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Matches 451 - 500 out of 6,340

Document Document Title
WO/2004/037752A2
Provided are azeotrope-like compositions comprising pentafluoropropene (HFO-1225) and a fluid selected from the group consisting of 3,3,3-trifluoropropene ('HFO-1243zf'), 1,1-difluoroethane ('HFC-152a'), trans-1,3,3,3-tetrafluoropropene ...  
WO/2004/037913A2
The use of pentafluoropropene (HFO-1225) and tetrafluoropropene (HFO-1234) in refrigeration equipment is disclosed. These materials are generally useful as refrigerants for heating and cooling, as blowing agents, as aerosol propellants, ...  
WO2004018093A3
A crystalline alpha-chromium oxide where from about 0.05 atom % to about 6 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by trivalent cobalt (Co<+3>) atoms is disclosed. Also disclosed is a chromium-contai...  
WO2004018394A3
The invention relates to a pentafluoroethane production method, whereby tetrafluoroethylene is reacted with a hydrofluoride having an organic nitrogenous base at a temperature greater than 100 DEG C but which does not exceed 160 DEG C  
WO2003077034A3
This invention concerns radiation durable organic compositions which are well-suited for use in 157 nm lithography by virtue of their high transparency and excellent radiation durability, and to a process for the preparation thereof.  
WO/2004/018397A1
A process for the preparation of 2-chloro-1,1,1,3,3,3-heptafluoropropane is disclosed which involves (a) contacting a mixture comprising hydrogen fluoride, chlorine, and at least one starting material selected from the group consisting o...  
WO/2004/018093A2
A crystalline alpha-chromium oxide where from about 0.05 atom % to about 6 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by trivalent cobalt (Co+3) atoms is disclosed. Also disclosed is a chromium-containi...  
WO/2004/018095A1
A crystalline alpha-chromium oxide where from about 0.05 atom % to about 2 atom % of the chromium atoms in the alpha-chromium oxide lattice are substituted by nickel atoms, and optionally, additional chromium atoms in the alpha-chromium ...  
WO/2004/018394A2
The invention relates to a pentafluoroethane production method, whereby tetrafluoroethylene is reacted with a hydrofluoride having an organic nitrogenous base at a temperature greater than 100 °C but which does not exceed 160 °C  
WO/2004/018396A1
A process for the preparation of pentafluoroethane is disclosed which involves contacting a mixture comprising hydrogen fluoride and at least one one starting material selected from haloethanes of the formula CX3191CHX2 and haloethenes o...  
WO2003066214A3
The invention relates to a catalyst-composition for the oxychlorination of ethylene, containing a mixture of metal salts on a support, whereby the above-mentioned metal salts are applied to the support in such ratio proportions that the ...  
WO/2004/005225A1
A process for the preparation of fluorine-containing alkyl halides represented by the general formula (II): Rf-CH2CH2X (II) [wherein X is halogeno; and Rf is perfluoroalkyl having 1 to 20 carbon atoms or polyfluoroalkyl having 1 to 20 ca...  
WO/2004/005226A1
ABSTRACT A process comprising bringing crude pentafluoroethane containing at least one compound selected from the group consisting of hydrofluorocarbons containing one carbon atom, hydrochlorofluorocarbons containing one carbon atom and ...  
WO2003004463A9
The invention concerns fluorofunctional statistical polymers of formula (V1), wherein: X, Y and Z represent a hydrogen atom and exhibiting in particular low glass transition temperatures obtained in particular from a monomer of formula (...  
WO2003068737A3
The present invention is directed to labeled compounds, [<2 >111, <13>C],< >[<2 >H2, 13C] and [<2 >H3, <13>C]methyl aryl sulfides wherein the <13>C< >methyl group attached to the sulfur of the sulfide includes exactly one, two or three d...  
WO/2003/095405A1
A guest-host assembly having a generally spheroidal host assembly formed of trimers of calixarene molecules in a hexagonal close-packed assembly and its preparation. The calixarene trimers are associated together predominantly by van der...  
WO/2003/091199A1
The invention relates to a method for converting a tertiary OH group of an organic compound into a tertiary CI group of said organic compound using a solvent selected from the group containing toluene, o-xylene, m-xylene, p-xylene and mi...  
WO/2003/091188A1
A process for the separation of HCFC-124 from its isomer HCFC-124a, comprising the continuous feeding of a mixture of the two isomers on molecular sieves having sizes comprised between 4Å and 10Å, and the desorption of HCFC-124 by heat...  
WO/2003/089391A1
A process for economically producing 1,1,1,3,3−pentachloropropane under conditions which preserve the activity of the catalyst. In a preferred embodiment, a two−stage distillation process is employed. In the two−stage process, the ...  
WO2003029173A3
Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isome...  
WO/2003/087111A1
The invention relates to a method for producing monohydro-perfluoroalkanes, bis(perfluoroalkyl)phosphinates, and perfluoroalkylphosphonates, according to which at least one perfluoroalkylphosphorane is treated with at least one base in a...  
WO2002100809A3
A process is provided for the stabilization of polychlorinated alkanes against dehydrochlorination. The process comprises adding a phenol compound to a polychlorinated alkane such that the dehydrochlorination of the polychlorinated alkan...  
WO/2003/084688A2
Figure 1 shows the method and system for generating a metal thin film (170) with a uniform crystalline orientation and a controlled crystalline microstructure are provided. For example, a metal layer is irradiated with a pulse laser (111...  
WO/2003/082784A1
An improved liquid phase process is provided for the fluorination of perchloroethylene to 1,1-dichloro-2,2,2-trifluoroethane in the presence of an antimony catalyst.  
WO2001027057A8
A process for removing a chlorinated methane impurity from a stream comprising of halogenated compound other than the chlorinated methane impurity, the process comprising contacting the stream with a polymer adsorbent to produce a purifi...  
WO/2003/080549A1
A high-purity pentafluoroethane is produced through a process comprising (1) a step of fluorinating tetrachloroethylene to obtain a crude pentafluoroethane containing impurities and (2) a step of bringing the crude pentafluoroethane cont...  
WO2002059068A3
The invention relates to azeotropic and azeotrope-like mixtures of 1-chloro-1,3,3,3-tetrafluoropropane (HCFC-244fa) and hydrogen fluoride, which are useful as intermediates in the production of HCFC-244fa.  
WO/2003/077034A2
This invention concerns radiation durable organic compositions which are well-suited for use in 157 nm lithography by virtue of their high transparency and excellent radiation durability, and to a process for the preparation thereof.  
WO2003000626A3
Process for the treatment of by-products from a reaction for the production of organic compounds comprising a stage of evaporation of a liquid phase comprising heavy by-products on a surface, in order to form a concentrated phase compris...  
WO2003004445A3
Tetrachloroethylene containing a stabilizer is contacted with a zeolite having an average pore size of 3.4 to 11 and/or a carbonaceous adsorbent having an average pore size of 3.4 to 11 in a liquid phase to obtain a high purity tetrachlo...  
WO/2003/068737A2
The present invention is directed to labeled compounds, [2 111, 13C], [2 H2, 13C] and [2 H3, 13C]methyl aryl sulfides wherein the 13C methyl group attached to the sulfur of the sulfide includes exactly one, two or three deuterium atoms a...  
WO/2003/068716A1
The present invention involves processes that utilize an olefinic compound, in particular, hexafluoropropene (HFP) or chlorotrifluoroethene (CFC−1113) as extracting agents in the purification of pentafluoroethane (HFC−125). These pro...  
WO/2003/068717A1
The invention relates to the use of a composition on the basis of stabilized trichloroethylene with an amine and a phenol as starting materials, particularly for synthesizing hydrofluoroalkanes (HFA).  
WO/2003/066210A1
The invention relates to a liquid phase fluorination reactor. The inventive reactor comprises, by way of a heating means, an element which is fixed to the cover thereof in such a way that it extends down the bottom of the tank. The inven...  
WO/2003/066214A2
The invention relates to a catalyst-composition for the oxychlorination of ethylene, containing a mixture of metal salts on a support, whereby the above-mentioned metal salts are applied to the support in such ratio proportions that the ...  
WO/2003/064360A1
The invention relates to novel synthetic tetraethers and a novel method for producing said substances. The inventive tetraethers are characterised in that they can be modified in a simple and targeted manner according to said synthesis m...  
WO2002076913A3
The invention relates to a method for preparing a halogenated olefin by reacting an alkyne and/or an allenic compound with a hydrogen halide in a liquid medium comprising at least one hydrohalogenation catalyst containing at least one pa...  
WO/2003/053580A1
Catalysts such as antimony halides can be used during fluorination reactions involving hydrogen fluoride. Said catalysts can be reduced during the reaction. Oxidation is usually carried out by introducing elementary halogen, preferably c...  
WO/2003/051800A1
A fluoroalkene is reacted with hydrogen iodide gas in the presence of a catalyst to produce a fluoroalkyl iodide represented by the general formula (II): Rf−CH2CH2I (II) wherein Rf represents C1−20 perfluoroalkyl or polyfluoroalkyl. ...  
WO/2003/051802A1
The present invention relates to the co-pyrolysis of fluoroform and chlorodifluoromethane to form a mixture of useful fluoroolefin and saturated HFCs, notably, tetrafluoroethylene and hexafluoropropylene and CF¿3?CHF¿2? and CF¿3?CHFCF...  
WO/2003/048088A1
The invention relates to a method for the production of 1,2-dichloroethane, comprising the following steps: (A) feeding a feed gas flow containing an ethane into a dehydrogenation zone; dehydrogenating the ethane into ethene while obtain...  
WO/2003/045880A1
A process for preparing 1-chloro-1,1,3,3,3-pentafluoropropane, CF¿3?CH¿2?CF¿2?Cl, comprising contacting in a reaction zone in the substantial absence of oxygen, reactants comprising chlorine and 1,1,1,3,3-pentafluoropropane, CF¿3?CH...  
WO2003018552A3
The present invention is directed to protected amino acid halide monomers and oligomers, and to their use in the efficient sythesis of polyamides. The present invention is further directed to the use of -haloenamine reagents, which may o...  
WO/2003/042138A1
A method is described for producing n-propyl bromide of a high degree of purity, which contains isopropyl bromide in an amount lower than 0.1% w/w, and usually lower than 0.05%. The method is characterized in that n-propanol is reacted w...  
WO2002077117A3
Provided are azeotropic and azeotrope-like mixtures of 1,1,1,3,3- pentafluoropropane (HFC-245fa) and 1-chloro-1,1,3,3,3-pentafluoropropane (HCFC-235fa) that are useful as intermediates in the production of HFC-245fa. A process for separa...  
WO2002094751A3
An oxidative halogenation process involving contacting a reactant hydrocarbon selected from methane, a halogenated C1 hydrocarbon, or a mixture thereof with a source of halogen and, preferably, a source of oxygen in the presence of a rar...  
WO2002055459A3
A method of producing hydrofluorocarbons and/or hydrochlorofluorocarbons by using halogenated alkanes as a principal reactant. Generally, the method comprises the step of: (a) reacting a starting halogenated alkane corresponding to the f...  
WO/2003/029173A2
Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isome...  
WO2002102750A3
A process is provided by which addition of water is used to enhance the production of any hydrochlorocarbon feedstock through the use of Kharasch chemistry, i.e. the combination of a polychlorinated alkane with an olefin to produce a chl...  
WO/2003/022786A1
Process for the obtention of HFC-227ea having a reduced content of organic impurities, comprising at least subjecting a crude HFC-227ea to two distillation steps at different pressures.  

Matches 451 - 500 out of 6,340