Patents
Patents for C07C 68 - Preparation of esters of carbonic or haloformic acids (3,588)
07/1997
07/15/1997US5648510 Decarbonylation of oxalate
07/03/1997WO1997023445A1 Process for continuously preparing dialkyl carbonates and diols
07/02/1997EP0781760A1 Continuous manufacturing method for aromatic carbonates
06/1997
06/25/1997EP0780361A1 Manufacturing method for aromatic carbonates
05/1997
05/21/1997EP0773920A1 2-(2,4,6-trimethyl phenyl)cyclopentane-1,3-dione derivatives
05/20/1997US5631396 Process for continuously producing dimethyl carbonate
05/20/1997US5631395 Adsorption
05/06/1997US5627301 Reacting bisphenol with dialkyl carbonate in presence of organotin or organotitanium catalyst
04/1997
04/29/1997US5625091 Process for the production of diaryl carbonates
04/16/1997CN1147503A Process for purifying diaryl carbonates
04/16/1997CN1147424A Porous lithium aluminate carrier of spinel structure for catalyst
04/02/1997CN1146446A Method for preparation of diaryle ster carbonate
04/01/1997US5616771 Reacting phosgene with a phenol compound in the presence of a cyclic urea catalyst
03/1997
03/27/1997WO1997011049A1 Process for the preparation of aromatic carbonate
03/26/1997EP0764628A1 Diesters of pyrocarbonic acid, their preparation and their use
03/05/1997EP0760359A1 Method for preparing aromatic carbonate
03/04/1997CA2051484C Decarboxylation processes using mixed metal oxide catalysts
02/1997
02/19/1997CN1143071A Method for preparing diaryl ester carbonate
02/11/1997US5602271 Process for the preparation of aryl carbonates
02/05/1997EP0757030A1 Process for purifying diaryl carbonates
02/05/1997EP0757029A1 Process for the continuous preparation of diaryl carbonates
02/04/1997US5600047 Process for producing optically active olefin
02/04/1997US5599965 Process for the preparation of dialky carbonates
01/1997
01/30/1997WO1997003104A1 Production and use of liquid oligocarbonates derived from dimer diols
01/16/1997DE19525406A1 Herstellung und Verwendung hochviskoser Oligocarbonate aus Dimerdiol Production and use of highly viscous oligocarbonates from dimerdiol
01/15/1997EP0623584B1 Process for producing carbonic diester
01/08/1997EP0752408A2 Radiation curable acrylates incorporating photoinitiators
01/08/1997EP0606251B1 Fungicides
01/08/1997CA2180673A1 Radiation-curable acrylates with built-in photoinitiators
01/07/1997US5591883 Substitution of amines in ureas for nitrogen groups and reaction of ureas with alcohols to form carbamates then reaction of carbamates to form carbonates
01/01/1997CN1139107A Method for recovering phenol and xanthene values from waste polycarbonate
12/1996
12/27/1996EP0749955A1 Process for preparing diaryl carbonates
12/25/1996CN1138500A Coordinate catalyst in use for CO2 for synthetizing carbonate
12/24/1996CA2179581A1 Process for the production of diaryl carbonates
12/17/1996US5585513 Fungicides
12/04/1996EP0745580A1 Process for purifying diarylcarbonates using aluminosilicates
12/03/1996US5580951 Reacting dihydroxy compound with carbonic acid derivative and chain terminator containing hydroxy group
11/1996
11/27/1996EP0744213A1 Porous lithium aluminate carrier of spinel structure for catalyst
11/20/1996EP0743298A1 Process for the preparation of aryl chloroformates
11/13/1996EP0742198A1 Process for continuously producing dimethyl carbonate
10/1996
10/29/1996US5569408 New water-soluble, biologically decomposable carbonic acid polyesters and their use as preparing and slip additives of synthetic fibres
10/23/1996EP0738702A1 Method for recovering phenol and xanthene values from waste polycarbonate
10/22/1996US5567829 Method for recovering phenol and xanthene values from waste polycarbonate
10/16/1996EP0737665A1 Process for preparation of diaryl carbonate
10/15/1996US5565605 Reacting an ester with aromatic alcohol in presence of transestrification catalyst to form aryl ester
10/15/1996US5565603 Process for manufacturing dialkyl carbonate from urea and alcohol
10/09/1996EP0736512A1 Method of producing aromatic carbonate
10/09/1996EP0736511A1 Process for the preparation of diaryl carbonates
10/09/1996EP0736325A2 Supported platinum catalysts and process for the preparation of diaryle carbonates
10/09/1996EP0736324A2 Supported platinum catalysts and process for the preparation of diaryle carbonates
10/01/1996US5561094 Dialkyl isocyanato tin alcoholate catalysts and dimers thereof
09/1996
09/25/1996CN1131660A Direct synthesis method of dimethyl carbonate
08/1996
08/27/1996US5550279 Method of controlling reactions
08/27/1996US5550278 Process for working up the liquid reaction products from the cu-catalysed preparation of dimethyl carbonate
08/21/1996EP0727409A1 Method for producing carbonic diesters
08/06/1996US5543559 Using a rhodium catalyst having an optically active piphosphine ligand
08/06/1996US5543548 Continuous vapor phase reaction of carbon monoxide and methyl nitrite using a heterogeneous catalyst of platinum; heating and pressurization; reacting nitrogen oxide product with oxygen and methanol to form usable methyl nitrite
08/06/1996US5543547 Method of producing aromatic carbonate
08/06/1996US5543546 Ester interchange of carbonate ester and aromatic hydroxycompound
07/1996
07/31/1996CN1127741A Asymmetrical hydrogenation of ketoisophorone derivatives
07/24/1996EP0722931A1 Method for preparing high purity diphenyl carbonate
07/24/1996EP0722930A1 Process for producing aryl carbonates
07/16/1996US5536864 Process for producing dimethyl carbonate and apparatus suitable for such purpose
07/10/1996EP0720979A1 Method for making diaryl carbonate
07/09/1996US5534649 Reacting urea, methyl carbamate, ethyl carbamate with methanol, ethanol using quarternary ammonium catalyst
07/09/1996US5534648 Process for continuously producing dimethyl carbonate
07/09/1996US5534647 Crosslinked thermosetting coating
06/1996
06/18/1996US5527968 Hydroxy-terminated linear carbonate produced by catalyticreaction of cyclic alkylene carbonate with substance havingone alcoholic hydroxyl group
06/18/1996US5527943 Method for removing acid and saline contaminants from a gaseous stream leaving a dimethylcarbonate synthesis reactor
06/18/1996US5527942 Process for the production of aryl carbonates
06/12/1996CN1124245A A process for preparing aryl carbonates
06/04/1996US5523481 Catalyzing a halogenoformic ester with alkli compound in presence of benzylalkyldimethylammonium halide catalyst and water-immiscible solvent
06/04/1996US5523452 Process for preparing dimethyl carbonate
06/04/1996US5523451 Process for the continuous preparation of aryl carbonates
05/1996
05/29/1996EP0713518A1 Depolymerization process
05/17/1996WO1996014289A1 Fluorobutenyl esters and their use for controlling animal pests
05/17/1996CA2204241A1 Fluorobutenyl esters and their use for controlling animal pests
05/15/1996EP0711751A1 Process for the preparation of intermediates for oxime ether- or 2-phenyl-3-methyl propenoate-fungicides
05/09/1996DE4439335A1 Kohlensäure- und Carbamidsäurefluorbutenylester Carbon dioxide and Carbamidsäurefluorbutenylester
05/08/1996CN1121914A A process for preparing aryl carbonates
05/07/1996US5514829 From carbon monoxide and methyl nitrite
05/01/1996EP0709363A1 Process for preparing carbonate compounds
04/1996
04/30/1996US5512528 Catalysts used for producing carbonic acid esters and methods of producing carbonic acid esters using the same
04/24/1996CN1121065A Process for the preparation of aryl carbonates
04/23/1996US5510499 Process for the isolation of purified ethylene glycol carbonate (EGC)
04/17/1996EP0563069B1 Guerbet carbonates
04/16/1996US5508442 Reacting carbon dioxide with ethylene oxide or propylene oxide(also present as reaction medium) in bubble column having preferred ratio of height to diameter
04/03/1996CN1119640A Method for preparation of carbonic ester compound
04/02/1996US5504238 Reacting alkali aryloxide and cuprous halide, adding carbon disulfide and hydrolyzing the tetraaryl orthocarbonate in a solution of acid catalyst
03/1996
03/30/1996CA2133231A1 Process for preparing carbonate compounds
03/26/1996US5502232 Reacting aaromatic hydroxy compounds with carbon monoxide and o2 over noble metal catalyst
03/26/1996US5501862 Alkyl carbonate derivatives of sclareol diol
03/20/1996CN1118779A Process for the isolation of purified ethylene glycol carbonate (EGC)
03/12/1996US5498789 Method of producing aromatic carbonate
03/12/1996US5498744 Process for the preparation of dimethyl carbonate
03/12/1996US5498743 Process for producing dialkylcarbonates
03/12/1996US5498742 Process for the continuous preparation of diaryl carbonates
03/12/1996US5498319 Fractional distillation
03/06/1996CN1118159A Catalyst for aryl ester production and process for producing aryl ester therewith
02/1996
02/27/1996US5495038 Process for the purification of diphenyl carbonate
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