroxy compounds
03/09/1982US4319018 In acid catalyst
03/09/1982CA1119609A1 Process for preparing polymethylene polyphenyl polycarbamates
02/1982
02/09/1982CA1117969A1 Process for the preparation of an aliphatic, cycloaliphatic, and/or aliphatic-cycloaliphatic di- and/or polyurethane
02/09/1982CA1117968A1 Process for the preparation of an aliphatic, cycloaliphatic, and/or aliphatic-cycloaliphatic di- and/or polyurethane
01/1982
01/13/1982EP0043807A2 1-(Dihydroxyphenyl)-2-amino-ethanol derivatives; preparation, compositions and intermediates
01/12/1982CA1116177A1 Process for the preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates
12/1981
12/29/1981US4308394 Photopolymerizable photoinitiators
12/29/1981CA1115286A1 Process for the preparation of urethanes
12/29/1981CA1115285A1 Process for the preparation of urethanes
12/22/1981CA1114990A1 Polyols
10/1981
10/27/1981US4297501 By reacting primary amines, carbon monoxide and an organic alcohol in the presence of oxygen and a metal catalyst system
10/27/1981CA1111437A1 Hydroxy terminated polybutadiene based polyurethane bound propellant grains
10/21/1981EP0038005A1 Process for the production of methylene-bis-phenylcarbamic acid esters and polymethylene polyphenylcarbamic acid esters
10/20/1981CA1111061A1 Process for the production of urethanes
10/07/1981EP0037314A1 N-substituted carbamoyloxy alkanoyloxyhydrocarbyl acrylate esters
09/1981
09/30/1981EP0036813A1 (N-Substituted carbamoyloxy)alkyleneoxyhydrocarbyl acrylate esters
09/16/1981EP0035752A1 Process for the preparation of urethanes
09/02/1981EP0034750A2 N-substituted imidodicarboxylic acid diaryl esters and a process for their preparation
08/1981
08/26/1981EP0034323A2 Amino acid and peptide esters of leuco-indo anilines, process for their preparation and agents containing these compounds for the detection of proteolytic enzymes
08/18/1981US4284727 Ammonium hydroxide, ammonium chloride
08/04/1981US4282370 Preparation of methylene-bis-phenylcarbamic acid esters and of polymethylene-polyphenylcarbamic acid esters
07/1981
07/29/1981EP0032733A1 Process for preparing polymethylene polyphenyl polycarbamates
07/28/1981CA1105941A1 4-acylamino-phenyl-ethanolamines
07/21/1981US4279718 Non-yellowing and storage stable coatings
07/21/1981CA1105480A1 Process for the preparation of diphenylmethane mono and dicarbamates and polymethylene polyphenyl carbamates by the acid rearrangement of an (alkoxycarbonyl)phenylamino-methylphenyl compound
07/14/1981US4278807 Process for production of 1-naphthyl methylcarbamate
07/08/1981EP0031650A1 Process for preparing liquid polyisocyanate compositions, and their use
07/01/1981EP0031207A1 Process for preparing liquid polyisocyanate compositions, and their use
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