| Patents for C07C 68 - Preparation of esters of carbonic or haloformic acids (3,588) |
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| 07/30/2008 | EP1948587A2 Process for making diaryl carbonate |
| 07/30/2008 | EP1948586A1 Method for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates |
| 07/30/2008 | CN101229491A Method of preparing pervaporation film preferential penetrating methyl carbonate |
| 07/23/2008 | EP1947080A2 Process for preparation of dialkyl carbonate |
| 07/23/2008 | EP1945354A1 A novel transesterification catalyst and a process for the preparation thereof |
| 07/23/2008 | CN101225046A Method for producing di(trichloromethyl) carbonate by semi-continuous process |
| 07/23/2008 | CN100404493C Process for the preparation of propylene glycol |
| 07/23/2008 | CN100404096C Reaction rectifying tower for producing dimethyl carbonate by using urea alcoholysis method |
| 07/17/2008 | WO2008084086A1 Method for the production of o-vinylcarbamates and vinylcarbonates |
| 07/16/2008 | CN101219954A Method for producing dimethyl carbonate and di(trichloromethyl) carbonic acid ester with phosgene |
| 07/16/2008 | CN100402120C Reactor for gas/liquid or gas/liquid/solid reactions |
| 07/10/2008 | WO2008080832A2 Carbonitrides as catalysts |
| 07/09/2008 | EP1941946A1 Carbonitrides as catalysts |
| 07/09/2008 | CN100400500C Technology of separating dimethyl carbonate from dimethyl carbonate and methanol and water |
| 07/09/2008 | CN100400495C Process for the preparation of alkanediol |
| 07/02/2008 | CN101213166A Method for the preparation of aromatic chloroformates |
| 07/02/2008 | CN100398509C Solventless preparation of ester-substituted diaryl carbonates |
| 06/18/2008 | CN101200428A Polyatomic alcohol group dialkyl carbonate oil and preparation method thereof |
| 06/18/2008 | CN100395026C Method for preparing porous solid alkali |
| 06/18/2008 | CN100395019C Catalyst used for synthesizing dimethyl carbonate from ured and methanol and its preparation method and application |
| 06/11/2008 | CN101198580A Processes for production of carbonic esters |
| 06/11/2008 | CN101195095A Organic acid base catalyst for synthesizing aryl ester carboxylic acid by interesterification |
| 06/10/2008 | US7385070 Contacting alkylene carbonate with C1-C5 aliphatic alcohol, water, or mixture of both in the presence of a mixed oxide catalyst of magnesium and aluminum to perform alcoholysis/hydrolysis producing dialkyl carbonate, alkylene glcyol, CO2 |
| 06/04/2008 | EP1927583A1 Process for production of dialkyl carbonate and diol |
| 06/04/2008 | CN101190885A Technique for preparing dimethyl carbonate |
| 06/04/2008 | CN101190884A Method for synthesizing dimethyl oxalate and coproducing dimethyl carbonate |
| 06/04/2008 | CN100391600C Catalyst for synthesizing methyl carbonate and method for preparing the same |
| 05/28/2008 | CN101185902A Catalyst for carbonylsynthesizing diethyl carbonate byethanol gas-phase oxidation and preparation method thereof |
| 05/21/2008 | CN101182294A Method for preparing dimethyl carbonate by biological methanol |
| 05/21/2008 | CN101181688A Catalyst for synthesizing diethyl carbonate by ethanol vapor-phase carbonyl |
| 05/21/2008 | CN100388978C Complex catalyst for synthesizing carbonate ester by using homogeneous oxidation carbonylation of alcohol (S), its preparation technology and use method |
| 05/07/2008 | CN101172950A Method for synthesizing di-tert-butyl dicarbonic acid ester |
| 05/07/2008 | CN100386304C Internal recycle reactor for synthesizing diphenyl carbonate by ester exchange method |
| 05/01/2008 | US20080103040 Catalytic Composition for the Insertion of Carbon Dioxide Into Organic Compounds |
| 04/30/2008 | CN100384809C Preparation method of aliphatic oligocarbonate diols |
| 04/24/2008 | US20080097116 ester interchange, reactive distillation, catalytic aromatization in presence of titanium tetraphenoxide to form diphenyl carbonate, can be produced continuously with a high yield |
| 04/23/2008 | CN101164696A Preparation of chitosan catalyst and method for synthesizing propenyl carbonate |
| 04/23/2008 | CN100383109C Technical method for purifying diphenyl carbonate by liquation crystalline |
| 04/09/2008 | CN101157616A Comprehensive utilization technique of energy during dimethyl carbonate production by transesterification process |
| 04/09/2008 | CN101157598A Process for improving product quality and yield of propanediol and glycol |
| 04/02/2008 | CN100378066C Manufacturing method and apparatus of 4-fluoroethylene carbonate |
| 04/01/2008 | US7351848 Reacting an alkanol, oxygen, carbon monoxide, and a catalyst of hydrochloride and copper chloride in a chemical reactor having a gas-liquid separator and a fluid passageway for removing alkyl chloroformate to prevent corrosion |
| 03/26/2008 | CN101147870A Catalyst for synthesizing diphenyl carbonate used in non-homogeneuos oxidation carbonylation and method for preparing the same |
| 03/19/2008 | CN101143803A Method for separating dimethyl carbonate and methanol azeotrope |
| 03/19/2008 | CN101143322A Catalyst used for catalytic synthesizing dimethyl carbonate directly from methanol and carbon dioxide and preparation and using method thereof |
| 03/18/2008 | US7345187 Method and apparatus for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates |
| 03/12/2008 | CN101139294A Process for the production of diaryl carbonates and treatment of alkalichloride solutions resulting therefrom |
| 03/12/2008 | CN101138731A Load type heteropoly compound catalyzer for interesterification synthesis reacting |
| 03/12/2008 | CN100374204C method for synthesis of diphenyl carbonate by ester exchange reaction |
| 03/06/2008 | DE102006041465A1 Verfahren zur Herstellung von Diarylcarbonat A process for producing a diaryl carbonate |
| 03/05/2008 | EP1894914A2 Method for manufacturing diaryl carbonate |
| 03/05/2008 | EP1149824B1 Protection of di-t-butyl dicarbonate against decomposition |
| 03/05/2008 | CN101134727A Process for synthesizing diethylene glycol dipropylene carbonate |
| 03/04/2008 | US7339070 Making a polycarbonate by melt reacting a diaryl carbonate and a bisphenol using transesterification catalysts, said diaryl carbonate is the recovered product mixture from a waste stream in a diaryl carbonate manufacturing process which was formed by reacting the waste stream with an alkanol |
| 02/28/2008 | US20080051595 Industrial Process For Separating Out By-Produced Alcohols |
| 02/21/2008 | WO2007114130A9 Mixture for carbon dioxide recovery/utilization and transportation |
| 02/20/2008 | EP1740529A4 Process for making dialkyl carbonates |
| 02/13/2008 | EP1387720B1 Reactor for gas/liquid or gas/liquid/solid reactions |
| 02/13/2008 | CN101121659A Technique for producing organic carbonic acid ester by urea alcoholysis method and fixed bed reactor |
| 02/13/2008 | CN101121147A Novel catalyzing technology for preparing dimethyl carbonate and its catalyst and preparation |
| 02/06/2008 | CN101117333A Catalytic depolymerization of polymers containing electrophilic linkages using nucleophilic reagents |
| 01/30/2008 | CN100364956C Method of distillation and ester exchange reaction for producing dimethyl carbonate and dihydroxyl alcohols |
| 01/29/2008 | US7323156 High pressure/high temperature production of colorless and fancy-colored diamonds |
| 01/23/2008 | CN100363410C Catalytic depolymerization of polymers containing electrophilic linkages using nucleophilic reagents |
| 01/09/2008 | CN101100527A Catalytic depolymerization of polymers containing electrophilic linkages using nucleophilic reagents |
| 01/09/2008 | CN101100424A Method for preparing mixed alkyl carbonate |
| 01/09/2008 | CN101099924A Method for preparing chitosan/ZSM-5 molecular compound film |
| 01/08/2008 | US7317121 Preparation of aliphatic oligocarbonate polyols |
| 01/03/2008 | WO2005040089A3 Water resistant catalyst for the production of diaryl carbonates via the direct carbonylation of phenolic compounds |
| 01/02/2008 | EP1871731A1 Efficient and selective conversion of carbon dioxide to methanol, dimethyl ether and derived products |
| 01/01/2008 | US7314947 Process for making dialkyl carbonates |
| 12/26/2007 | CN101092365A Technical method for associated producing carbonic allyl ester, methyl carbonate, and propylene glycol |
| 12/19/2007 | CN100355734C Preparation of quinoline-substituted carbonate and carbamate derivatives |
| 12/13/2007 | WO2007143319A1 Method of preparing ester-substituted diaryl carbonates |
| 12/13/2007 | WO2007140908A1 Process for preparing fluorinated molecules |
| 12/13/2007 | DE102006027089A1 Verfahren zur Herstellung von fluorierten Molekülen A process for the preparation of fluorinated molecules |
| 12/12/2007 | CN100354248C Processes for producing carbonic ester and producing polycarbonate |
| 12/05/2007 | CN101084181A Asahi chemical corp (jp) |
| 12/05/2007 | CN101084180A Process for producing aromatic carbonate |
| 12/05/2007 | CN101084179A Process for making dialkyl carbonates |
| 12/05/2007 | CN101081814A Method and apparatus for production of alkyl aryl ether and diaryl carbonate |
| 11/29/2007 | WO2007134710A1 Stabilization of dicarbonic diesters by finely divided solids |
| 11/28/2007 | CN101080380A Method for the preparation of aliphatic chloroformates |
| 11/22/2007 | DE102006023243A1 Stabilisierung von Dikohlensäurediestern durch feinteilige Feststoffe Stabilization of pyrocarbonic acid diesters by finely divided solids |
| 11/21/2007 | CN101074193A Production of diphenyl carbonate by triphosgene or solid phosgene |
| 11/14/2007 | CN101069823A Separation film for separating methanol/methyl-carbonate azotrope |
| 11/08/2007 | US20070260095 Process for the Industrial Production of Aromatic Carbonate |
| 11/08/2007 | US20070260084 Industrial Process for Production of High-Purity Diaryl Carbonate |
| 11/01/2007 | WO2007121859A1 Stabilization of dicarbonate diesters with protonic acids |
| 11/01/2007 | WO2007121857A1 Stabilization of dicarbonate diesters with phosphorus compounds |
| 11/01/2007 | US20070252106 Intermediate Product Comprised of a Mixture of Organic Carbonates and Carbamates and a Method for Its Manufacture |
| 11/01/2007 | CA2649546A1 Stabilization of diesters of dicarbonic acid with protonic acids |
| 11/01/2007 | CA2649542A1 Stabilization of diesters of dicarbonic acid |
| 10/31/2007 | EP1174406B1 Method for continously producing a dialkyl carbonate and a diol |
| 10/30/2007 | CA2341209C Process and catalyst for making dialkyl carbonates |
| 10/25/2007 | DE102006018845A1 Stabilisierung von Dikohlensäurediestern mit Protonen-Säuren Stabilization of pyrocarbonic acid diesters with proton acids |
| 10/25/2007 | DE102006018843A1 Stabilisierung von Dikohlensäurediestern Stabilization of pyrocarbonic acid diesters |
| 10/24/2007 | CN101058540A Method of preparing alkyl carbonate and cycloalkyl alcohol synchronously |
| 10/17/2007 | EP1845078A1 Process for producing large cyclic ketone and intermediate therefor |
| 10/17/2007 | CN101056843A Process for producing large cyclic ketone and intermediate therefor |