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| Number | Title | Issue Date |
| 7880039 | Production of carbonyl fluoride Carbonyl fluoride, which can also be used as an etching gas, can be prepared by photochemical oxidation of chlorodifluoromethane or trifluoromethane with light, for example with light of a wavelength ≧280 nm in the presence of chlorine. ... | 02/01/2011 |
| 7692048 | Method for producing fluorine-containing halide The present invention provides a method for producing a fluorine-containing halide, comprising reacting a fluorine-containing sulfonyl halide or fluorine-containing disulfonyl chloride with a metal halide or metal component in the present or absence of a solvent. In... | 04/06/2010 |
| 7250540 | Process for manufacturing fluoroolefins A process for manufacturing fluoroolefins comprising perfluorinating a starting material comprising at least one carbon-bonded hydrogen by electrochemical fluorination, dissociating this separated effluent in a pyrolysis, quenching and separating the effluent to yie... | 07/31/2007 |
| 7208645 | Process for producing 4-(2-methylphenyl)benzotrifluoride The present invention provides a process for producing 4-(2-methylphenyl)benzotrifluoride, comprising reacting 4-chlorobenzotrifluoride with 2-methylphenylmagnesium chloride in the presence of cobalt-based catalyst and zinc salt. ... | 04/24/2007 |
| 7202324 | Perfluorostyrene compound, and coating solution and optical waveguide device using the same Disclosed is a fluorine compound having perfluorostyrene introduced at a terminal thereof, as represented in the following Formula 1, and a coating solution and an optical waveguide device using the same, characterized in that the introduction of perfluorostyrene re... | 04/10/2007 |
| 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 |
| 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 |
| 7026520 | Catalytic conversion of hydrofluoroalkanol to hydrofluoroalkene Methane is used as the selective dehydrating agent for the production of 2,3,3,3-tetrafluoro-1-propene (R1234yf) from 2,2,3,3,3-pentafluoro-1-propanol. Supported transition metal catalysts are prepared and used for this reaction with high activity. Almost 58% select... | 04/11/2006 |
| 6992229 | Method for purifying a fluorinated hydroxyl compound The present invention has an object to provide a method for purifying a fluorinated hydroxyl compound of the formula 1 safely in a high yield under industrially practical conditions. Namely, a mixture containing a fluorinated hydroxyl compound of Rf—CR | 01/31/2006 |
| 6919480 | Processes for the preparation of fluorinated acyl fluorides and fluorinated vinyl ethers The present invention provides novel processes for preparing a fluorinated acyl fluoride and a fluorinated vinyl ether. Namely, it provides a process for preparing a fluorinated acyl fluoride (3), which comprises reacting a compound (1) having a fluorine cont... | 07/19/2005 |
| 6897344 | Method of treating fluorine compound and treated substance Divalent and trivalent metal salts are added to the solution containing the fluorine compound to precipitate the layered double hydroxide containing the fluorine compound between layers. By these processes, the fluorine compound can be fixed with high rate. Moreover... | 05/24/2005 |
| 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 |
| 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 |
| 6770789 | Process for trifluoromethylation of sulfates The subject invention relates to a process for the trifluoromethylation of sulfates, including cyclic and acyclic sulfates. The subject invention further pertains to the compounds produced by the trifluoromethylation of sulfates. ... | 08/03/2004 |
| 6747174 | Processes for the preparation of fluorinated acyl fluorides and fluorinated vinyl ethers The present invention provides novel processes for preparing a fluorinated acyl fluoride and a fluorinated vinyl ether. Namely, it provides a process for preparing a fluorinated acyl fluoride (3), which comprises reacting a compound (1) having a fluorine cont... | 06/08/2004 |
| 6743957 | Method of treating fluorine compound Divalent and trivalent metal salts are added to the solution containing the fluorine compound and the polymer containing fluorine to precipitate the layered double hydroxide containing the fluorine compound between layers. At this time, the polymer containing fluori... | 06/01/2004 |
| 5831102 | Chemiluminescent 3-(substituted adamant-2'-ylidene) 1,2-dioxetanes Enzymatically cleavable chemiluminescent 1,2-dioxetane compounds capable of producing light energy when decomposed, substantially stable at room temperature before a bond by which an enzymatically cleavable labile substituent thereof is intentionally clea... | 11/03/1998 |
| 5247124 | Process for the preparation of substituted styrenes A process for preparing a substituted styrene by reacting a bisarylalkyl ether in the presence of an acid catalyst is disclosed. The process is preferably used for the preparation of 4-acetoxystyrene from 4,4'-(oxydiethylidene)bisphenol diacetate and 4-me... | 09/21/1993 |
| 5108556 | Process for preparing tertiary perfluoroamines A process for preparing tertiary perfluoroamines is provided. The process comprises electrochemically fluorinating a tertiary thioamide precursor, said thioamide precursor having at least one thioamide moiety, ##STR1## and terminal portions which can... | 04/28/1992 |
| 4956507 | Process for preparing 4,4'-difluorobiphenyl An improved process for preparing high yields of 4,4'-difluorobiphenyl comprised of reacting a p-halofluorobenzene Grignard reagent with a p-halofluorobenzene coupling reagent in the presence of a palladium chloride triphenylphosphine catalyst.... | 09/11/1990 |
| 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 |
| 4849559 | Process for the preparation of dichloro-[2,2]paracyclophane A process is provided for the preparation of the dimer, dichloro-[2,2]paracyclophane, which is useful as the starting material for the deposition of conformal parylene coatings employed, for example, in the electronics industry for the protection of vario... | 07/18/1989 |
| 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 |
| 4775764 | Method for preparing 4,4' difluorobiphenyl An improved method for preparing 4,4' difluorobiphenyl by reacting a parafluorinated Grignard reagent and a parafluorinated halophenyl in solution and in the presence of free palladium producing catalysts is disclosed.... | 10/04/1988 |
| 4758380 | Substituted 1,1,1-triaryl-2,2,2-trifluoroethanes and processes for their synthesis Synthetic procedures to tetraalkyls, tetraacids and dianhydrides substituted 1,1,1-triaryl-2,2,2-trifluoroethanes which comprises: (1) 1,1-bis(dialkylaryl)-1-aryl-2,2,2-trifluoroethane, (2) 1,1-bis(dicarboxyaryl)-1-aryl-2,2,2-trifluoroethane or (3) cyclic... | 07/19/1988 |
| 4618734 | Method of making and polymerizing perfluoroalkylene acetylene compounds A perfluoroalkylene ,ω-diacetylene compound having a fluorocarbon chain of from 5 to about 20 carbon atoms between two acetylene end groups, and a method of forming same by first reacting perfluoroalkylene diiodide having the formula I(CF2 | 10/21/1986 |
| 4575571 | Process for the simultaneous halogenation and fluorination of aromatic derivatives A process for the stimulaneous halogenation and fluorination of aromatic derivatives substituted by at least one group containing a halogenoalkyl unit. The aromatic derivative is reacted with the halogen in liquid hydrofluoric acid. The products obtained ... | 03/11/1986 |
| 4529826 | Solid lubricant and process for preparing it A solid lubricant, consisting of solid perfluorocarbons, with linear or substantially linear carbon atoms chain, containing from 10 to 20 carbon atoms and having a value of surface tension ranging from 13 to 15 dyne/cm, is obtained by dimerization or co-d... | 07/16/1985 |
| 4446075 | Substituted bromofluorobenzene derivatives and process for its manufacture Substituted bromofluorobenzene, wherein the fluorine is in para-position and the bromine in meta-position to another substituent, is prepared by direct bromination of the corresponding fluorobenzene derivative. Bromination is advantageously carried out in... | 05/01/1984 |
| 4367349 | Liquid phase synthesis of hexafluoroisobutylene The process for preparing hexafluoroisobutylene is disclosed which comprises reacting, in the liquid phase, formaldehyde or a formaldehyde-generating compound with hexafluorothioacetone dimer in an aprotic solvent containing at least a catalytic amount of... | 01/04/1983 |
| 4244891 | Preparation of hexafluoroisobutylene The process for preparing hexafluoroisobutylene which comprises reacting, at elevated temperatures, ketene or a ketene-generating compound with hexafluorothioacetone. Hexafluoroisobutylene is a known valuable monomer, which forms polymers of exceptional t... | 01/13/1981 |
| 4214004 | Insecticidal cyclopropanecarboxylates from substituted [1,1'-biphenyl]-3-ylmethyl compounds Substituted [1,1'-biphenyl]-3-ylmethyl 3-(2,2-dihaloethenyl)-2,2-dimethylcyclopropanecarboxylates, as well as processes, uses, and intermediates thereto, are disclosed. The substituted [1,1'-biphenyl]-3-ylmethyl 3-(2,2-dihaloethenyl)-2,2-dimethylcycl... | 07/22/1980 |
| 4188345 | Fluorovitamin D compounds and processes for their preparation Fluorine-substituted vitamin D compounds, methods for preparation of such compounds and fluorinated intermediate compounds used in such methods are disclosed. The fluorine-substituted vitamin D compounds are characterized by vitamin D-like activity in sti... | 02/12/1980 |
| 4139568 | Process for making methyl fluoride Methanol and aqueous HF react in the vapor phase at 250° C.-400° C. in the presence of activated carbon, nickel fluoride, chromium fluoride, aluminum fluoride, or a mixture thereof to produce methyl fluoride plus dimethyl ether as the principal by-produ... | 02/13/1979 |
| 4049708 | Fluorodesulfurization of alkyl mercaptans or alkyl dithianes Organic compounds containing a mercapto group or a dithiane moiety can be transformed into the analogous fluoro or difluoro compounds by reacting them with a halogenating reagent in liquid hydrogen fluoride, optionally containing boron trifluoride or anti... | 09/20/1977 |
