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| Number | Title | Issue Date |
| 7378194 | Materials useful as electrolytic solutes The invention concerns novel ionic compounds with low melting point whereof the onium type cation having at least a heteroatom such as N, O, S or P bearing the positive charge and whereof the anion includes, wholly or partially, at least an ion imidide such as (FX | 05/27/2008 |
| 7145046 | Production of fluorine compounds Inorganic and organic compounds containing fluorine can be produced, for example, from corresponding chlorine-containing compounds by chlorine/fluorine exchange using fluorinating agents. Monocyclic or bicyclic compounds containing at least two nitrogen atoms, at le... | 12/05/2006 |
| 7083742 | Fluoroiodocarbon blends as CFC and halon replacements A new set of effective, environmentally safe, nonflammable, low-toxicity refrigerants, solvents, foam blowing agents, propellants, and firefighting agents is disclosed. The agents are clean, electrically nonconductive, and have short atmospheric lifetimes, zero ozon... | 08/01/2006 |
| 7071367 | Direct one-step synthesis of CF-I The present invention provides a process for the preparation of trifluoromethyl iodide. The process includes the step of: contacting in a reactor a compound represented by the formula: CF3—W and a compound represented by the formula:... | 07/04/2006 |
| 7030283 | Process for producing 1,1-difluorovinyl cycloaliphatic compounds This invention relates to a process for the preparation of 1,1-difluoroolefins, e.g., difluorovinyl cycloaliphatic compounds such as difluorovinylcyclohexane and derivatives by the dehydrofluorination of a trifluoromethyl-substituted cycloaliphatic compound and the ... | 04/18/2006 |
| 6872861 | Process for preparing polyfluoroalkylithium compounds The invention relates to a process for preparing polyfluoroalkyl-lithium compounds by deprotonation of polyfluoroalkyl compounds by means of lithium bases. ... | 03/29/2005 |
| 6841304 | Materials useful as electrolytic solutes The invention concerns novel ionic compounds with low melting point whereof the onium type cation having at least a heteroatom such as N, O, S or P bearing the positive charge and whereof the anion includes, wholly or partially, at least an ion imidide such as (FX | 01/11/2005 |
| 6784327 | Process for the production of fluorinated organic compounds and fluorinating agents A process for the production of a fluorinated organic compound, characterized by fluorinating an organic compound having a hydrogen atoms using IF5; and a novel fluorination process for fluorinating an organic compound having a hydrogen atoms by using a f... | 08/31/2004 |
| 6610219 | Functional materials for use in optical systems Functional optical materials for optical systems that are typically useful in optical waveguides, optical switching systems, optical modulators, optical computing systems and the like. Included are polymer systems and electrooptical chromophores. Polymers... | 08/26/2003 |
| 6485799 | Aniline derivatives, liquid-crystal composition containing the same, and liquid-crystal display element A aniline derivative represented by general formula (1) ##STR1## wherein R and R' represent independently each other alkyl with 1 to 10 carbon, alkoxyalkyl with 1 to 10 carbon, or hydrogen; x represents cyano, halogen, haloalkyl, haloalkyloxy, or 2-cyanoe... | 11/26/2002 |
| 6365301 | Materials useful as electrolytic solutes The invention concerns novel ionic compounds with low melting point whereof the onium type cation having at least a heteroatom such as N, O, S or P bearing the positive charge and whereof the anion includes, wholly or partially, at least an ion imidide su... | 04/02/2002 |
| 6114589 | Process for the preparation of fluorinated aromatic compounds The invention relates to a process for the preparation of fluorinated compounds Azx ArFw Cl.sub.(y-w) Rz (1) in which Az is a radical --F, --Cl, --Br, --NO2, --CN, --CF3, --CCl3 | 09/05/2000 |
| 5789630 | Process for the synthesis of hexafluoropropanes The invention relates to a method of synthesizing 1,1,1,3,3,3-hexafluoropropanes comprsing the additon of BrF3 to malononitrile.... | 08/04/1998 |
| 5589102 | Benzene derivatives, and liquid-crystalline medium Benzene derivatives of the formula I ##STR1## in which R, A1, A2 X, L1, L2 m and n are as defined in claim are suitable as components of liquid-crystalline media.... | 12/31/1996 |
| 5545768 | Process for the preparation of chlorofluronitrobenzenes and difluoronitrobenzenes A process for the preparation of chlorofluoronitrobenzenes and difluoronitrobenzenes, which comprises heating dichloronitrobenzene to not more than 200° C. in excess with an alkali metal fluoride having a total water content of about 0.2 to about 2.5% by... | 08/13/1996 |
| 5502260 | Process for preparing multiply fluorinated nitrobenzenes Multiply, preferably doubly or triply, fluorinated nitrobenzenes are prepared in an advantageous way from the corresponding chloronitrobenzenes and an alkali metal fluoride in a chlorine-fluorine exchange reaction by catalyzing the reaction with a quatern... | 03/26/1996 |
| 5476976 | Process for preparing fluoronitrobenzenes Fluoronitrobenzenes are prepared in an advantageous way from the corresponding chloronitrobenzenes and an alkali metal fluoride by means of a chlorine-fluorine exchange reaction with replacement of a chlorine atom by a fluorine atom, by catalyzing the rea... | 12/19/1995 |
| 5349098 | Process for producing chlorofluorobenzenes A process for producing chlorofluorobenzenes, which comprises reacting fluorine-containing nitrobenzenes of the following formula (1) with chlorine gas to obtain chlorofluorobenzenes of the following formula (2): ##STR1## wherein n and m are integers... | 09/20/1994 |
| 5315043 | Aromatic nucleophilic fluorination A process for halogen exchange fluorination or fluoro-denitration of aromatic compounds having at least one replaceable non-fluorine halogen or nitro substituent with an anhydrous substantially molten alkali metal acid fluoride composition wherein the alk... | 05/24/1994 |
| 5294742 | Process for preparing 3,5-difluoroaniline Process for preparing 3,5-difluoroaniline, wherein (1) 2,4,5-trichloronitrobenzene is reacted with an alkali metal fluoride in the presence or absence of a polar aprotic solvent at temperatures of about 100° C. to about 250° C., and, after filtering off ... | 03/15/1994 |
| 5262556 | Process for the reaction of halogenated aromatics with electrophiles The invention relates to a process for the reaction of fluorinated or chlorinated aromatics with electrophiles at the ortho position relative to the fluorine or chlorine atom, characterized in that a strong base is added to a mixture of the fluorinated or... | 11/16/1993 |
| 5254732 | N-fluorosulfonimides and their application as fluorinating agents The invention describes N-fluorosulfonimides which are useful as fluorinating agents. The N-fluorosulfonimides are stable, easily synthesized, and allow the introduction of fluorine into organic compounds under mild conditions.... | 10/19/1993 |
| 5212301 | Substituted fluorobenzenes Introduction of a fluoro substituent into an aromatic ring adjacent an electron donating group is difficult producing mixed isomers and low yields of desired products. A process for the introduction of a fluoro substituent into a substantially adjacent po... | 05/18/1993 |
| 5208394 | Process for producing chlorofluorobenzenes A process for producing chlorofluorobenzenes, which comprises reacting fluorine-containing nitrobenzenes of the following formula (1) with chlorine gas to obtain chlorofluorobenzenes of the following formula (2): ##STR1## wherein n and m are integers... | 05/04/1993 |
| 5107046 | Process for preparing aromatic fluorides An improved process is disclosed for preparing aromatic fluorides by diazotization-fluorination in hydrogen fluoride. The improvement includes, prior to the decomposition of the diazonium fluoride, adding to the diazotizing reaction mixture, urea or a sal... | 04/21/1992 |
| 4996377 | Preparation of aliphatically substituted fluorobenzenes Aliphatically substituted fluorobenzenes of the general formula I ##STR1## where R is an aliphatic or cycloaliphatic radical, n is 2, 3 or 4 and X is hydrogen, fluorine, chlorine or bromine, are prepared by diazotization of the corresponding aniline ... | 02/26/1991 |
| 4922041 | Method for producing CF3 I A method for producing trifluoroiodomethane in which a metal Mt selected from the group magnesium, zinc, cadmium, bismuth and tin is reacted in a first step (a) with a trifluorohalomethane, and the resulting reaction mixture is further reacted in a second... | 05/01/1990 |
| 4912268 | Process for manufacture of fluoroaromatics Process which comprises feeding an aromatic amine in the presence of HF to a reaction zone simultaneously with a diazotizing agent so as to effect diazotization of the aromatic amine, thermally decomposing the resulting diazonium salt substantially as it ... | 03/27/1990 |
| 4886920 | Process for preparing aromatic fluorides An improved process is disclosed for preparing aromatic fluorides by diazotization-fluorination in hydrogen fluoride wherein the diazotized reaction mixture includes an oxidizing agent such as nitrosonium ion from excess diazotization agent. The improveme... | 12/12/1989 |
| 4870218 | Trihalobenzene compounds Compounds of the formula: ##STR1## wherein X is selected from bromine and chlorine useful as intermediates in the preparation of insecticidal compounds.... | 09/26/1989 |
| 4839390 | Halogenoolefins as arthropocides and nematocides 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... | 06/13/1989 |
| 4827054 | Method for synthesizing 2,2-bis(4-fluorophenyl)-hexafluoropropane and method for using same to synthesize poly(arylethers) and poly (arylthioethers) Novel processes are provided for synthesizing 2,2-bis(4-fluorophenyl)hexafluoropropane and the use of this synthesized monomer in polymerization reactions to form poly(arylethers) and poly(arylthioethers). Synthesis of 2,2-bis(4-fluorophenyl)hexafluo... | 05/02/1989 |
| 4822927 | Continuous decomposition of diazonium fluorides Disclosed is a process for continuous preparation of aromatic fluorides wherein aromatic diazonium fluorides are continuously decomposed at low concentration in a reaction system of one or more continuous agitated reactors.... | 04/18/1989 |
| 4812572 | Process for preparation of fluoroaromatic or fluoroheterocyclic compounds A process for the preparation of a fluoroaromatic or fluoroheterocyclic compound, which comprises diazotizing the corresponding amino-aromatic or amino-heterocyclic compound in hydrogen fluoride and decomposing the diazonium salt in the diazotization mixt... | 03/14/1989 |
| 4774370 | Process for preparing 2,2-bis-(3-nitrophenyl)-hexafluoropropane, and 2,2-bis-(4-carboxy-3-nitrophenyl)-hexafluoropropane occurring as an intermediate 2,2-Bis-(3-nitrophenyl)-hexafluoropropane is prepared by oxidation of 2,2-bis-(4-methylphenyl)-hexafluoropropane to 2,2-bis-(4-carboxyphenyl)-hexafluoropropane, nitration of this compound to 2,2-bis-(4-carboxy-3-nitrophenyl)-hexafluoropropane and decarbox... | 09/27/1988 |
| 4734533 | Process for the preparation of (2,2)-paracyclophane and derivatives thereof Process for the preparation of (2,2)-paracyclophane or derivatives thereof by the Hofmann elimination of p.-methylbenzyltrimethylammonium hydroxide or derivatives thereof, in an aqueous solution of an alkali metal hydroxide, wherein said elimination is ca... | 03/29/1988 |
| 4730046 | Preparation of aryl halides A process for selectively substituting an aromatic nitro group with a halo group which comprises contacting the nitroaromatic compound with a phosphorushalide of formula: Rn PX5-n wherein n is selected from 0, 1, 2 and 3; R is select... | 03/08/1988 |
| 4585569 | Heat pumps An absorption heat pump wherein the working fluid is a fluoroalkylamine of the formula: ##STR1## wherein each of X and X1, independently, represents hydrogen or fluorine, R represents hydrogen or a lower alkyl radical, n represents an inte... | 04/29/1986 |
| 4541943 | Heat pumps A mechanical vapor recompression heat pump system wherein the working fluid is a saturated fluorohydrocarbon or fluorohydrocarbon ether having from 3 to 5 carbon atoms or a fluorinated amine containing up to 6 carbon atoms and having the formula: ##S... | 09/17/1985 |
| 4479901 | Fluorination of carbanions with N-fluoro-N-alkylsulfonamides Process for fluorinating an organic carbanion, which process comprises contacting and reacting, in a dry inert atmosphere, the compound of the formula selected from ##STR1## wherein ##STR2## is the carbanion, M is a counter ion, and X is a ... | 10/30/1984 |
