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| Number | Title | Issue Date |
| 7371904 | Processes for synthesis of 1,3,3,3-tetrafluoropropene Disclosed is a process for the synthesis of 1,3,3,3-tetrafluoropropene which comprises, in one embodiment, reacting a compound of CF3X1 with a compound of CX2H═CHX3, wherein X1, X2, and X3 | 05/13/2008 |
| 7304191 | Process for the synthesis of fluoroorganic compounds The present invention relates to a fluorination method for the synthesis of halofluoroorganic compounds which can be used, inter alia, as precursors in the synthesis of 2,3-unsaturated fluoroorganic carbonyl compounds comprising a fluorine substituent in the 2 posit... | 12/04/2007 |
| 7241928 | Process for the manufacture of halocarbons and selected compounds and azeotropes with HF A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1R2CBR3R4 (where A, B, R1, R2, R3, and R4 are as defined in the specification) whic... | 07/10/2007 |
| 7081279 | Alkenyl compound having a negative Δε value, liquid crystal composition, and liquid crystal display device Liquid crystalline compounds having a large negative Δε low viscosity, a large K33/K11 value, a small Δε/Δ⊥ and mutually excellent solubility even at low temperature, compositions containing at least one of the compounds and liquid cryst... | 07/25/2006 |
| 6987206 | Methods and materials for the preparation and purification of halogenated hydrocarbons Methods and materials are provided for the production and purification of halogenated compounds and intermediates in the production of 1,1,1,3,3-pentafluoropropane. In a preferred embodiment, the process steps include: (1) reacting carbon tetrachloride with vinyl ch... | 01/17/2006 |
| 6710214 | Highly branched perfluoroolefins, super-stable perfluoroalkyl radicals and production methods thereof The present invention is to provide a method for producing a highly branched perfluoroolefin conveniently in a high yield, a novel highly branched perfluoroolefin, a method for producing a super-stable perfluoroalkyl radical and a novel super-stable perfluoroalkyl r... | 03/23/2004 |
| 6692657 | Alkenyl compound having a negative Ɗ&3xb5; value, liquid crystal composition, and liquid crystal display device Liquid crystalline compounds having a large negative Ɗ.di-elect cons. low viscosity, a large K33 /K11 value, a small Ɗ.di-elect cons./Ɗ.perp. and mutually excellent solubility even at low temperature, compositions containing at le... | 02/17/2004 |
| 6664431 | Process for producing fluorinated aliphatic compounds The present invention relates to a process for producing fluorinated aliphatic compounds by pyrolysis of perfluorocarboxylic acids and their derivatives--halides and esters. The pyrolysis is carried out in the presence of a catalyst consisting of a carrie... | 12/16/2003 |
| 6255543 | Partially fluorinated polymers Selected novel partially fluorinated ,ω-dienes can be free radically (co)polymerized to form polymers in which cyclic structures are present. The polymers are useful for films, coatings and molded parts.... | 07/03/2001 |
| 6229058 | Preparation of fluorinated propanes and pentanes The instant invention relates to producing fluorinated propanes and pentanes. More particularly it relates to producing perhalofluoropropanes and pentanes by reacting dihalodifluoromethanes with polyfluoroethylenes, notably tetrafluoroethylene (TFE) and c... | 05/08/2001 |
| 6156943 | Halogenated hydrocarbons containing fluorine and processes for their manufacture Processes are disclosed for producing hydrohaloolefins having the formula CF2 .dbd.C(CH2 RF)CF3, the formula FRCF.dbd.C(CH2 RF)CF3 or the formula FRCF.dbd.C(CH2 RF)(CF2 RF) wherein ... | 12/05/2000 |
| 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 |
| 5914423 | Difluorobutenes and difluorobutanes A process for the preparation of a compound of formula (I): HetSCH2 CH2 CH.dbd.CF2 (I) wherein Het is an optionally substituted 5- or 6-membered heterocyclic ring, which comprises reacting a compound of formula ... | 06/22/1999 |
| 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 |
| 5777184 | Preparation of fluoroalkyl compounds and their derivatives A process for producing a fluorinated olefin having the formula: CH3-a Fa CH.dbd.CHCl where a=1,2 or 3, said process comprising catalytically reacting a chlorinated organic compound with a fluorination agent under conditions sufficient to... | 07/07/1998 |
| 5750808 | Dehydrohalogenation processes A process is disclosed for the dehydrohalogenation of partially halogenated ethanes of the formula C2 Ha Clb Fc where a is an integer from 1 to 4, b is an integer from 0 to 3 and c is an integer form 1 to 5 to p... | 05/12/1998 |
| 5714649 | 1-Halo-cis-3-tetradecenes and processes for the preparation of cis-Olefin compounds by using same Disclosed are compounds suitable for use as raw materials which enable cis-olefin compounds useful as physiologically active substances such as the sex pheromones of various insects, or as intermediates for the synthesis thereof to be prepared on an indus... | 02/03/1998 |
| 5714654 | Method of Producing 1,1,1,3,3-pentafluoropropane and/or 1,1,3,3,3-pentafluoropropene A method is proposed for producing 1,1,1,3,3-pentafluoropropane, in which 1,1,3,3,3-pentafluoropropene is reduced at a temperature between 40° C. and 300° C. by reacting it with hydrogen in a gas phase in the presence of a palladium catalyst. Further, a... | 02/03/1998 |
| 5681902 | Process for the perfluoroalkylation of substances having terminal unsaturation Free radical reaction of unsaturated material, dissolved in a polar, water immiscible organic solvent, & perfluoroalkyl iodide in the presence of buffer or means for adjusting pH of aqueous phase.... | 10/28/1997 |
| 5654473 | Intermediates for the synthesis of trifluoromethylated organic compounds Novel trifluoromethylated intermediates are provided which are useful in synthesizing trifluoromethylated organic compounds. Specifically, compounds of the formula CF3 CCl.dbd.CHCH2 X are provided, which compounds are versatile inter... | 08/05/1997 |
| 5648560 | Process for preparing perhaloethers from perhaloolefins and new perhaloethers so obtained A process for preparing perhaloethers from perhaloolefins by reacting at least one fluorooxy compound Rx --OF, wherein Rx is a perhaloalkyl radical, with a perfluoroolefin in a liquid phase, optionally containing an organic solvent i... | 07/15/1997 |
| 5585517 | Process for reacting a perfluoroalkl iodide with an olefinic compound A novel process is described for reacting a perfluoroalkyl iodide with an olefinic compound, which comprises carrying out a free-radical addition reaction of the perfluoroalkyl iodide to the olefin in the presence of azoic or peroxy initiator and a water-... | 12/17/1996 |
| 5557018 | Partially flourinated polymers and process therefor Selected partially fluorinated ,ω-dienes can be (co)polymerized to form polymers in which cyclic structures are present. A novel free radical polymerization process, in which the polymer obtained is dependent on the initiator used, is described. T... | 09/17/1996 |
| 5532419 | Processes for the preparation of fluorinated olefins and hydrofluorocarbons using fluorinated olefin The invention relates to a cost effective and convenient process for the manufacture of fluorinated olefins of the formula RCF2 CH.dbd.CH2 where R is Cx Cly Fz and y+z=2x+1. The invention is also dire... | 07/02/1996 |
| 5488188 | Process for the preparation of (E)-1-amino-2-(fluoromethylene)-4-(p-fluorophenyl)butane, novel processes for preparing an intermediate thereof, and novel intermediates thereof The present invention relates to a novel process for preparing (E)-1-amino-2-(fluoromethylene)-4-(p-fluorophenyl)butane, also known in the art as (E)-(p-fluorophenethyl)-3-fluoroallylamine, novel intermediates thereof, a novel process for the preparing ... | 01/30/1996 |
| 5481050 | Processes for the preparation of fluorinated olefins and hydrofluorocarbons using fluorinated olefin The invention relates to a cost effective and convenient process for the manufacture of fluorinated olefins of the formula RCF2 CH=CH2 where R is Cx Cly Fz and y+z=2×+1. The invention is also directe... | 01/02/1996 |
| 5463149 | 1-halo-cis-3-tetradecenes and processes for the preparation of cis-olefin compounds by using same Disclosed are compounds suitable for use as raw materials which enable cis-olefin compounds useful as physiologically active substances such as the sex pheromones of various insects, or as intermediates for the synthesis thereof to be prepared on an indus... | 10/31/1995 |
| 5446217 | Processes for the preparation of fluorinated olefins and hydrofluorocarbons using fluorinated olefin The invention relates to a cost effective and convenient process for the manufacture of fluorinated olefins of the formula RCF2 CH=CH2 where R is Cx Cly Fz and y+z=2x+1. The invention is also directed... | 08/29/1995 |
| 5347058 | Process for the production of fluorinated olefins Fluorinated olefins are produced by thermolysis of a silyl ester of a fluorinated aliphatic carboxylic acid in the presence of a catalyst which provides fluoride ion, such as potassium fluoride. The fluorinated olefins are useful as monomers and chemical ... | 09/13/1994 |
| 5342985 | Organic derivatives of rhenium oxides and their preparation and use for the metathesis of olefins The invention relates to a process for the metathesis of olefins which comprises reacting an olefin of the formula YCZ.dbd.CZ--(CX2)n R2 (II) wherein n is an integer from 1 to 28, X represents H or F, Y represents H or alkyl ha... | 08/30/1994 |
| 5276221 | Process for production of polyfluoroolefins This invention concerns a process for the production of polyfluoroolefins by the catalytic addition of polyfluoroallylic fluorides to fluoroethylenes. 1:1 and 1:2 Adducts such as F-pentene-2 and F-heptene-3 can be formed selectively and reduced further to... | 01/04/1994 |
| 5258561 | Catalytic chlorofluorination process for producing CF3 CHClF and CF3 CHF2 A chlorofluorination process is disclosed which employs a catalyst comprising chromium oxide for producing halohydrocarbons of the formula CHXFCF3 (where X is selected from Cl and F). The process is characterized by feeding a combination of com... | 11/02/1993 |
| 5220082 | Process for production of polyfluoroolefins This invention concerns a process for the production of polyfluoroolefins by the catalytic addition of polyfluoroallylic fluorides to fluoroethylenes. 1:1 and 1:2 Adducts such as F-pentene-2 and F-heptene-3 can be formed selectively and reduced further to... | 06/15/1993 |
| 5177272 | Process for preparing perhalogenated olefins The invention relates to a process for preparing perhalogenated olefins which comprises reacting a perhalogenated alkane, having at least one atom of a halogen different from fluorine, with a tris-dialkylamino phosphine at temperature not higher than 60°... | 01/05/1993 |
| 5068415 | Process for the preparation of halogenotetrafluoropropionic acid The halogenotetrafluoropropionic acid 3-iodotetrafluoropropionic acid of the formula ICF2 CF2 COOH, it is prepared by reacting iodine, tetrafluoroethylene and ethylene in a one-pot reaction under specific conditions, reacting the res... | 11/26/1991 |
| 5017718 | Process for preparing polyfluoroalkyl-substituted compounds A process for preparing a perfluoroalkyl-substituted compound is disclosed. The process comprises reacting a halopolyfluoroalkane having 1 to 20 carbon atoms with a compound selected from the group consisting of (1) a substituted or unsubstituted ethylene... | 05/21/1991 |
| 4997855 | Vinyl fluorides and pesticidal uses Nematodes and insects are controlled by application of vinyl fluorides of the formula ##STR1## where R is CH2 X--, CHX2 --, CX3 --, XCH.dbd.CH--, CH2 .dbd.CX-- or straight chain alkyl(C2 -C8... | 03/05/1991 |
| 4968851 | Halogenoolefin pesticides A method of combating arthropods and nematodes which comprises applying thereto, to a habitat thereof or to an area from which they are to be excluded an arthropodicidally or nematocidally effective amount of at least one long-chain halogenoolefine of the... | 11/06/1990 |
| 4876285 | Vinyl fluorides and pesticidal uses Nematodes and insects are controlled by application of vinyl fluorides of the formula ##STR1## where R is CH2 X--, CHX2 --, CX3 --, XCH.dbd.CH--, CH2 .dbd.CX-- or straight chain alkyl(C2 -C8... | 10/24/1989 |
| 4876405 | Process for preparing fluoroethylenes and chlorofluoro-ethylenes from chlorofluoroethanes A process for preparing fluoroethylenes and chlorofluoroethylenes starting from chlorofluoroethanes and hydrogen, carried out in gas phase at a temperature ranging from 150° to 600° C., in the presence of a hydrogenation catalyst, wherein the chlorofluo... | 10/24/1989 |
