Patents
Patents for C07C 265 - Derivatives of isocyanic acid (3,263)
04/1993
04/13/1993US5202358 Process for the preparation of liquid storable organic isocyanates containing carbodiimide and/or uretone imine groups and their use for the preparation of polyurethane plastics
04/09/1993CA2077793A1 Free-flowing solids based on 4, 4'-diisocyanato dicyclohexylmethane
04/06/1993CA1315799C Process for the production of polyisocyanates with biuret structures
04/01/1993WO1993006090A1 Substituted 3-phenyluracils as herbicides
04/01/1993DE4131038A1 Substituierte 3-phenylurazile Substituted 3-phenyluracils
04/01/1993CA2119036A1 Substituted 3-phenyluracils
03/1993
03/23/1993US5196572 Thermal decomposition of xylylene dicarbamate with tin and/or antimony containing catalyst
03/23/1993US5196562 Intermediates
03/17/1993EP0531803A2 Method for preventing coloration of aromatic isocyanate compounds
03/10/1993CA2077632A1 Method for preventing coloration of aromatic isocyanate compounds
03/09/1993CA1314341C Polyisocyanate mixture
03/04/1993WO1992015555A3 Fluoroalkenyl compounds and their use as pest repellents
02/1993
02/24/1993EP0528299A2 Method of recovery of polyisocyanates from distillation residues of tolueredi-isocyanate preparation
02/23/1993US5189205 Process for preparing isocyanates
02/21/1993CA2076246A1 Process for recovering polyisocyanates from the distillation residues obtained in the production of tolylene diisocyanate
02/10/1993EP0334911B1 Substituted phenyltrifluormethylethers
02/02/1993US5183932 Chemical intermediates
01/1993
01/27/1993EP0524554A2 Reactor and process for thermal clearage of carbonic acid esters
01/27/1993EP0524511A1 Process for the preparation of aqueous dispersions of blocked polyisocyanates
01/27/1993EP0524507A1 Process for the purification of polyisocyanates
01/26/1993CA1313192C Process for separating a feed mixture comprising 2,6- toluene diisocyanate and 2,4-toluene diisocyanate
01/24/1993CA2074226A1 Process for the purification of polyisocyanates, the polyisocyanates thus purified and their use
01/24/1993CA2072902A1 Aqueous dispersions of blocked polyisocyanates
01/12/1993US5179227 Warming a solid third fraction and removal of melt to obtain high purity p,p-diphenylmethanediisocyanate
12/1992
12/29/1992US5175349 Stabilization of organic polyisocyanates
12/15/1992US5171468 Aromatic polyisocyanate
12/10/1992DE4118914A1 Light coloured mixts. of di:phenylmethane di:isocyanate cpds. - and poly:phenyl poly:methylene poly:isocyanate cpds. are prepd. by treating reaction mixt. with a chloroformate and heating
12/08/1992CA1311245C Process for the separation of toluene diisocyanate contained in process residues
12/02/1992EP0515933A2 Process for the preparation of fluid and storage stable organic isocyanates containing carbodiimide uretonimino groups, and their use in the preparation of polyurethane resins
11/1992
11/26/1992DE4116658A1 Polyfunctional siloxy-alkyl ester(s) - by reaction of tri:organo:silyl ester(s) of polybasic carboxylic acids with epoxide cpds.
11/10/1992US5162575 Reacting organic base with halogenated amide in solvent
11/10/1992US5162327 Pyrimidinetrione derivatives, agents containing them and their use as agents for combating pests
11/04/1992EP0511572A1 Amine and ammonium isocyanates, method of preparation, their use in preparing ammonium group containing polymers and the polymers thus prepared
11/03/1992CA1309727C Benzoylurea derivative and its production and use
11/03/1992CA1309724C Diisocyanates and a process for their preparation
11/03/1992CA1309721C Process for the continuous production of mono- and polyisocyanates
11/02/1992CA2067401A1 Amino and ammonium isocyanates, a process for their preparation, their use for the production of polymers containing ammonium groups and the polymers thus produced
10/1992
10/28/1992EP0510459A2 Process for the preparation of poly(o-alkylurethanes) of the diphenyl methane series
10/24/1992CA2066480A1 Process for the production of poly(o-alkylurethanes) of the diphenyl methane series
10/21/1992EP0509303A1 Method of production of beta-halo-t-alkylisocyanates
10/20/1992US5157155 Benzoylurea derivative and its production and use
10/15/1992WO1992017442A1 Process for the preparation of isocyanates and carbamates using a silver salt promoted hofmann rearrangement
10/14/1992EP0508279A1 Method of production of beta-halo-t-alkylisocyanates
10/14/1992EP0508216A1 Method for the conditioning and/or purification of organic isocyanates
10/01/1992DE4110052A1 Modified diene] rubbers with thermoplastic elastomer properties - are prepd. by addn. reaction of diene rubber, e.g. EPDM or polybutadiene, with 4-(3,5-di:carboxy-phenyl)-1,2,4-triazoline-3,5-di:one
09/1992
09/29/1992US5151535 Fluorine-containing α,β-bifunctional compounds and process for their production
09/23/1992EP0505316A2 Diisocyanates, diurethanes and diureides from dehydroabietic acid
09/22/1992US5149805 Blocked with caprolactam, methyl ethyl ketoxime or diisobutyl ketoxime
09/17/1992WO1992015555A2 Fluoroalkenyl compounds and their use as pest repellents
09/17/1992CA2104005A1 Fluoroalkenyl compounds and their use as pest repellents
09/16/1992CN1064479A Fluoroalkenyl compounds and their use as pest repellents
09/09/1992EP0502307A2 Substituted 4,5-diamino-1,2,4-triazol-3-(thi)ones
09/08/1992CA1307285C Process for the production of isocyanates
09/02/1992CN1064074A Process for reducing hydrolyzable chloride in toluene diisocyanate
09/01/1992US5143944 Nonfugitive catalyst, high activity
08/1992
08/05/1992EP0497538A2 Process for reducing hydrolyzable chloride in toluene diisocyanate
07/1992
07/29/1992EP0496347A2 Methods of preparing fluorobenzene derivatives and related compounds
07/21/1992US5132335 Acrylic and methacrylic esters of substituted 1,2-bis(phenoxy)-3,3,4,4,5,5-hexafluoro-1-cyclopentenes
07/14/1992US5130466 Formation of a polyurethane from a diisocyanate containing an ester group
07/14/1992CA1305165C Process for the preparation of (cyclo)aliphatic diisocyanates
07/14/1992CA1305162C Process for the production of isocyanates
07/01/1992EP0492556A1 Continuous process for the preparation of isocyanates
07/01/1992EP0492145A2 Process for producing xylylene diisocyanate
06/1992
06/30/1992US5126479 Process for the production of blocked polyisocyanates containing carbodiimide groups, the polyisocyanates obtainable by this process and their use for the production of plastics
06/30/1992US5126426 Catalytic hydrogenation of aromatic diamine
06/30/1992CA1304399C Process for the purification and the isolation of isocyanate condensates by liquid or supercritical co _extraction
06/30/1992CA1304392C Process for the preparation of substituted 3,5- dichloro-2,4-difluoro-benzenes
06/16/1992CA1303623C Preparation of cyclohexyl mono- and diurethanes and isocyanates derivedtherefrom by addition of methylcarbamates to limonene, process and compositions
05/1992
05/26/1992US5117048 Process for the continuous preparation of monoisocyanates or polyisocyanates
05/06/1992CN1060836A Fractionation process of reaction mixture containing methylene bridged polyphenylene polyisocyanate
04/1992
04/29/1992EP0482490A2 Fractionation process of reaction mixture containing methylene bridged polyphenylene polyisocyanate
04/21/1992US5107017 Insecticides
04/15/1992EP0480493A2 Processes for the preparation of nitrogen-containing compounds
03/1992
03/24/1992US5098983 Uretidone and isocyanurates and polyurethane/ureas
03/21/1992CA2051594A1 Processes for the preparation of nitrogen-containing compounds
03/17/1992US5096994 Low viscosity
03/17/1992US5096928 Insecticidal substituted benzoyl(thio) ureas
03/17/1992CA1297490C Preparation of a novel diisocyanate from norbornadiene
03/17/1992CA1297488C Method of preparation of novel 2-(alkoxymethyl)- pentane-1,5-diisocyanates, 2-(alkoxymethyl)-pentane-1, 5-diurethanes, and 2-(alkoxymethyl)-pentane-1,5- dicarbamic acid chlorides and their uses
03/10/1992US5095147 2,2-difluorocyclopropyl derivatives
03/10/1992CA1297118C Preparation of novel aliphatic diisocyanate from styrene
03/04/1992EP0473290A2 Multilayer reverse osmosis membrane of polyamide-urea
02/1992
02/25/1992US5091553 Reacting adduct of isocyanic acid and tertiary amine with unsaturated compound
02/25/1992CA1296350C 6-isocyanato caproic acid (3-isocyanato-2,2-dimethyl-1- propyl)-ester
02/18/1992US5089639 N-cycloalkylalkylamines, process for their preparation, their use as a medicament and their synthesis intermediates
02/18/1992CA1296016C Process for the preparation of isophorone diisocyanate from isophorone dicarbamyl esters using highly selective sno_or cuo catalysts
02/12/1992EP0470711A1 Fungicides
02/11/1992US5087739 From diamines, urea, alcohols and by-products from thermal cracking
02/04/1992CA1295338C Process for the preparation of organic isocyanates
01/1992
01/22/1992EP0467125A1 Process for the preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates with a reduced iodic colorimetric measure
01/14/1992US5081288 Process for the preparation of substituted 3,5-dichloro-2,4-difluoro-benzenes
01/07/1992US5078980 Process for the removal of isocyanic acid from a mixture of isocyanic acid and ammonia
12/1991
12/10/1991US5071853 Amine-substituted hexahydroindeno(2,1-b)pyrroles, -indeno(2,1-c)pyridines or -indeno(2,1-d)azepines; cerebral ischemia or infarction
11/1991
11/12/1991CA1292006C Process for the production of diisocyanates, selected diisocyanates produced thereby and the production of polyurethane plastics therefrom
11/06/1991CN1014606B Continuous preparation method of monoisocyanate or polyisocyanate
10/1991
10/31/1991CA2041411A1 Stack emission control system for removing organic pollutants from air
10/30/1991EP0453914A2 Melt crystallization process for preparing high trans, trans-isomer containing 4,4'-diisocyanato dicyclohexylmethane
10/25/1991CA2039544A1 Melt crystallization process for preparing high trans,trans-isomer containing 4,4'-diisocyanato dicyclohexylmethane
10/22/1991CA1291151C N-benzoyl-n'-3,5-dichloro-4-hexafluoropropyloxy-phenylureas
10/22/1991CA1291150C Process for the preparation of alkoxycarbonyl isocyanates
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