Class 570/137 - Bromine or iodine containing

Subclass of Class 570 - Organic compounds -- part of the class 532-570 series
Definition: Compound which contain bromine or iodine.
No. of patents: 34
Last issue date: 05/28/2002

Number	Title	Issue Date
6396680	Monolithic capacitor and process for producing the capacitor A monolithic capacitor including a sintered body formed from a TiO2 -containing reduction-resistant dielectric ceramic material; a plurality of internal electrodes which are formed inside the sintered body, the electrodes being formed of a base...	05/28/2002
6365676	Poly-perfluoroalkyl substituted polyamines as grease proofing agents for paper and foam stabilizers in aqueous fire-fighting foams The invention concerns a process for the reaction of a perfluoroalkyl iodide of the formula CF3 (CF2)h --I, where h is an integer from 4 to 18, with a compound having a terminal olefinic group, which comprises conducting s...	04/02/2002
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
6150565	Process using CF₂ I₂ and olefins for producing diiodo fluorocompounds, and products thereof A process is disclosed for making diiodofluorinated compounds of the formula ICF2 (A)n I wherein n is an integer of at least 1 and each A is CXYCQZ wherein each X, Y, Q, and Z are each independently selected from the group consisting...	11/21/2000
5763552	Hydrogen-containing flourosurfacant and its use in polymerization A partially-fluorinated surfactant having internal methylene groups and having the formula Rf --(CH2)m --R'f --COOM wherein m is 1-3, Rf is perfluoroalkyl or perfluoroalkoxy, containing 3-8 carbon ato...	06/09/1998
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
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
5446214	Cotelomers and a process for making them A cotelomer of --CH2 CF2 -- (VDF) units and CF2 CF(CF3)-- (HFP) units characterized in that the HEP units comprise at least 33% of all VDF and HFP units in the cotelomer combined. Also claimed is a process for p...	08/29/1995
5354928	Process for the manufacture of 1,1,1,2-tetrafluorochloroethane and of pentafluoroethane The invention relates to a process for the manufacture of 1,1,1,2-tetrafluorochloroethane and of pentafluoroethane. The process which consists of gas phase catalytic fluorination of at least one pentahaloethane of formula C2 HX2-n F3...	10/11/1994
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
5288932	Method for the production of substituted or unsubstituted chloromethyl cyclopropane and bromomethyl cyclopropane The present invention relates to a method for the production of substituted or unsubstituted chloromethyl and bromomethyl cyclopropane having a degree of purity above 85%, particularly above 90%, by reacting a hydroxymethyl cyclopropane of the formula ...	02/22/1994
5196614	Process for preparing brominated telomers of chlorotrifluoroethylene The present invention relates to a novel, catalyst-free method for preparing brominated telomers of chlorotrifluoroethylene. The process comprises reacting chlorotrifluoroethylene with a brominated telogen at a temperature in excess of 200° C. for a time...	03/23/1993
5105034	Branched perfluoroalkyl halides and preparation The present invention relates to new perfluoroalkyl halides and to their preparation by a process based on the thermodecomposition of perfluorocarbides in the presence of Cl2, Br2 and I2....	04/14/1992
5068471	Continuous telomerization process A process for continuous telomerization is described, in which at least one telogenic compound and at least one taxogenic compound are reacted at from 40° to 150° C. under a pressure of from 0.1 to 3 MPa in the presence of at least one catalyst in an el...	11/26/1991
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
5057633	Synthesis of perfluoroalkyl bromides The invention relates to the preparation of perfluoroalkyl bromides or bromoperfluoroalkanes Cn F2n+1 -Br (n=1 to 20). A perfluoroalkanesulphonyl chloride Cn F2n+1 -SO2 Cl is reacted with a compound of for...	10/15/1991
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
4983780	Branched perfluoroalkyl halides and preparation The present invention relates to new perfluoroalkyl halides and to their preparation by a process based on the thermodecomposition of perfluorocarbides in the presence of Cl2, Br2 and I2....	01/08/1991
4973762	Process for production of polyfluoroiodide A polyfluoroiodide is produced by reacting an acid halide of a polyfluorocarbon in a perhalogenated solvent with I2 and at least one salt selected from the group consisting of an alkali metal carbonate and an alkaline earth metal carbonate....	11/27/1990
4912269	Synthesis of perfluoroalkyl bromides The invention relates to the preparation of perfluoroalkyl bromides or bromoperfluoroalkanes, CnF2n+1 -Br (n=1 to 20). Gaseous hydrogen bromide is reacted with a perfluoroalkanesulphonyl chloride, Cn F2n+1 -SO2 Cl, i...	03/27/1990
4833274	Perfluoroalkanes and haloperfluoroalkanes, their percursors and process for their synthesis New perfluoroalkanes and haloperfluoroalkanes, having low melting point and high thermal and chemical stability, constituted by preferably branched perfluorinated and haloperfluorinated chains, obtained by starting from precursors containing two halogen a...	05/23/1989
4801763	Selective chlorination of chlorotrifluoroethylene telomers A process is disclosed for purifying and stabilizing a mixture of regular chlorotrifluoroethyelne telomers of formula RCXCl(CF2 CFCl)n Br from bromine-containing irregular telomer impurities of similar molecular weight. The telomer m...	01/31/1989
4760205	2-iodo-perfluoro-2-methylalkanes, processes for their preparation and their use New processes for the preparation of 2-iodo-perfluoro-2-methyl-butane and the corresponding -pentane are described. In one process, perfluoro-2-methyl-2-butene or the corresponding -pentene is reacted in an amount of at least 5 mol with a mixture of 2 mol...	07/26/1988
4754085	Process for the preparation of hydrofluoroalkanes Process for the preparation of hydro(halo)fluoroalkanes by direct fluorination in liquid phase with elemental fluorine at low temperature (under 0° C.) of the corresponding hydro(halo)=alkenes....	06/28/1988
4748284	Process for preparing 1,1-dihalo-1,2,2,2-tetrafluoroethanes A process for preparing 1,1-dihalo-1,2,2,2-tetrafluoroethanes by isomerization of 1,2-dihalotetrafluoroethanes at their reflux temperature, by using, as a catalyst, the reaction product prepared "in situ" from an anhydrous aluminum halide with at least eq...	05/31/1988
4675088	Synthesis of R_f OTeF₅ Pentafluorotellurium hypohalites are reacted with fluorocarbon iodides to form intermediate adducts which are thereafter decomposed to form fluorocarbons containing the TeF5 O-- group....	06/23/1987
4668710	Trihalovinyl polyol ethers Included are trihalovinyl polyol ethers. The compositions have pendant 1,2,2-trihaloethenyl moieties. The compositions may be low viscosity oils or highly polymeric such as incorporated with a urethane or other polymers. One of the uses of the composition...	05/26/1987
4501869	Cross linkable fluorine-containing polymer An easily cross linkable fluorine-containing polymer comprising: (1) a polymeric chain comprising one or more polymer segments, at least one polymer segment of which consists of units of at least one fluorine-containing ethylenically unsaturated compound ...	02/26/1985
4489211	Process for producing 2,2,2-trifluoroethanol A process for producing 2,2,2-trifluoroethanol, which is used for modifying inorganic high polymers such as phosphazene polymers being thermo-resistant, inflammable and oil-resistant, by employing γ-butyrolactone as a reaction solvent....	12/18/1984
4359371	Process for preparing bromine- and fluorine-containing halogenated hydrocarbons A process for brominating fluorine-containing halogenated hydrocarbons is disclosed which comprises the step of reacting at least one halogenated fluorohydrocarbon compound of formula (I) ##STR1## wherein R1 represents hydrogen, fluorine, ...	11/16/1982
4243770	Cross linkable fluorine-containing polymer and its production An easily cross linkable fluorine-containing polymer substantially comprising: (1) a polymeric chain comprising one or more polymer segments, of which at least one polymer segment consisting of units of vinylidene fluoride alone or of units of vinylidene ...	01/06/1981
4228107	Polyhalogenated hydrocarbons, useful as insecticide intermediates, and methods for their preparation Polyhalogenated hydrocarbons of general formula RR1 CH--CHX--CH2 CYZQ wherein R is hydrogen or lower alkyl, R1 is lower alkyl, X is Cl, Br or I, Y is F, Cl or Br, Z is Y or Q and Q is a group W(CF2)m ...	10/14/1980
4219681	Process for the manufacture of 2-(perfluoroalkyl)-ethanols 2-(perfluoroalkyl)-ethanols of the formula in which Rf is a perfluoroalkyl radical having from 1 to 21 carbon atoms, are prepared in an advantageous manner from the corresponding 2-(perfluoroalkyl)-ethyl iodides by reaction with water and N-met...	08/26/1980
3979469	Polyfluoroalkyl iodides, process for their manufacture, and their use New polyfluoroalkyl iodides of the formula ##EQU1## are provided, wherein Rf represents a fluorinated hydrocarbon radical with 3 to 18 carbon atoms, R1 represents hydrogen or fluorine, R3 and R4 each indepe...	09/07/1976

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Class 570/137 - Bromine or iodine containing