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| Number | Title | Issue Date |
| 7390427 | Hydrofluoroether as a heat-transfer fluid The present invention provides an apparatus comprising a device and a mechanism for heat transfer comprising a hydrofluoroether heat-transfer fluid wherein the heat transfer fluid is represented by the following structure: Rf—O—Rh... | 06/24/2008 |
| 7375254 | Process for recovery of 1,1,1,3,3,3-hexafluoroisopropanol from the waste stream of sevoflurane synthesis Provided is a process of obtaining 1,1,1,3,3,3-hexafluoro-2-propanol (“HFIP”) from a composition comprising an HFIP hydrolyzable precursor. The HFIP hydrolyzable precursor is a compound, other than sevoflurane itself, that has an intact 1,1,1,3,3,3-hexafluoroiso... | 05/20/2008 |
| 7361666 | Heterocyclic analgesic compounds and methods of use thereof One aspect of the present invention relates to novel heterocyclic compounds. A second aspect of the present invention relates to the use of the novel heterocyclic compounds as ligands for various cellular receptors, including opiate receptors, other G-protein-couple... | 04/22/2008 |
| 7341971 | Production of olefin polymerization catalysts The invention provides a process for producing an olefin polymerization catalyst, comprising an organometallic compound of a transition metal or of an actinide or lanthanide, in the form of solid catalyst particles, comprising forming a liquid/liquid emulsion system... | 03/11/2008 |
| 7288682 | Separation of bifunctional perfluoropolyethers (PFPEs) having -CHOH termination from their mixtures with -CHOH monofunctional PFPEs A process for separating bifunctional perfluoropolyethers (PFPEs) having two terminations —CH2OH from their mixtures with monofunctional PFPEs with one termination —CH2OH, of general formula X1—O—Rf—Y (I) | 10/30/2007 |
| 7252886 | Curable composition and process for producing cured fluorinated product To provide a curable composition which gives a cured fluorinated product excellent in transparency, light resistance (particularly against a short wavelength light having a wavelength of from 200 to 500 nm) and heat resistance, and having a controlled volume particu... | 08/07/2007 |
| 7247757 | Method of producing a fluorine-containing vinyl ether compound A method of producing a fluorine-containing vinyl ether compound, which contains the step of: fluorinating a compound of formula (I-1) or (I-2): wherein R is a straight-chain, branched-chain or cyclic alkyl group... | 07/24/2007 |
| 7230142 | Process for purifying fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether A process for purifying fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether containing at least 1,1,1,3,3,3-hexafluoroisopropyl alcohol. The purifying process comprises the treatment of causing fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether containing at least 1,... | 06/12/2007 |
| 7230143 | Chromatographic method for the analysis of both in process and finished sevoflurane A method in which organic matter found in a crude sevoflurane may be separated, identified, and quantified using a CARBOWAX™ (polyethylene glycol) capillary gas chromatographic column or an alkyl polysiloxane capillary gas chromatographic column. Also provided is ... | 06/12/2007 |
| 7230147 | Process for functionalizing a double bond The invention concerns a method for functionalizing a double bond and, more particularly, a double bond bearing a metalloid atom. Said functionalization is produced by the action of perhalogenated sulphonyl chloride on the carbon bearing sulphur in the presence of a... | 06/12/2007 |
| 7202386 | Method for the preparation of sevoflurane A method for the preparation of sevoflurane which comprises (a) providing a liquid mixture of (CF3)2CHOCH2Cl, hydrogen fluoride, and an amine and (b) reacting the mixture, to form (CF3)2CHOCH2F. ... | 04/10/2007 |
| 7193119 | Process for producing fluorinated alkyl ether To provide a process for producing a fluorinated alkyl ether, whereby a sufficient reaction rate can be attained even under mild reaction conditions, and a post-process such as distillation after the reaction can be efficiently carried out. A process for prod... | 03/20/2007 |
| 7193118 | Method for producing fluoroalkyl ether A method for producing a fluoroalkyl ether, which comprises reacting a fluoroalkyl alcohol with a fluorinated olefin in the presence of a solvent and a catalyst, wherein the fluoroalkyl alcohol and the fluorinated olefin are continuously supplied into a reactor, a r... | 03/20/2007 |
| 7153397 | Process for the purification of fluoromethyl hexafluoroisopropyl ether A process for the purification of fluoromethyl hexafluoroisopropyl ether which comprises contacting a crude composition comprising fluoromethyl hexafluoroisopropyl ether and hexafluoroisopropyl alcohol with a modifier in the presence of which the vapor pressure of t... | 12/26/2006 |
| 7141704 | Process for preparing hydrofluoroethers Process for obtaining hydrofluoroethers of formula (I): A-(Rf)n0—CF(Rf1)—O—Rh (I) wherein a mono- or bifunctional carbonyl compound of formula (IV): B—Rf—C(O)Rf1... | 11/28/2006 |
| 7132051 | Liquid-liquid extraction of polar organic substances from their aqueous solutions with fluorinated extracting liquids A liquid-liquid extraction process of ketones, alcohols, aldehydes, alkyl esters of carboxylic acids, carboxylic acids, ethers, amines and heterocyclic compounds, from their aqueous solutions, comprising the addition under stirring to said aqueous solutions of a flu... | 11/07/2006 |
| 7128133 | Hydrofluoroether as a heat-transfer fluid The present invention provides an apparatus comprising a device and a mechanism for heat transfer comprising a hydrofluoroether heat-transfer fluid wherein the heat transfer fluid is represented by the following structure: Rf—O—Rh... | 10/31/2006 |
| 7129228 | Heterocyclic analgesic compounds and methods of use thereof One aspect of the present invention relates to novel heterocyclic compounds. A second aspect of the present invention relates to the use of the novel heterocyclic compounds as ligands for various cellular receptors, including opiate receptors, other G-protein-couple... | 10/31/2006 |
| 7125834 | Functional substances derived from oligoolefins having functional groups at the ends This invention provides the following: an amphiphilic functional substance with lipophilicity, affinity for supercritical CO2, and if necessary hydrophilicity comprising an oligoolefin chain and a perfluoroalkyl group(s) at a single end thereof or at both... | 10/24/2006 |
| 7102031 | Method for producing diene compound It is an object to obtain from a mixture of a specific diene compound (1) and a compound (2) with the same molecular weight and molecular formula hard to separate by distillation, the diene compound (1) in high purity without using any special reagent or complicated... | 09/05/2006 |
| 7091374 | Fluorinated compounds Fluorinated compounds and emulsions including the compounds. The compositions are useful as oxygen carriers and surfactants. In one embodiment, the fluorinated compound is pH sensitive. In one embodiment, the fluorinated compound is a vitamin E derivative. In one em... | 08/15/2006 |
| 7060850 | Fluorous tagging and scavenging reactants and methods of synthesis and use thereof The present invention includes methods and compositions for increasing the fluorous nature of an organic compound by reacting it with at least one fluorous compound to produce a fluorous tagged organic compound. The increased fluorous nature of the fluorous tagged o... | 06/13/2006 |
| 7034190 | Process for the production of fluoromethyl hexafluoroisopropyl ether A process for the production of fluoromethylhexafluoroisopropylether which comprises contacting bis(fluoromethyl)ether with hexafluoroisopropyl alcohol in which the molar ratio of the ether to alcohol is in excess of 2:1. The reaction takes place in the presence of ... | 04/25/2006 |
| 7019178 | Process for the purification of fluoromethyl hexafluoroisopropyl ether A process for the purification of fluoromethyl hexafluoroisopropyl ether involving contacting a crude composition containing impure fluoromethyl hexafluoroisopropyl ether with an adsorbent having pores with a range of pore sizes whereby the difference between the sm... | 03/28/2006 |
| 6987204 | Process for recovery of 1,1,1,3,3,3-hexafluoroisopropanol from the waste stream of sevoflurane synthesis Provided is a process of obtaining 1,1,1,3,3,3-hexafluoro-2-propanol (“HFIP”) from a composition comprising an HFIP hydrolyzable precursor. The HFIP hydrolyzable precursor is a compound, other than sevoflurane itself, that has an intact 1,1,1,3,3,3-hexafluoroiso... | 01/17/2006 |
| 6911513 | Fluorinated diene compound and fluoropolymer, and methods for their production A novel fluoropolymer which can be an optical resin material having a low refractive index and excellent heat resistance, and a novel fluorinated diene compound having two unsaturated bonds, capable of presenting such a fluoropolymer, are presented. Further, by virt... | 06/28/2005 |
| 6849194 | Methods for preparing ethers, ether compositions, fluoroether fire extinguishing systems, mixtures and methods Highly fluorinated, saturated, and unsaturated fluoroethers are efficient, economical, non-ozone-depleting fire extinguishing agents used alone or in blends with other fire extinguishing agents in total flooding and portable systems. Methods for producing ethers, ha... | 02/01/2005 |
| 6800786 | Preparation of desflurane Provided is a method for the preparation of desflurane wherein isoflurane is reacted with 0.7-1.2 mol. % of antimony pentachloride and 1.3-2.2 molar equivalents of hydrogen fluoride. Typically, the method is conducted by addition of hydrogen fluoride to a mixture of... | 10/05/2004 |
| 6770776 | Synthesis of fluorocarbon compounds Fluorocarbon compounds are synthesized by reacting a substrate hydrocarbyl compound containing at least one sp3-hybridized halophoric carbon atom bearing at least two halogen atom substituents, at least one of which is a halogen atom having an atomic numb... | 08/03/2004 |
| 6756458 | Fluorinated compound, method for its production and polymer thereof A novel polymer useful as an optical resin material excellent in heat resistance, a novel monomer for obtaining the polymer, etc., are provided. A fluorinated diene represented by CF2═CF(CF2)nC(CF3)ROCF═CF2 ... | 06/29/2004 |
| 6677492 | Fluoroether compositions and methods for inhibiting their degradation in the presence of a Lewis acid The present invention relates to an anesthetic composition containing a fluoroether compound and a physiologically acceptable Lewis acid inhibitor. This composition exhibits improved stability and does not readily degrade in the presence of a Lewis acid.... | 01/13/2004 |
| 6670511 | Fluorine-containing diene, its production method and its polymer A fluorine-containing diene represented by the formula 1: wherein each of X and Y which are independent of each other, is an atom selected from a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom and an iodine atom, provided that X and Y are not ... | 12/30/2003 |
| 6555086 | Hydrogen fluoride recovery process Processes for separating and recovering hydrogen fluoride from a gaseous mixture of an organic compound and hydrogen fluoride are disclosed. The processes include contacting the gaseous mixture with a solution of an alkali metal fluoride in hydrogen fluor... | 04/29/2003 |
| 6509509 | Process for the preparation of perfluoropolyoxyalkylenes with hydroxyl end groups A process for preparing perfluoropolyoxyalkylenes with hydroxyl end groups having structure: T1 --CFW1 --O--Rf --CFW2 --T2 (I) wherein: T1, T2, are selected from --CH2 OH, --F,... | 01/21/2003 |
| 6469219 | Production of fluoromethyl 2,2,2-trifluoro-1-(trifluoromethyl)ethyl ether An improved process for preparing fluoromethyl 2,2,2-trifluoro-1-(trifluoromethyl)ethyl ether(sevoflurane) by reacting 1,1,1,3,3,3-hexafluoro-2-propanol with formaldahyde and hydrogen fluoride either A) under distillation conditions or B) in the presence ... | 10/22/2002 |
| 6448451 | Process for removal of dimethyl ether in the synthesis of sevoflurane The invention provides a process for purifying methyl 2,2,2-trifluoro-1-(trifluoromethyl)ethyl ether, comprising: passing a composition comprising methyl 2,2,2-trifluoro-1-(trifluoromethyl)ethyl ether and dimethyl ether through an evaporation zone; evapor... | 09/10/2002 |
| 6448452 | Fluorine-containing diene, its production method and its polymer A polymer which contains monomer units formed by polymerization of a fluorine-containing diene of formula 1: CF2.dbd.CF(CF2)n CXYOCF.dbd.CF2 Wherein X and Y are hydrogen and chlorine, hydrogen and-bromine, hydrogen a... | 09/10/2002 |
| 6444859 | Fluoroether compositions and methods for inhibiting their degradation in the presence of a Lewis acid The present invention relates to an anesthetic composition containing a fluoroether compound and a physiologically acceptable Lewis acid inhibitor. This composition exhibits improved stability and does not readily degrade in the presence of a Lewis acid.... | 09/03/2002 |
| 6365769 | Perfluoroalkyl halides and derivatives Novel mixtures of perfluoroalkyl halides and derivatives thereof are described. These mixtures contain some compounds with a straight perfluoroalkyl group and some with a branched perfluoroalkyl group. Methods of preparation and use are also described.... | 04/02/2002 |
| 6361713 | Omega-hydrofluoroalkyl ethers, precursor carboxylic acids and derivatives thereof, and their preparation and application Normally liquid, omega-hydrofluoroalkyl ether compounds (and selected mixtures thereof) have a saturated perfluoroaliphatic chain of carbon atoms interrupted by one or more ether oxygen atoms. The compounds can be prepared, e.g., by decarboxylation of the... | 03/26/2002 |
