Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 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 |
| 7319173 | Process for preparing fluorohalogenethers A process for preparing (per)fluorohalogenethers having general formula: wherein: A and A′, equal to our different from each other, are selected among Cl, Br, H; m=1, 2; n=0, 1; R1 is a flu... | 01/15/2008 |
| 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 |
| 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 |
| 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 |
| 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 |
| 7109383 | Fluorine-containing allyl ether compounds, their copolymers, and resist compositions and anti-reflection film materials using such copolymers The invention relates to a fluorine-containing allyl ether compound represented by the formula 1, wherein R represents an organic group containing at least one fluorine atom and an alicyclic structure. The invent... | 09/19/2006 |
| 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 |
| 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 |
| 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 |
| 6936722 | 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)h... | 08/30/2005 |
| 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 |
| 6835856 | Process for preparing fluorohalogenethers A process for preparing (per)fluorohalogenethers having general formula (I): (R)nC(F)mOCAF—CA′F2 (I) wherein: A and A′, equal to or different the one from the other, a... | 12/28/2004 |
| 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 |
| 6653512 | Perfluoroalkyl haloalkyl ethers and compositions and applications thereof Described are compositions comprising perfluoroalkyl haloalkyl ethers and, optionally, surfactant; uses for perfluoroalkyl haloalkyl ether compounds and compositions thereof, optionally comprising surfactant; and perfluoroalkyl haloalkyl ethers.... | 11/25/2003 |
| 6316636 | 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... | 11/13/2001 |
| 6300526 | Hydro-fluoroalkylvinylethers and process for obtaining them Hydro-2,2-difluoroalkylvinylethers having the formula CF2.dbd.CH--O--R.sub.A (I) wherein RA is a radical containing fluorine, optionally containing halogens such as Cl, Br, I, hydrogen, functional groups CM, COOR', CON(R')2, S... | 10/09/2001 |
| 6300532 | Process for addition of haloalkanes to alkenes catalyzed by an organophosphite compound A process for catalytic addition of haloalkanes to alkenes involving the step of reacting the haloalkane with the alkene in the presence of a catalyst. The catalyst is an organophosphite compound represented by the following formula: P(ORa)(OR | 10/09/2001 |
| 6288127 | 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.... | 09/11/2001 |
| 6271422 | Method for fluoromethylation of alcohols via halogenative decarboxylation A method for fluoromethylation of an alcohol via halogenative decarboxylation. The method includes the step of reacting an alcohol of the formula R1 C(CX3)2 OH with an alpha-haloester of the formula X2 CH2 | 08/07/2001 |
| 6245949 | Synthetic method for the fluoromethylation of alcohols A method for fluoromethylating halogenated alcohols. The method includes the step of providing an alpha-halogenated alcohol of the formula R1 C(CX3)2 OH, wherein R1 is selected from the group consisting of hydro... | 06/12/2001 |
| 6100434 | Method for synthesizing sevoflurane and an intermediate thereof A method for synthesizing fluoromethyl-1,1,1,3,3,3-hexafluoroisopropyl ether. The method includes the step of combining in the presence of aluminum trichloride a quantity of hexafluoroisopropanol and a quantity of either 1,3,5-trioxane or paraformaldehyde... | 08/08/2000 |
| 6072088 | Chemical compounds having two trifluoromethyl groups A compound having the formula: CF3 CH2-w (H1-x CH2-y Rm R'n CH1-z)p H2-q CF3 wherein w=0, 1 or 2; x=0 or 1; y=0, 1 or 2; m=0, 1 or 2; n=0 or 1; z=0 or ... | 06/06/2000 |
| 5990176 | 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.... | 11/23/1999 |
| 5886239 | Method of preparing monofluoromethyl ethers A method of preparing fluoromethyl 2,2,2-trifluoro-1-(trifluoromethyl)ethyl ether (sevoflurane) and structurally related monofluoromethyl ethers in which the monochloromethyl ether precursor thereof is reacted with a sterically hindered tertiary amine hyd... | 03/23/1999 |
| 5877357 | Process for preparing perhaloethers from perhaloolefins and new perhaloethers thereby obtained The invention relates to a process for preparing perhaloethers from perhaloolefins and to a few "per se" new classes of perhaloethers thereby obtained. The process consists in reacting a perhalomonoolefin with a fluoroxy compound Rx --OF (where... | 03/02/1999 |
| 5753776 | Liquid-phase fluorination This invention pertains to a method for liquid phase fluorination for perfluorination of a wide variety of hydrogen-containing compounds.... | 05/19/1998 |
| 5693747 | Perfluoroalkyl sulfide sulfone polysulfone and polysulfide diols Bisperfluoroalkyl-substituted diols containing sulfide, sulfone or polysulfide linkages and a method for making them are described. These diols can react with isocyanates to form urethanes; diisocyanates to form polyurethanes; chloroformates to form carbo... | 12/02/1997 |
| 5674949 | Liquid-phase fluorination This invention pertains to a method for liquid-phase fluorination for perfluorination of a wide variety of hydrogen-containing compounds.... | 10/07/1997 |
| 5639921 | Method of producing difluoromethyl ethers and esters and ethers and esters produced thereby A process for producing difluoromethyl ethers and esters by reacting an ether or an acid with a cadmium, zinc or bismuth compound containing the CF3 group and selected from the group consisting of Cd(CF3)2, Zn(CF3 | 06/17/1997 |
| 5621144 | Fluorinated compounds as oxygen transport agents New compounds are described typically having the formula CH3 C(CH2 R)3 or ZCH2 C(CH2 R)3 where R is a fluorohydrocarbon or perfluorocarbon group, preferably containing 4-16 carbon atoms and... | 04/15/1997 |
| 5536885 | Production of perfluoro(alkyl vinyl ethers) Disclosed herein is a process for making perfluoro(alkyl vinyl ethers) by fluorination with elemental fluorine of selected novel partially fluorinated (di) chloroethyl ethers, followed by dehalogenation to the corresponding perfluoro(alkyl vinyl ether). T... | 07/16/1996 |
| 5523496 | Fluorination of acetals, ketals and orthoesters Perfluoropolyethers and perhalogenated chlorofluoroether polymers are disclosed that can be prepared by fluorinating polymers made by the polymerization of acetals, ketals, polyacetals, polyketals and orthoesters with elemental fluorine.... | 06/04/1996 |
| 5481028 | Lewis acid catalyzed conjugated iodofluorination of fluoroolefins A process for the preparation of perfluoroalkyl iodides, especially perfluoroethyl iodide, by reaction of perfluorinated compounds which contain a carbon carbon double bond with ICl in HF solvent in the presence of Lewis acid catalysts. The compounds are ... | 01/02/1996 |
| 5481046 | Telechelic telomers of chlorotrifluoroethylene Iodine terminated liquid telechelic telomers of chlorotrifluoroethylene (CTFE) containing an average of more than 1 CTFE unit per molecule are novel compounds. The telomers can be prepared by a photochemically initiated reaction between liquified CTFE and... | 01/02/1996 |
| 5461117 | Liquid phase fluorination This invention pertains to a method for liquid phase fluorination for perfluorination of a wide variety of hydrogen-containing compounds.... | 10/24/1995 |
| 5457242 | 2-bromo,1',2'-dichloroperfluoro diethyl ether and process for preparing same A process for preparing the novel compound 2-bromo, 1', 2'-dichloroperfluoro diethyl ether of formula: BrCFhd 2--CF2 --O--CFCl--CF2 Cl where BrCF2 --CF2 OF is reacted with the olefin CFCl.dbd.CFCl, with bromohypofluo... | 10/10/1995 |
| 5455371 | Method of producing difluoromethyl ethers and esters and ethers and esters produced thereby A process for producing difluoromethyl ethers and esters by reacting an ether or an acid with a cadmium, zinc or bismuth compound containing the CF3 group and selected from the group consisting of Cd(CF3)2, Zn(CF3 | 10/03/1995 |
| 5446211 | Chlorination of difluoromethyl methyl ether The synthesis of fluorinated dimethyl ethers of the formula CF2 HOCClx Fy H3-(x+y) wherein x is 0, 1 or 2; y is 1, 2 or 3; and wherein (x+y) is 1, 2 or 3. The process involves chlorination of methyl difluorometh... | 08/29/1995 |
| 5420359 | Chlorofluoroether compositions and preparation thereof Normally liquid chlorofluoroether compositions consisting or consisting essentially of one or a selected mixture of perhalogenated chlorofluoroether compounds are provided by direct fluorination of the corresponding chloroether or chlorofluoroether precur... | 05/30/1995 |
