| Patents for C07C 68 - Preparation of esters of carbonic or haloformic acids (3,588) |
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| 02/08/1996 | WO1996003366A1 2-(2,4,6-trimethyl phenyl)cyclopentane-1,3-dione derivatives |
| 02/07/1996 | CN1116199A Process for preparing carbonate esters |
| 02/06/1996 | US5489703 Reaction extraction of alkyl carbonate |
| 02/06/1996 | US5489702 Reacting alkanediol with urea in presence of catalyst to form cyclic carbonate, reacting with alcohol in presence of catalyst to form dialkyl carbonate and alkanediol, recycling |
| 02/06/1996 | US5489696 Process for purifying ethylene glycol carbonate (EGC) by adsorption on activated carbon |
| 01/23/1996 | US5486642 Process for the production of carbonic acid esters |
| 01/10/1996 | EP0691326A1 Process for the preparation of aryl carbonates |
| 01/10/1996 | EP0691325A1 Asymmetric hydrogenation of ketoisophorone derivatives |
| 12/26/1995 | US5478962 Process for the synthesis of dimethylcarbonate |
| 12/26/1995 | US5478961 Process for preparting aryl carbonates |
| 12/20/1995 | EP0687667A1 Vinyl monomer having linear carbonate and hydroxyl groups |
| 12/20/1995 | EP0687666A1 Process for purifying diphenyle carbonate |
| 12/19/1995 | US5476959 Process for the preparation of dialkyl carbonates |
| 12/06/1995 | EP0685455A1 Catalyst for aryl ester production and process for producing aryl ester therewith |
| 12/06/1995 | EP0685453A1 Method for removing acidic and salt impurities from the condensed phase from the reaction effluent in a process for dimethyl carbonate synthesis |
| 12/06/1995 | EP0685452A1 Method for removing the acidic impurities contained in a vapourized stream composed by organic vapours and water |
| 12/05/1995 | US5473094 Reaction of aromatic monohydroxy compounds with phosgene or aromatic chloroformates in the presence of aluminum oxide catalysts |
| 11/29/1995 | EP0684221A1 Process for preparing carbonate esters |
| 11/22/1995 | CN1112107A Process for the continuous preparation of diaryl carbonates |
| 11/14/1995 | US5466856 Method of producing carbonic diesters |
| 11/07/1995 | US5464930 Article for use in optical application formed from linear polycarbonate resins |
| 10/31/1995 | US5463102 Process for the continuous production of aryl carbonates |
| 10/25/1995 | EP0678498A2 Process for the purification of ethyleneglycol carbonate through adsorption on active carbon |
| 10/18/1995 | CN1030073C Process for preparing aromatic carbonate |
| 10/12/1995 | DE4411668A1 Prepn. of carboxylic acid esters |
| 10/11/1995 | CN1109876A Process for the preparation of acid chloride compounds |
| 10/10/1995 | US5457213 Reacting alcohol, carbon monoxide and oxygen in presence of cobalt-containing catalyst and coadjuvant |
| 10/03/1995 | US5455368 Process for separating off methanol from a mixture of dimethyl carbonate and methanol |
| 09/28/1995 | DE19510909A1 Di:methyl carbonate prodn. from mixt. of methanol and carbon mon:oxide |
| 09/27/1995 | CN1109043A Sclareol derivatives |
| 09/21/1995 | WO1995025083A1 Process for the preparation of aryl haloformates and diaryl carbonates |
| 09/21/1995 | DE4408697A1 Sepn. of di:methyl carbonate and methanol from mixt. by pervaporation |
| 09/12/1995 | US5449806 Process for the preparation of dialkyl carbonates |
| 09/12/1995 | US5449791 Process for the preparation of propylene glycol carbonate |
| 09/06/1995 | CN1107834A Process for working up the liquid reaction products from the Cu-catalysted preparation of dimethyl carbonate |
| 09/06/1995 | CN1107833A Process for preparing diaryl carbonates |
| 08/29/1995 | US5446110 Carbonate modified polyester polyol |
| 08/23/1995 | EP0667851A1 Method for preparing di(organo) esters of pyrocarbonic acid. |
| 08/16/1995 | EP0667336A1 Process for the continuous preparation of diaryle carbonates |
| 08/16/1995 | CN1106791A Process for the preparation of diaryl carbonates |
| 08/09/1995 | EP0500786B1 Process and catalyst for production of aromatic carbonates |
| 08/09/1995 | CN1106376A Process for the production of aryl carbonates |
| 08/08/1995 | US5440066 Process for splitting polycarbonates |
| 08/03/1995 | CA2141391A1 Process for the continuous preparation of diaryl carbonates |
| 07/25/1995 | US5436362 Method of producing dialkylcarbonate |
| 07/19/1995 | EP0663388A1 Method of producing aromatic carbonate |
| 07/12/1995 | CN1105015A Process for the preparation of dialkyl carbonates |
| 07/04/1995 | US5430170 Process for preparing dialkyl carbonates |
| 06/29/1995 | WO1995017371A1 Catalyst for aryl ester production and process for producing aryl ester therewith |
| 06/29/1995 | WO1995017369A1 Process for manufacturing dialkyl carbonate from urea and alcohol |
| 06/28/1995 | EP0659732A1 Novel carbonate derivatives |
| 06/28/1995 | EP0659731A1 Process for the preparation of dimethyl carbonate |
| 06/28/1995 | CN1104206A Process for the preparation of dialkyl carbonates |
| 06/28/1995 | CN1104205A Process for the preparation of dimethyl cxarbonate |
| 06/24/1995 | CA2138604A1 Process for preparing dimethyl carbonate |
| 06/23/1995 | CA2138746A1 Sclareol derivatives |
| 06/21/1995 | EP0658536A1 Process for the separation of methanol from a mixture of dimethyl carbonate and methanol |
| 06/21/1995 | CN1103862A Process for the preparation of dimethyl carbonate |
| 06/21/1995 | CN1103861A Process for the preparation of dialkyl carbonates |
| 06/20/1995 | US5426209 Reacting carbon monoxide with esters of nitrous acid and chloroformic acid in presence of solid catalyst containing group 8 metal or compound |
| 06/20/1995 | US5426207 Continuous production process of diarylcarbonates |
| 06/16/1995 | CA2137869A1 Process for separating off methanol from a mixture of dimethyl carbonate and methanol |
| 06/14/1995 | EP0657414A1 Process for preparing Dialkyl dicarbonates |
| 06/13/1995 | US5424473 Contacting a phenol with a carbonyl halide in the presence of a phosphorus-containing compound |
| 06/07/1995 | CN1103399A Process for purifying diaryl carbonates background of the invention |
| 05/31/1995 | EP0655433A1 Process for continuously producing dimethyl carbonate |
| 05/31/1995 | EP0655432A1 Process for continuously producing dimethyl carbonate |
| 05/31/1995 | CN1103062A Method for recovering bis hydroxy aromatic organic values and bis ary carbonate values from scrap aromatic polycarbonate |
| 05/30/1995 | US5420331 Dissolution inhibitors |
| 05/25/1995 | CA2136289A1 Process for working up the liquid reaction products from the cu-catalysed preparation of dimethyl carbonate |
| 05/24/1995 | EP0654462A1 Process for the treatment of liquid reaction products from the Cu-catalyzed production of dimethyle carbonate |
| 05/24/1995 | EP0654461A1 Process for the preparation of diaryle carbonates |
| 05/24/1995 | DE4339697A1 Di:aryl-carbonate prepn. from carbon mon:oxide, oxygen@ and e.g. phenol |
| 05/24/1995 | CN1102826A improved synthetic method of dialkyl carbonate |
| 05/23/1995 | CA2135656A1 Process for preparing diaryl carbonates |
| 05/09/1995 | US5414104 Process for preparing dialkyl carbonates |
| 05/08/1995 | EP0667851A4 Method for preparing di(organo) esters of pyrocarbonic acid. |
| 04/27/1995 | WO1995011226A1 Substituted benzene derivatives, processes for their production and biocidal composition for control of harmful organisms containing them |
| 04/11/1995 | US5405986 Catalyst and method for producing carbonic diesters |
| 04/06/1995 | CA2133612A1 Process for the preparation of acid chloride compounds |
| 04/05/1995 | EP0646566A1 Process for the preparation of acid chloride compounds |
| 04/04/1995 | US5403949 Method of producing carbonic acid diester |
| 03/29/1995 | EP0645364A1 Process for the preparation of aryle carbonates |
| 03/28/1995 | US5401868 Aryloxymethylcarbonochloridate ester intermediates for use in synthesizing pro drugs and their use therefor |
| 03/22/1995 | EP0561846B1 4,5-dihydroxy- and 4,5,8-trihydroxy- 9,10-dihydro-9,10-dioxo-2-anthracenecarboxylic acid dicarbonates and urethans having therapeutical activities |
| 03/22/1995 | CN1100405A Method for recovering active principle from chloro-toluene raffinate |
| 03/21/1995 | US5399734 Reaction of phenol, oxygen, carbon monoxide, maintaining gas pressure throughout reaction, diphenyl carbonate |
| 03/21/1995 | US5399657 Purity, phenyl chloroformates as chain stoppers in preparation of polycarbonates |
| 03/15/1995 | CN1100089A Process for preparing dialkyl carbonates |
| 03/14/1995 | US5397846 Process for preparing organic compounds carrying tert-butyloxycarbonyl groups |
| 03/14/1995 | US5397679 Cyclic carbonate compounds, method for producing the same and positive photoresist composition using the same |
| 03/08/1995 | EP0641758A2 Method for recovering bis hydroxy aromatic organic values and bis aryl carbonate values from scrap aromatic polycarbonate |
| 03/07/1995 | US5395949 Process and catalyst for preparing organic carbonates |
| 02/21/1995 | US5391803 Production of dimethyl carbonate using copper zeolite catalysts |
| 02/21/1995 | US5391802 Catalytic ester interchange with phenols, crystallization of bisphenol, flash distillation, recovering diarylcarbonates |
| 02/16/1995 | WO1995004796A1 Depolymerization process |
| 02/15/1995 | EP0638541A1 Process for the production of dialkyl carbonate |
| 02/07/1995 | US5387708 Production of dialkyl carbonates using copper catalysts |
| 02/07/1995 | US5387374 With branched alkyl radicals containing from 16 to 20 carbon atoms |
| 02/01/1995 | EP0636620A1 Method for obtaining purified ethyleneglycol carbonate |