| Patents for C07C 68 - Preparation of esters of carbonic or haloformic acids (3,588) |
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| 04/20/2005 | CN1608045A Process for producing carbonic ester |
| 04/20/2005 | CN1608044A Method for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates |
| 04/14/2005 | US20050080287 Process for the production of unsymmetric and/or symmetric dialkyl carbonates and diols |
| 04/14/2005 | US20050080274 Process for producing carbonic ester |
| 04/14/2005 | DE10343472A1 Verfahren zur Herstellung von aliphatischen Oligocarbonatpolyolen A process for the preparation of aliphatic oligocarbonate polyols |
| 04/06/2005 | EP1520869A1 Process for the preparation of aliphatic oligocarbonate polyols |
| 04/06/2005 | CN1604891A Improved methods of ortho alkylation |
| 04/05/2005 | CA2150868C Method for removing the acidic impurities contained in a vapourized stream composed by organic vapours and water |
| 03/31/2005 | WO2005028415A1 Method for the production of organic carbonates |
| 03/31/2005 | WO2005028414A1 Method for the production of organic carbonates |
| 03/31/2005 | WO2005028413A1 Process for producing optically active cyclopropane compound and asymmetric copper complex for use in the same |
| 03/31/2005 | WO2004113264A3 Method and apparatus for waste stream recovery |
| 03/31/2005 | US20050070715 Methods for synthesis of acyloxyalkyl compounds |
| 03/30/2005 | EP1518879A2 Process for the preparation of alphatic olgocarbonatediols |
| 03/24/2005 | WO2005026097A1 Use of a ionic halide free copper catalyst for the production of dialkyl carbonates |
| 03/24/2005 | WO2005000776A3 Method and apparatus for production of alkyl aryl ether and diaryl carbonate |
| 03/24/2005 | US20050065361 Process for preparing alkyl/aryl chloroformates |
| 03/24/2005 | US20050065360 Preparation of aliphatic oligocarbonate diols |
| 03/24/2005 | US20050065359 Preparation of aliphatic oligocarbonate polyols |
| 03/24/2005 | US20050065313 Method of preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates |
| 03/23/2005 | CN1597113A Preparing methyl ethyl carbonate catalyst by ester exchange |
| 03/23/2005 | CN1597103A Catalyst for synthesizing cyclohexyl amino methyl formate |
| 03/23/2005 | CN1597096A Catalyst used for synthesizing dimethyl carbonate from ured and methanol and its preparation method and application |
| 03/22/2005 | CA2319673C Improved method for making mixed high purity (meth)acrylic anhydrides |
| 03/19/2005 | CA2481997A1 Preparation of aliphatic oligocarbonate polyols |
| 03/19/2005 | CA2481978A1 Preparation of aliphatic oligocarbonate diols |
| 03/17/2005 | WO2005023749A2 Method for producing asymmetric carbonic esters |
| 03/16/2005 | CN2685336Y Special internal circulating reactor for combining liquid phase carbo oxide into dimethylester carbonate |
| 03/10/2005 | US20050054868 Use of a ionic halide free copper catalyst for the production of dialkyl carbonates |
| 03/09/2005 | CN1590362A Method of separating metallic catalyst constituents from reaction mixtures |
| 03/03/2005 | US20050049418 such as 3-benzyl-1-methoxy-4,5-dimethylimidazolium iodide; by-product inhibition; for recycling polyesters and polyamides |
| 02/23/2005 | CN1585739A Method for the catalytic conversion of organic carbonate using a lanthanum catalyst |
| 02/23/2005 | CN1585733A Method for the catalytic conversion of alkylene carbonate with a mg, al mixed (hydr) oxide catalyst |
| 02/22/2005 | US6858751 Reacting carbonyl fluoride with an aliphatic alcohol, in the presence of sodium fluoride, in a solvent chosen from ethers, at a specified temperature range; tert-butyl fluoroformate in excellent yield, for example |
| 02/10/2005 | US20050033080 Method for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates |
| 02/10/2005 | US20050033079 Reacting alcohol with carbon monoxide in presence of catalyst of hydrogen chloride and a metal; gas, liquid separation; removal of by-products |
| 02/10/2005 | US20050033078 Method and apparatus for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates |
| 02/09/2005 | CN1188386C Method for reprocessing reaction mixtures contg. diaryl carbonate |
| 02/09/2005 | CN1188213C Metal oxide catalyst for synthesizing method carbonate by urea process and its prepn |
| 02/08/2005 | US6852872 Process for producing diaryl carbonates |
| 02/03/2005 | WO2005010011A2 Methods of synthesis of acyloxyalkyl compounds |
| 02/03/2005 | DE10332697A1 Methode zur Abtrennung von metallischen Katalysatorbestandteilen aus Reaktionsmischungen der Herstellung aromatischer Carbonate Method for separating metallic catalyst constituents from reaction mixtures of the production of aromatic carbonates |
| 02/02/2005 | CN1187310C Catalyst composition and method for producing diaryl carbonates using nitrile as promoter |
| 01/27/2005 | US20050019226 Apparatus for preparing a dialkyl carbonate |
| 01/26/2005 | EP1500642A1 3-substituted oxyglutaric diester compound, optically active 3-substituted oxyglutaric monoester compound, and processes for producing these |
| 01/26/2005 | CN1569811A Process for synthesizing dibutyl carbonate |
| 01/26/2005 | CN1569810A Process for synthesizing methyl carbonate by alcoholysis of urea with aliphatic diol as cyclic agent |
| 01/26/2005 | CN1569809A Process for synthesizing methyl carbonate by alcoholysis of methanol and urea |
| 01/26/2005 | CN1569808A Process for catalytic synthesis of methyl carbonate |
| 01/26/2005 | CN1569807A Process for combined production of methyl carbonate and propylene glycol |
| 01/26/2005 | CN1569806A Process for synthesizing carbonic ethenyl (allyl) ester from carbon dioxide and epoxy ethane (propane) |
| 01/26/2005 | CN1569805A Process for synthesizing carbonic ethenyl (allyl) ester from carbon dioxide and epoxy ethane (propane) |
| 01/20/2005 | US20050014965 Method of separating metallic catalyst constituents from reaction mixtures |
| 01/19/2005 | EP1497253A1 Process for the production of unsymmetric and/or symmetric dialkyl carbonates and diols |
| 01/19/2005 | CN1568301A Method for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates |
| 01/19/2005 | CN1568300A Method for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates |
| 01/13/2005 | US20050010063 Method and apparatus for waste stream recovery |
| 01/12/2005 | CN1562957A Method for synthesizing methyl propyl carbonate and dipropyl carbonate through catalysis in gas phase and solid phase |
| 01/12/2005 | CN1562956A Method of clean continuous exchange reaction of ester under supercritical condition |
| 01/12/2005 | CN1562955A Technique and equipment for synthesizing diaryl carbonate through catalyzing rectification |
| 01/12/2005 | CN1562954A Method for synthesizing methyl-propyl carbonate and dipropyl carbonate |
| 01/06/2005 | WO2005000783A1 Method for producing aromatic carbonate |
| 01/06/2005 | WO2005000776A2 Method and apparatus for production of alkyl aryl ether and diaryl carbonate |
| 01/05/2005 | EP1328501B1 Method and catalyst system for producing aromatic carbonates |
| 12/30/2004 | US20040266974 Method and apparatus for production of alkyl aryl ether and diaryl carbonate |
| 12/29/2004 | WO2004113264A2 Method and apparatus for waste stream recovery |
| 12/29/2004 | EP1490323A1 A low corrosive integrated process for preparing dialkyl carbonates |
| 12/29/2004 | CN1558892A Solventless preparation of ester-substituted diaryl carbonates |
| 12/29/2004 | CN1182100C Method for preparing diglycol double carbonyl diallyl ester |
| 12/23/2004 | US20040260114 Reacting with a carbonyl halide, an anhydride, a carbamoyl halide, or a chloroformate without any organic or inorganic bases; monoacetyl resorcinol from acetic anhydride and resorcinol for example |
| 12/22/2004 | CN1556785A Interfacial method of preparing ester-substituted diaryl carbonates |
| 12/21/2004 | US6833433 Method for producing aliphatic oligocarbonate diols |
| 12/15/2004 | CN1554639A Process for synthesizing dialkyl ester carbonate by urea alcoholysis |
| 12/08/2004 | CN1552691A Method for preparing methyl-carbonate |
| 12/02/2004 | US20040242915 Aluminum catalyst impregnated with metal hydroxide; used for forming blocking agents for amines, alcohols, mercaptans |
| 12/02/2004 | US20040242914 Method for the production of dialkyl carbonates |
| 12/01/2004 | EP1480939A1 Continuous method for preparing aromatic carbonate using a heterogeneous catalyst and a reaction apparatus for the same |
| 12/01/2004 | EP1404740B1 Method for the production of aliphatic oligocarbonate diols |
| 12/01/2004 | CN1551800A Isolation of trifluoroethanol |
| 12/01/2004 | CN1551791A Method for removing acid |
| 12/01/2004 | CN1177798C Process for preparing alkoxylated dialkyl carbonate compounds |
| 11/25/2004 | US20040236136 Low corrosive integrated process for preparing dialkyl carbonates |
| 11/25/2004 | US20040232082 Method for removing trifluoroethanol from liquids |
| 11/25/2004 | US20040232081 contacting liquids, in particular esters of carbonic and carboxylic acids, phosphoric acid, phosphonic acid or phosphinic acid contaminated, for example, with the corresponding free acid, with an acid collector comprising a polyalklyeneimine applied on a support |
| 11/24/2004 | CN1549807A Separation of impurities and/or valuable products from solutions containing diarylcarbonate, by means of solution crystallisation |
| 11/24/2004 | CN1176751C Catalyst of synthetical methyl carbonate, its preparing method and uses |
| 11/17/2004 | CN1546234A Solid base catalyst for synthesizing dimethyl carbonate, its preparing process and use thereof |
| 11/17/2004 | CN1546233A Solid base catalyst for synthesizing dimethyl carbonate, its preparing process and use thereof |
| 11/16/2004 | US6818784 Process for producing aliphatic oligocarbonate diols |
| 11/10/2004 | CN1544148A Catalyst, preparation method thereof and method for synthesizing methyl carbonate |
| 11/04/2004 | US20040220433 Process for the preparation of propylene glycol |
| 11/03/2004 | EP1007203B1 Method for producing diarylcarbonates using catalysts containing a platinum group metal produced in a sol-gel method |
| 11/02/2004 | US6812265 Transesterification of a diallylcarbonate with diols with a polyol; low shrinkage; ophthalmic lenses, solar filters, windows, solar and photovoltaic collectors and panels, optical disks, displays, video terminals |
| 10/28/2004 | WO2004092109A1 Method and device for manufacturing dimethyl carbonate |
| 10/28/2004 | WO2004091778A1 Catalyst for dimethyl carbonate synthesis |
| 10/27/2004 | CN1539812A Method for synthesizing methyl carbonate under supercritical condition |
| 10/27/2004 | CN1172889C Process for continuously producing dialkyl carbonate and diol |
| 10/20/2004 | EP1112120B1 Process and catalyst for making dialkyl carbonates |
| 10/20/2004 | CN1538870A Use of membranes to separate organic liquids having different polarities |
| 10/13/2004 | EP1242347B1 Method for producing phosphonium phenolates |