Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 7601878 | Process and unit for production of perfluoroalkyl iodide telomers A solid catalyst used in, for example, production of a perfluoroalkyl iodide telomer is effectively and continuously recovered and the recovered catalyst is continuously recycled to the reactor for reuse. A slurry containing a reaction product and the catalyst is dr... | 10/13/2009 |
| 7214815 | Metallic copper catalyst for polyfluoroalkylethyl iodide production and process for producing polyfluoroalkylethyl iodide The present invention provides a metallic copper catalyst for use in an ethylene addition reaction to polyfluoroalkyl iodides, a process for efficiently producing a polyfluoroalkylethyl iodide using such a metal copper catalyst in an ethylene addition reaction to a ... | 05/08/2007 |
| 7038095 | Method for producing fluoroalkyl iodide telomer mixture and method for producing mixture fluorine-containing (meth) acrylate esters A mixture of fluoroalkyl iodide telomers represented by the formula: Rf(CF2CF2)nI wherein Rf represents a fluoroalkyl group whose number of carbon atoms is in the range of 1 to 10, with the polymerization degree... | 05/02/2006 |
| 6825389 | Process for manufacturing diiodoperfluoroalkanes The present invention involves a process for the manufacture of α, ω-diiodoperfluoroalkanes of the formula I—(CF2CF2)n—I, wherein n is an integer between 2 and 6. The latter compounds are produced at relatively high conversions... | 11/30/2004 |
| 5908966 | Thermal process for the preparation of a telomeric alkyl iodide Disclosed herein is a telomerization process for preparing fluorinated alkyl iodide telomers, comprising telomerizing a starting polyfluoroalkyl iodide with a terminally unsaturated perfluoro olefin or monochlorofluoro olefin.... | 06/01/1999 |
| 5639923 | Metal-catalyzed preparation of perfluoroalkyl iodide telomers The selectivity of copper as the catalyst for the reaction of short-chain perfluoroalkyl iodides with tetrafluoroethylene is increased if a further transition metal is employed as a cocatalyst.... | 06/17/1997 |
| 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 |
| 5268516 | Synthesis of perfluoroalkyl iodides The invention relates to a continuous process for the preparation of perfluoroalkyl iodides containing from 4 to 12 carbon atoms by thermal telomerization of tetrafluoroethylene by pentafluoroethyl iodide or heptafluoroisopropyl iodide in a tubular reacto... | 12/07/1993 |
| 5254773 | Process for preparing telomers from ethylene and alpha, omega-dibromoperfluoroalkylalkanes in the presence of organic free-radical generators A process is disclosed wherein a telomer having the formula BrCH2 CH2 (CF2 CFX)n CH2 CH2 Br is prepared by reacting a telogen of the formula Br(CF2 CFX)n CH2 CH | 10/19/1993 |
| 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 |
| 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 |
| 4849556 | Process for preparing telomers from chlorotrifluoroethylene and trifluorotrichloroethane Telomers are prepared by reacting chlorotrifluoroethylene with 1,1,2-trichlorotrifluoroethane (CCl2 FCF2 Cl) in the presence of metallic iron or stainless steel, and optionally, a halide-containing compound selected from the group co... | 07/18/1989 |
| 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 |
| 4808760 | Telomers prepared from chlorotrifluoroethylene and 1,2-dibromo-2-chlorotrifluoroethane Telomers are prepared by reacting chlorotrifluoroethylene with 1,2-dibromo-2-chlorotrifluoroethane (CBrClFCF2 Br) in the presence of a redox catalyst system comprising a metal halide selected from the group consisting of FeCl3, FeBr | 02/28/1989 |
| 4691065 | Chlorotrifluoroethylene telomerization process An improved process for preparaing telomers of chlorotrifluoroethylene comprises the solution telomerization reaction of chlorotrifluoroethylene with carbon tetrachloride in the presence of a catalytic amount of cupric chloride (CuCl2) and an i... | 09/01/1987 |
| 4577044 | Preparation of chlorotrifluoroethylene telomers with fluoroxytrifluoromethane Telomers formed by reacting chlorotrifluoroethylene with fluoroxytrifluoromethane are disclosed. The telomerization reaction is conducted in either liquid chlorotrifluoroethylene without a solvent or in solution. The telomers thus formed can optionally be... | 03/18/1986 |
| 4533762 | Preparation of chlorotrifluoroethylene telomers with bisfluoroxydifluoromethane A telomerization process comprises reacting chlorotrifluoroethylene with bisfluoroxydifluoromethane. The telomerization reaction is conducted in either liquid chlorotrifluoroethylene without a solvent or in solution. The telomers thus formed can optionall... | 08/06/1985 |
| 4296265 | Process for preparing hexafluoropropene oligomers Hexafluoropropene oligomers are prepared from hexafluoropropene in a high conversion by contacting gaseous hexafluoropropene with a catalyst comprising an alkali metal fluoride supported on activated charcoal or nickel oxide.... | 10/20/1981 |
| 4067916 | Process for the manufacture of perfluoralkyl iodides A process is provided for the manufacture of fluoralkyliodides of high molecular weight from the corresponding perfluoralkyliodides of lower molecular weight. In this process a perfluoralkyliodide is telomerized with a perfluorethylene or a perfluorpropyl... | 01/10/1978 |
| 4046819 | Alkylation of alkyl, cycloalkyl and aralkyl halides Alkyl, cycloalkyl or aralkyl halides may be alkylated by treatment with an olefin in the presence of a catalyst comprising a free-radical generating compound such as an organic peroxide and also in the presence of a promoter comprising hydrogen chloride, ... | 09/06/1977 |
| 3956412 | Process for the addition of perfluoroalkyl iodides to gaseous halogenated olefins Liquid perfluoroalkyl iodides are added to halogenated gaseous olefins in the presence of free radical generating catalysts. The gaseous olefin is bubbled through liquid perfluoroalkyl iodide and catalyst at temperatures of 50° to 220°C, and pressures n... | 05/11/1976 |
