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| Number | Title | Issue Date |
| 8138367 | Process for production of aromatic carbonate The present invention provides a process for the production of an aromatic carbonate, comprising the steps of: continuously feeding an aliphatic carbonate represented by following general formula (1) as a starting material, an aromatic monohydroxy compound represent... | 03/20/2012 |
| 8034966 | Phenoxyisobutyric acid compounds and methods for synthesis The present invention provides a process for the synthesis of substituted arylureidophenoxymethylpropionic acid and related compounds including bifunctional and tetrafunctional derivatives. The compounds are useful for inhibiting the formation of AGEs (Aminaglycatio... | 10/11/2011 |
| 7888525 | Method for preparing organic carbonates A method for preparing organic carbonates comprising subjecting an alcohol compound to oxidative carbonylation in the presence of carbon monoxide, oxygen and a liquid-phase catalytic system, to form a organic carbonates, wherein the liquid-phase catalytic system inc... | 02/15/2011 |
| 7728164 | Process for the preparation of propylene carbonate The invention relates to a process for the preparation of propylene carbonate, which process involves contacting propylene oxide with carbon dioxide at a temperature of from 150° C. to 250° C. in the presence of a recycled tetraalkylphosphonium bromide catalyst. | 06/01/2010 |
| 7598410 | Method for the production of organic carbonates The invention relates to a method for the production of monomer organic carbonates from a mixture of organic carbonates and carbamates which are obtained by reacting urea, substituted urea, a salt or ester of carbamide acid or one of the N-substituted derivatives th... | 10/06/2009 |
| 7589227 | Method for the production of organic carbonates The invention relates to a method for the production of monomer organic carbonates, wherein urea, substituted urea, a salt or an ester of carbamide acid or one of the N-substituted derivatives thereof is reacted in a first step in a polyalkylene glycol, a polyester-... | 09/15/2009 |
| 7585995 | Continuous wasteless ecologically safe technology of propylenecarbonate production in presence of phthalocyanine catalysts A continuous method of producing propylenecarbonate includes carboxylation of propylene oxide with carbon dioxide in presence of phthalocyanine catalyst on an inert carrier, using as the phthalocyanine catalyst at least one catalyst selected from the group consistin... | 09/08/2009 |
| 7446218 | Process for producing carbonic ester A method for producing a carbonic ester, comprising: (1) performing a reaction between an organometal compound mixture and carbon dioxide, the organometal compound mixture comprising a reactive organometal compound and an unregenerable unreactive compound derived fr... | 11/04/2008 |
| 7435842 | Process for producing carbonic ester A method for producing a carbonic ester, comprising (1) performing a reaction between an organometal compound having a metal-oxygen-carbon linkage and carbon dioxide to obtain a reaction mixture containing a carbonic ester formed by the reaction, (2) separating the ... | 10/14/2008 |
| 7417070 | Compounds and methods for delivery of prostacyclin analogs This invention pertains generally to prostacyclin analogs and methods for their use in promoting vasodilation, inhibiting platelet aggregation and thrombus formation, stimulating thrombolysis, inhibiting cell proliferation (including vascular remodeling), providing ... | 08/26/2008 |
| 7393961 | Polyhalogenated ethers (Per)haloethers having formula: X-(Rf)L-O—CF2CF2—O—CX1X2—CFX3X4 , (I) process for obtaining them and hypofluorites usable in the synthesis of said (per)hal... | 07/01/2008 |
| 7384978 | Compounds and methods for delivery of prostacyclin analogs This invention pertains generally to prostacyclin analogs and methods for their use in promoting vasodilation, inhibiting platelet aggregation and thrombus formation, stimulating thrombolysis, inhibiting cell proliferation (including vascular remodeling), providing ... | 06/10/2008 |
| 7368597 | Carbonylation process using metal-polydentate ligand catalysts A process for the liquid phase carbonylation of an alcohol and/or a reactive derivative thereof in the presence of hydrogen in which there is employed a catalyst comprising rhodium of iridium coordinated with a polydentate ligand. ... | 05/06/2008 |
| 7351848 | Method and apparatus for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates Unexpected corrosion of downstream sections of a dialkyl carbonate manufacturing apparatus has been traced to alkyl chloroformate impurities, which slowly decompose to yield hydrochloric acid. An improved process and apparatus for dialkyl carbonate synthesis reduce ... | 04/01/2008 |
| 7345187 | Method and apparatus for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates Unexpected corrosion of downstream sections of a dialkyl carbonate manufacturing apparatus has been traced to alkyl chloroformate impurities, which slowly decompose to yield hydrochloric acid. An improved process and apparatus for dialkyl carbonate synthesis reduce ... | 03/18/2008 |
| 7297754 | Method for the preparation of aromatic chloroformates A method for preparing an aromatic chloroformate comprising, introducing a mixture of at least one aromatic hydroxyl compound, phosgene, at least one solvent, and at least one organic base into a flow reactor to obtain a unidirectionally flowing reaction mixture. Th... | 11/20/2007 |
| 7253297 | Astaxanthin esters Astaxanthin derivatives of the general formula (I) wherein R is in each case group —NH—CH(R1)—COOR2, —OR3 or —(Y)n-Z and R1, R2, R3, Y, Z and n are significances given in detail i... | 08/07/2007 |
| 7112633 | Preparation of a compound containing cyclic and linear carbonate groups The invention relates to a process for the preparation of compound(s) comprising at least one acrylate or methacrylate group, at least one linear carbonate group and at least one 5-membered cyclic carbonate group. The process comprises (A) a selective ring-opening s... | 09/26/2006 |
| 7094917 | Processes for refining compositions containing dialkyl carbonates Processes for refining dialkyl carbonate-containing compositions are described, wherein a composition comprising a dialkyl carbonate is provided; and the composition is subjected to a rectification wherein low-boiling impurities are removed, and a rectification wher... | 08/22/2006 |
| 7078539 | Carbonate decolorization The color of organic carbonate such as ethylene carbonate or propylene carbonate is substantially improved by ultraviolet irradiation. ... | 07/18/2006 |
| 7060296 | Hydrolysable hydrogels for controlled release The present invention relates to a biodegradable hydrogel comprising bonds which are hydrolyzable under physiological conditions. More particularly, the hydrogel consists of two interpenetrating polymer networks interconnected to one another through hydrolyzable spa... | 06/13/2006 |
| 7049457 | Use of an ionic halide free copper catalyst for the production of dialkyl carbonates A non-corrosive process for the preparation of dialkyl carbonate by reacting carbon monoxide, alkanol and an oxygen-containing gas in the presence of a ionic halogen free copper catalyst. ... | 05/23/2006 |
| 7019177 | Process for preparing fluorohalogenethers A process for preparing (per)fluorohalogenethers having general formula (II): R′CF2OCFA-CA′F2 (II) wherein:— A and A′, equal to or different from each other, are H, Cl or Br bu... | 03/28/2006 |
| 7005496 | Production of trimethylene carbonate from poly (trimethylene carbonate) by wiped film reactive evaporation A method for producing trimethylene carbonate poly(trimethylene carbonate which comprises (a) introducing liquid poly(trimethylene carbonate) and an optional catalyst into a wiped film evaporator reactor under a vacuum about 15 kPa or less, said reactor having walls... | 02/28/2006 |
| 7005495 | Polycarbonate diol having high proportion of primary terminal OH Disclosed is a polycarbonate diol having diol monomer units and carbonate monomer units, wherein the amount of at least one diol monomer unit selected from the group consisting of a 1,5-pentanediol unit and a 1,6-hexanediol unit is from 50 to 100% by mole, based on ... | 02/28/2006 |
| 6998420 | Oxazolidinone compounds Methods of synthesizing pharmacologically useful oxazolidinones are disclosed, and, in particular, a method of manufacturing a 5-(tert-butylcarbamoyl)-aminomethyl-oxazolidinone by condensing a carbamate with a tert-butylcarbamoyl protected derivative of glycidylamin... | 02/14/2006 |
| 6989459 | In situ process for preparing quaternary ammonium bicarbonates and quaternary ammonium carbonates Applicant has discovered an in situ method of preparing quaternary ammonium methocarbonate salts and quaternary ammonium alkylcarbonate salts in high yield from tertiary amines, methanol, and at least one of a cyclic carbonate, an aliphatic polyester (such as a poly... | 01/24/2006 |
| 6977309 | Compounds having a secondary or tertiary hydroxy of halide group separated from a primary carbamate group by three or more carbon atoms and a method of making the same Provided is a compound having one or more structures of the formula: wherein X is a primary carbamate group, Y is a hydroxy or halide group, n is an integer of 2 or more, n′ is an integer of 1 or more, and R0 | 12/20/2005 |
| 6946055 | Method for recovering an organic solvent from a waste stream containing supercritical CO2 An organic solvent is separated from a waste stream containing supercritical CO2, an organic solvent and etchant contaminants. The process includes separating the supercritical CO2 by subjecting the waste stream to elevated temperature and/or r... | 09/20/2005 |
| 6924379 | Process for preparation of cyclic carbonate A catalytic system comprising of Zinc-substituted polyoxometalate, Na12[WZn3(H2O)2(ZnW9O34)2].48H2O and a Lewis base has been discovered to be efficient for chemical fixation of ... | 08/02/2005 |
| 6881856 | Thermoplastic polyurethane A thermoplastic polyurethane useful for elastomers, elastic fibers and artificial leathers contains a polyaddition product of a diisocyanate and a chain extender with a liquid polyethercarbonate diol which is a reaction product of a carbonate compound with a polyeth... | 04/19/2005 |
| 6846888 | Stabilized organic peroxydicarbonate compositions Thermally stabilized initiator compositions comprising: (a) at least one dialkyl peroxydicarbonate, and (b) a stabilizing effective amount of a compound of Structure I: | 01/25/2005 |
| 6844287 | Supported catalysts for the fixation of carbon dioxide into aliphatic polycarbonates and a process for preparing the same The present invention provides a process for preparing supported zinc dicarboxylate catalysts with high activity for the copolymerization of carbon dioxide and epoxides by supporting zinc dicarboxylate on silica support. The zinc dicarboxylate may be synthesized fro... | 01/18/2005 |
| 6797837 | Process for the preparation of stabilized polycarbonate A process for preparing an emulsion is disclosed. The process entails mixing an aqueous mineral acid that contains phosphorous in an organic solvent, the mixing being continuous and with the degree of intensity sufficient to form a homogeneous emulsion. The emulsion... | 09/28/2004 |
| 6740768 | Method for producing symmetrical and asymmetrical carbonates Process for the preparation of symmetrical and asymmetrical carbonates of the general formula I by reaction of alcohols of the general formula II and alkyl or aryl halides of the general formula III, R—... | 05/25/2004 |
| 6699998 | Non-aqueous electrolyte and lithium secondary battery using the same A non-aqueous electrolyte comprising a non-aqueous solvent and a lithium salt dissolved therein, and a cyclic carbonate, linear carbonate, and vinylene carbonate having a chlorine content of 100 ppm or less, and a lithium secondary battery using the same.... | 03/02/2004 |
| 6667340 | Inhibitors of phosphatidyl myo-inositol cycle The present invention relates to the preparation and biological activity of 3-deoxy-Dmyo-inositol ether lipid analogs as inhibitors of phosphatidylinositol-3-kinase signaling and cancer cell growth. The compounds of the present invention are useful as ant... | 12/23/2003 |
| 6580001 | Method of making trimethylene carbonate A method of synthesizing trimethylene carbonate, which includes the steps of reacting 1,3-propanediol and phosgene in vapor form, providing a combination of temperature and pressure at which trimethylene carbonate is in its vapor phase, providing a reside... | 06/17/2003 |
| 6576783 | Oligonucleotide protecting groups Methods of preparing bis-protected guanidino groups of formula (IX) ##STR1## comprising the steps of reacting a compound of formula (VIII) ##STR2## with an amine, wherein R' is a thiopseudourea protecting group. Guanidino (IX) may then be used to add a gu... | 06/10/2003 |
| 6531623 | Continuous process for producing carbonic acid diaryl ester A two stage interfacial polycondensation process for the production of carbonic acid diaryl ester is disclosed. The invention concerns an improvement to the process that entails forming in a first stage a reaction mixture that contains an inert solvent, a... | 03/11/2003 |
