| Patents for C07C 68 - Preparation of esters of carbonic or haloformic acids (3,588) |
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| 08/19/1998 | CN1190647A Method of purifying dipheryl carbonate-phenol adduct |
| 08/18/1998 | US5795952 Reacting a polyether glycol with dimethyl carbonate in presence of a basic catalyst; transesterification |
| 08/12/1998 | EP0857716A1 Method of purifying diphenyl carbonate-phenol adduct |
| 08/11/1998 | US5792883 Catalytic decarbonylation of diaryl oxalate in presence of phosphines or phosphoniums or phosphorus oxides catalyst and an organic halide compound to form diaryl carbonate |
| 07/29/1998 | EP0855384A1 Process for the preparation of aromatic carbonate |
| 07/29/1998 | EP0854853A1 Process for producing dialkyl carbonates |
| 07/22/1998 | EP0854132A1 Process for the preparation of aromatic carbonic ester |
| 07/16/1998 | WO1998030533A1 Method for the preparation of alpha-chlorinated chloroformates |
| 07/16/1998 | CA2278156A1 Method for the preparation of alpha-chlorinated chloroformates |
| 07/14/1998 | US5780663 Process for producing carbonic acid diester |
| 07/08/1998 | CN1186801A Synthesis method of diester carbonate |
| 07/07/1998 | US5777162 Intermediates for the preparation of fungicides |
| 07/01/1998 | EP0850914A1 Carbonic acid 3-methoxycarbonyl-oxl-2,2,4,4-tetramethyl-cyclo-butyl ester methyl ester and method making therefor |
| 06/30/1998 | US5773643 Process for preparation of isocyanate compounds |
| 06/16/1998 | US5767303 Process of producing carbonic diester |
| 06/09/1998 | US5763560 Treating benzaldehyde derivative with zinc and active chloride in an organic solvent |
| 06/02/1998 | US5760273 Reacting first symmetrical carbonic acid ester with second symmetrical carbonic acid ester or with monohydric alcohol in presence of catalyst comprising oxide of group iiib element |
| 06/02/1998 | US5760272 Reacting a hydroxyaromatic compound with oxygen and carbon monoxide in presence of a catalyst mixture |
| 05/28/1998 | DE19749860A1 Di:aryl carbonate preparation by simple process without using phosgene |
| 05/26/1998 | US5756801 Method of purifying diphenyl carbonate-phenol adduct |
| 05/20/1998 | EP0842685A1 Reaction distillation apparatus and reaction distillation method |
| 05/13/1998 | CN1181374A Preparation of diaryl carbonate |
| 05/13/1998 | CN1181373A Preparation of diaryl carbonate |
| 05/12/1998 | US5750759 Contacting oxygen, carbon monoxide, ether, alkanol with catalyst blend |
| 05/12/1998 | US5750758 Pyrocarbonic acid diesters and the preparation and use thereof |
| 04/29/1998 | EP0837893A1 Production and use of liquid oligocarbonates derived from dimer diols |
| 04/22/1998 | CN1179415A Process for producing diaryl carbonate |
| 04/22/1998 | CN1179414A Catalyst for decarbonylation reaction |
| 04/21/1998 | US5741829 Radiation-curable acrylates with built-in photoinitiators |
| 04/15/1998 | CN1178718A Method for producing diester carbonate |
| 04/14/1998 | US5739258 Process for preparing diaryl carbonates and the polycarbonates obtainable therefrom |
| 04/09/1998 | DE19727163A1 Selective non-corrosive preparation of carbonic di:ester(s) by oxidative carbonylation |
| 04/08/1998 | EP0834496A1 Preparation of diaryl carbonate |
| 04/08/1998 | EP0834495A1 Process for preparing diaryl carbonate |
| 04/01/1998 | EP0832872A1 Process for producing diaryl carbonate |
| 03/31/1998 | US5734004 Monophenols are halogenated, ester interchanged, or reacted with carbon monoxide; continuous distillation; by-product inhibition |
| 03/24/1998 | US5731453 Process for producing a diaryl carbonate |
| 03/11/1998 | EP0827948A1 Mixtures of cyclic oligocarbonates, process for their preparation and use thereof |
| 03/10/1998 | US5726340 Method of producing aromatic carbonate |
| 03/04/1998 | EP0826658A1 Catalyst for decarbonylation reaction |
| 02/19/1998 | DE19632482A1 Colourless or light coloured acyl sarcosinate(s) used in e.g.. detergents or cosmetics |
| 02/04/1998 | CN1172102A Method for synthesis of chloro-formic acid trichloromethyl ester by using ultraviolet high-pressure mercury lamp |
| 02/03/1998 | US5714627 Method for preparing aromatic carbonate |
| 01/29/1998 | DE19731206A1 Thermally efficient production of carbonic di:ester from alcohol |
| 01/28/1998 | CN1171775A Fluorobutenyl esters |
| 01/27/1998 | US5712407 Method for the preparation of alpha-chlorinated chloroformates |
| 01/27/1998 | US5712406 Oxidative carbonylation of alcohols to form carbonates |
| 01/20/1998 | US5710310 Carbonation of phenols by reaction of phosgene with phenol |
| 01/14/1998 | CN1169983A Process for continuous production of aryl carbonates |
| 01/07/1998 | CN1169422A Process for producing diaryl carbonates |
| 01/06/1998 | US5705673 Reaction of phenol and dimethyl carbonate in the presence of ester exchange catalysts |
| 01/02/1998 | DE19726057A1 Fine, abrasion-resistant, strong particles containing activated charcoal, suitable for fluidised bed reactor |
| 12/31/1997 | CN1168881A Recovery of catalyst systems from diaryl carbonate-containing reaction solutions by suspension crystallization |
| 12/31/1997 | CN1168880A Recovery of catalyst systems from diaryl carbonate-containing reaction mixtures by melt crystallization |
| 12/31/1997 | CN1168879A Process for continuous prodn. of diaryl carbonates |
| 12/18/1997 | WO1997047586A1 Process for the preparation of aromatic carbonic ester |
| 12/18/1997 | WO1997047583A1 Process for producing dialkyl carbonates |
| 12/18/1997 | DE19623508A1 Verfahren zur Herstellung von Dialkylcarbonaten A process for the preparation of dialkyl carbonates |
| 12/17/1997 | CN1167755A Process for continuous production of aryl carbonates |
| 12/17/1997 | CN1167754A Process for preparing diaryl carbonates and polycarbonates obtainable therefrom |
| 12/17/1997 | CN1167652A Process for reactivating catalyst systems containing platinum metal |
| 11/27/1997 | WO1997044108A1 Reaction distillation apparatus and reaction distillation method |
| 11/26/1997 | EP0808821A2 Process for the continuous preparation of aryl carbonates |
| 11/19/1997 | EP0807619A1 Process for the production of diaryl carbonates |
| 11/18/1997 | US5688984 Porous lithium aluminate carrier of spinel structure for catalyst |
| 11/13/1997 | DE19715907A1 Carbonate di:ester preparation by oxidative carbonylation of alcohol |
| 11/12/1997 | EP0806243A1 Method for reactivation of a platinum group metal catalytic system |
| 11/12/1997 | CN1164529A Process for preparing diaryl carbonate |
| 11/11/1997 | US5686644 Cuprous halide, hydrochloric acid |
| 11/11/1997 | US5685957 Method for removing acidic and salt impurities from an aqueous condensed phase containing dimethylcarbonate |
| 11/05/1997 | EP0805132A1 Method of producing styrene derivatives |
| 10/28/1997 | CA2013689C Process for producing diaryl carbonate |
| 10/27/1997 | CA2175125A1 Method of producing styrene derivatives |
| 10/21/1997 | US5679825 Reacting aromatic monohydroxy compounds with phosgene or chlorocarbonates of aromatic monohydroxy compounds in presence of heterogeneous catalyst |
| 10/15/1997 | EP0801053A1 Recovery of catalyst components from diarylcarbonate containing reaction solutions by suspension cristallization |
| 10/15/1997 | EP0801052A1 Recovery of catalyst components from diarylcarbonate containing reaction mixtures by melt crystallization |
| 10/15/1997 | EP0801051A1 Process for the continuous production of diaryl carbonates |
| 10/08/1997 | CN1161323A Process for purification of carbonic acid diaryl ester |
| 10/01/1997 | EP0798327A2 Two-stage process for the preparation of polycarbonate copolyether diols |
| 09/30/1997 | US5671756 Alkyl sclareol diol carbonates in tobacco |
| 09/24/1997 | CN1160039A Process for continuous production of diaryl carbonates |
| 09/17/1997 | EP0795539A1 Process for producing a diaryl carbonate |
| 09/17/1997 | EP0667851B1 Method for preparing di(organo) esters of pyrocarbonic acid |
| 09/17/1997 | CN1159442A Method for preparation aromatic carbonic ether |
| 09/16/1997 | CA2076157C Catalyst used for producing carbonic acid esters and methods of producing carbonic acid esters using the same |
| 09/10/1997 | EP0794168A1 Process for the preparation of diarylcarbonates and from these obtainable polycarbonates |
| 09/10/1997 | CN1158838A Method of extractive separation of diaryl carbonates and original aromatic hydroxy compounds from reaction solutions |
| 09/02/1997 | US5663480 Synthesis of aromatic carbonates by transesterification using a catalyst comprising a microporous material and a group IV metal |
| 09/02/1997 | US5663408 From phenol, carbon monoxide, and oxygen |
| 09/02/1997 | US5663406 Formation of carbonate esters and orthocarbonates |
| 08/27/1997 | EP0791574A1 Process for the continuous preparation of aryl carbonates |
| 08/27/1997 | CN1157813A Continuous manufacturing method for aromatic carbonates |
| 08/20/1997 | EP0790231A1 Process for the extractive separation of diaryl carbonates and corresponding hydroxyaromatic compounds from reactive solutions |
| 08/20/1997 | EP0789683A1 Fluorobutenyl esters and their use for controlling animal pests |
| 08/19/1997 | US5658989 Coatings, hydrolysis resistance |
| 08/13/1997 | CN1156720A Constant boiling agent for separating dimethyl carbonate and constant boiling distillation process |
| 07/23/1997 | EP0785184A1 Continuous process for the preparation of phenyl methyl carbonate |
| 07/22/1997 | US5650369 Catalysts used for producing carbonic acid esters and methods of producing carbonic acid esters using the same |
| 07/16/1997 | EP0784048A1 Process for purifying diaryl esters of carbonic acid |
| 07/16/1997 | CN1154357A Method for making diaryl carbonate |