| Patents for C07C 68 - Preparation of esters of carbonic or haloformic acids (3,588) |
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| 03/18/2004 | US20040054214 Reacting alkylene oxide, carbon dioxide and alcohol using carbonation catalyst |
| 03/17/2004 | EP1140779B1 Method for producing diaryl carbonates |
| 03/17/2004 | EP1027926B1 Process for the preparation of aromatic carbonates |
| 03/17/2004 | CN1142133C Catalyst for synthesizing carbonic allyl ester |
| 03/11/2004 | US20040049070 Process for preparing peroxides using mixed anhydrides |
| 03/10/2004 | CN1481347A Method of depolymerizing aromatic polycarbonate |
| 03/03/2004 | EP1394145A1 Process for the production of aliphatic fluoroformates |
| 03/03/2004 | EP1165483B1 Method for the production of carbonyl fluoride |
| 03/03/2004 | CN1140494C Method of preparation of diaryl carbonate |
| 03/02/2004 | US6700009 Method and catalyst system for producing aromatic carbonates |
| 03/02/2004 | US6700008 Method and catalyst composition for producing aromatic carbonates |
| 02/26/2004 | WO2004016577A1 Process for producing aromatic carbonate |
| 02/25/2004 | CN1478066A Method and catalyst systemfor producing aromatic carbonates |
| 02/24/2004 | US6696590 Reacting alcohol with phosgene, diphosgene and/or triphosgene under pressure to form chloroformate |
| 02/24/2004 | CA2309796C Carbonate derivatives of retinol, process for their preparation and uses |
| 02/19/2004 | WO2004014840A1 Process for producing carbonic ester |
| 02/18/2004 | CN1138754C Process for continuous production of aryl carbonates |
| 02/18/2004 | CN1138751C Process for purification of carbonic acid diaryl ester |
| 02/18/2004 | CN1138750C Process for preparing poly-carbonate ester |
| 02/18/2004 | CN1138736C Method of preparing glycol and carbonate simultaneously |
| 02/17/2004 | US6692714 Placing a colored type ii natural diamond in a pressure-transmitting medium; consolidating pressure-transmitting medium into a pill; exposing pill to elevated pressure and temperature to change color of diamond |
| 02/11/2004 | EP1387720A1 Reactor for gas/liquid or gas/liquid/solid reactions |
| 02/10/2004 | CA2078963C Procedure for the production of alkyl carbonates |
| 02/04/2004 | EP1212286B1 Catalyst composition and method for producing diaryl carbonates |
| 02/04/2004 | EP1194395B1 Catalyst composition and method for producing diaryl carbonates using nitrile as promoter |
| 02/04/2004 | CN1473143A Oxidative carbonylation of hydroxyaromatic compounds |
| 02/04/2004 | CN1136966C Catalyst for synthesizing dimethyl carbonate and its preparation method |
| 01/28/2004 | CN1136044C Catalyst for synthesis of aromatic phenyl car bonate and its preparing method |
| 01/27/2004 | US6683015 Method for reactivating a catalyst composition |
| 01/27/2004 | CA2098147C Catalytic procedure for the preparation of organic carbonates |
| 01/21/2004 | CN1135219C Improved method for producing mixed high purity (methyl) acrylic anhydrides |
| 01/20/2004 | US6680400 Reacting phosgene and phenol in the presece of an inert solvent, an alkline solution and nitrogen base catalyst, ph and temperature are maintained at 11-12 and 7.5-10.5 and < 40 degrees c. and < 50 degrees c. in first and second stages |
| 01/07/2004 | CN1133616C Carried catalyst synthesizing diphenyl carbonate and its preparing method |
| 01/07/2004 | CN1133615C Double component carried catalyst for synthesizing diphenyl carbonate and its preparing method |
| 12/31/2003 | WO2004000780A1 Method and apparatus for preparing a dialkyl carbonate |
| 12/31/2003 | CN1132809C Process for preparing diethyl carbonate |
| 12/25/2003 | US20030236428 Method and apparatus for preparing a dialkyl carbonate |
| 12/18/2003 | US20030232940 For producing polymer having transparency and low refractive index in a wide wavelength region from vacuum ultraviolet region to optical communication wavelength region, adhesion to the substrate, film forming property, etching resistance |
| 12/10/2003 | EP1368310A2 Improved methods of ortho alkylation |
| 12/10/2003 | CN1130335C Process for producing diaryl carbonate |
| 12/10/2003 | CN1130334C Process for preparing diaryl carbonate |
| 12/03/2003 | EP1366014A1 Method and catalyst system for producing aromatic carbonates |
| 11/26/2003 | EP1363871A1 Process for co-production of dialkyl carbonate and alkanediol |
| 11/26/2003 | EP1012132B1 Phosgenation under pressure of alcohol's for producing chloroformates |
| 11/26/2003 | CN1128782C Catalyst for decarbonylation reaction |
| 11/26/2003 | CN1128664C Composite metal oxide catalyst for synthesizing diphenyl ester carbonate by ester exchange process and tis preparing method |
| 11/19/2003 | CN1128131C Process for directly synthesizing dimethyl carbonate from Co2 and methanol |
| 10/30/2003 | WO2003089401A1 3-substituted oxyglutaric diester compound, optically active 3-substituted oxyglutaric monoester compound, and processes for producing these |
| 10/30/2003 | WO2003089400A1 Process for the production of unsymmetric and/or symmetric dialkyl carbonates and diols |
| 10/30/2003 | CA2484530A1 3-substituted oxyglutaric diester compound, optically active 3-substituted oxyglutaric monoester compound, and processes for producing these |
| 10/29/2003 | CN1452608A Method and catalyst system for producing aromatic carbonates |
| 10/23/2003 | WO2003087030A1 Processes for producing carbonic ester and producing polycarbonate |
| 10/23/2003 | WO2003002237A3 Use of membranes to separate organic liquids having different polarities |
| 10/23/2003 | WO2002098838A3 Method for reducing aromatic carbonate decomposition in reaction mixtures |
| 10/23/2003 | US20030199696 Heterocyclic imines such as 3-(3-quinolyl)-2-propyn-1-ol morpholine carbamate, used as chemical intermediates for antibiotics such as clarithromycin |
| 10/22/2003 | EP1140745B1 Colchinol derivatives as vascular damaging agents |
| 10/22/2003 | CN1450048A Technological method for one-stage oxidizing oxonation synthesizing methyl ethyl carbonate |
| 10/22/2003 | CN1125031C Triphosgene preparing process |
| 10/22/2003 | CN1125027C Process for producing di-tert-butyl dicarbonate |
| 10/09/2003 | WO2003082801A1 Synthesis of dialkyl carbonates |
| 10/09/2003 | WO2003082797A1 A low corrosive integrated process for preparing dialkyl carbonates |
| 10/08/2003 | EP1124787B1 Liquid composition polymerizable into organic glasses having good optical and physico-mechanical properties |
| 10/08/2003 | CN1446632A Preparation of organic/inorganic nano media pores hybridization catalyst utilized for synthesizing methyl carbonate as well as its application |
| 10/07/2003 | CA2073830C Continuous process for preparing dimethyl carbonate |
| 10/01/2003 | EP1140781B1 Method for reprocessing reaction mixtures containing diaryl carbonate |
| 09/24/2003 | CN1444618A Method for producing aliphatic oligocarbonate diols |
| 09/16/2003 | US6620959 Ester interchange between ethylene carbonate, 2-hydroxyl ethyl methyl carbonate and methanol to form dimethyl carbonate and ethylene glycol, in the presence of catalysts |
| 09/16/2003 | US6620958 Via reacting ethylene carbonate and methanol to form dimethylcarbonate to change permeability |
| 09/09/2003 | US6617279 Catalyst composition and method for producing diaryl carbonates, using bisphosphines |
| 09/04/2003 | US20030166959 Process for the separation of reaction mixtures and the recirculation of quaternary salts |
| 09/03/2003 | EP1339493A1 Method for recycle of bromide-containing catalyst constituents |
| 09/03/2003 | EP1140782B1 Method for reprocessing reaction mixtures containing diaryl carbonate |
| 09/03/2003 | EP1140773B1 Recovery of hydroxyaromatic compound from aqueous extract solutions |
| 09/02/2003 | US6613929 Reacting a corresponding chloroformate of with an alkali metal fluoride in ethylene carbonate at a temperature wherein the ethylene carbonate is liquid; much shorter reaction times |
| 08/28/2003 | US20030162989 Adding a solvent to a solution containing aromatic carbonate and aromatic hydroxy compound to selectively precipitate aromatic carbonate in solution, and then recovering the aromatic carbonate |
| 08/28/2003 | US20030162652 First and second activating solvents which catalyzes production of diaryl carbonates from aromatic hydroxy compounds, carbon monoxide and oxygen |
| 08/27/2003 | EP1337503A2 Method for the continuous production of aromatic carbonates |
| 08/27/2003 | EP1337502A1 Oxidative carbonylation of hydroxyaromatic compounds |
| 08/27/2003 | CN1119315C Method for preparing diaryl ester carbonate |
| 08/26/2003 | US6610880 Reacting with an organohydroperoxide under basic conditions to form peracids, peresters, diacylperoxides or their hydroxy derivatives; low cost; odorless; high yield |
| 08/20/2003 | CN1118325C Catalyst for synthesizing dimethyl carbonate and its application |
| 08/14/2003 | WO2003066569A1 Continuous method for preparing aromatic carbonate using a heterogeneous catalyst and a reaction apparatus for the same |
| 08/14/2003 | US20030153782 Method and apparatus for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates |
| 08/14/2003 | US20030153779 Acidification of a mixture resulting from oxidative direct carbonylation that contains, e.g., a quaternary ammonium salt, a phenolated, phenol and diphenylcarbonate, followed by reactive extraction; circulation; reuse |
| 08/14/2003 | US20030151019 Process for the preparation of organic solutions |
| 08/12/2003 | US6605191 Carbonylation of carbocyclic phenolic alcohols using carbon monoxide and oxygen gases, then separating into liquid and vapor phases in stills and reusing the liquid phase; efficiency |
| 08/06/2003 | EP1107939B1 Phosphine ligand promoted synthesis of tetraaryloxyalkane and diarylcarbonates |
| 08/06/2003 | CN1116930C Catalyst and process for preparation of aromatic carbonates |
| 07/31/2003 | US20030143150 High pressure/high temperature production of colorless and fancy-colored diamonds |
| 07/30/2003 | CN1432557A Prepn process of vinyl carbonate |
| 07/29/2003 | US6600061 Method for making aromatic carbonates. In this method, an aryl alcohol is reacted with a dialkyl carbonate in a reactor (e.g., a distillation column) to produce an arylalkyl carbonate and diaryl carbonate. The total yield is 40% |
| 07/23/2003 | EP1328501A1 Method and catalyst system for producing aromatic carbonates |
| 07/23/2003 | CN1431190A Method for synthesizing methyl carbonate by using urea and carbinol |
| 07/23/2003 | CN1431054A Catatyst of synthetical methyl carbonate, its preparing method and application |
| 07/23/2003 | CN1431053A Catalyst of synthetical methyl carbonate, its preparing method and usage |
| 07/22/2003 | US6596896 Process for producing aromatic carbonate |
| 07/22/2003 | US6596895 Diphenyl carbonate is made by reacting an aryl alcohol with a dialkyl carbonate to produce aryl alkylcarbonate and diaryl carbonate and reacting the diphenyl carbonate with a dihydric phenol to produce an aromatic polycarbonate |
| 07/22/2003 | US6596894 Method for the continuous production of aromatic carbonates |
| 07/16/2003 | CN1114496C Catalyst for synthesizing methyl carbonate by meth and liquid phase oxidation oxonation |
| 07/10/2003 | WO2003055849A1 Method for producing quaternary salt phenolate solutions and for regenerating and recycling quaternary salt phenolate solutions from reaction mixtures |