Acyclic Patents (Class 205/461)
  • Publication number: 20090107849
    Abstract: The present invention provides a process to prepare a halogenated carbonyl group-containing compound by electrochemically reacting the corresponding carbonyl group-containing compound with a hydrogen halide H—X, an organic halide R?—X and/or a halide salt Mn+—Xn? under substantially water-free conditions, wherein X is a chlorine, bromine or iodine atom, R? is an alkyl or aryl group that may be linear or branched, optionally containing one or more heteroatoms such as oxygen, nitrogen, chloride, bromide, fluoride or iodide of which the halogen atom X can be electrochemically split off, Mn+ is a quaternary ammonium, alkaline earth metal, alkali metal or metal cation, and n is an integer of 1 to 5, depending on the valency of the metal cation Mn+.
    Type: Application
    Filed: May 11, 2007
    Publication date: April 30, 2009
    Inventors: Hans Lammers, Willem Koelewijn, Johannes Wilhelmus Franciscus Lucas Seetz, Joldert Faber
  • Patent number: 7087148
    Abstract: The invention relates to compositions and methods useful in the acceleration of binding of target analytes to capture ligands on surfaces. Detection proceeds through the use of an electron transfer moiety (ETM) that is associated with the target analyte, either directly or indirectly, to allow electronic detection of the ETM.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: August 8, 2006
    Assignee: Clinical Micro Sensors, Inc.
    Inventors: Gary Blackburn, Jost G. Vielmetter, Jon Faiz Kayyem
  • Patent number: 6919015
    Abstract: 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 yield tetrafluoroethylene and/or hexafluoropropylene.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: July 19, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Gerald L. Bauer, Jeffrey D. Weigelt, Klaus Hintzer, Gernot Loehr, Werner Schwertfeger, Arthur A. Ponelis
  • Publication number: 20020121446
    Abstract: The present invention relates to fluoro-&agr;,&ohgr;-bis[(fluoroalkyl)fluorophosphorano)]alkanes, to a process for their preparation, and to their use as intermediates.
    Type: Application
    Filed: February 28, 2002
    Publication date: September 5, 2002
    Applicant: MERCK KGAA
    Inventors: Michael Schmidt, Andreas Kuhner, Nikolai Ignatyev, Peter Sartori
  • Patent number: 6391182
    Abstract: Described is a process for the electrochemical fluorination of a substrate, the process comprising the steps of: providing a substrate comprising at least one carbon-bonded hydrogen; preparing a reaction solution comprising the substrate and hydrogen fluoride; passing electric current through the reaction solution sufficient to cause replacement of one or more hydrogens of the substrate with fluorine, the electric current being interrupted through a current cycle defined by current levels comprising an elevated current and a reduced current; wherein the current varies in such a manner that the resistance of the cell operated with interrupted current is lower than the resistance of the cell operated with non-interrupted current.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: May 21, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: John C. Smeltzer, Charles F. Kolpin
  • Patent number: 5874212
    Abstract: Simple methods of detecting single base pair mutations and other mutations in nucleic acid sequences are provided comprising generating a sample which may comprise heteroduplexes and homoduplexes and performing gel electrophoresis on the sample. The sample may be analyzed for one or more isolated high-melting domains prior to performance of gel electrophoresis. Kits are also provided.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: February 23, 1999
    Assignee: Thomas Jefferson University
    Inventors: Darwin J. Prockop, Matthew J. Rock, Arupa Ganguly
  • Patent number: 5575906
    Abstract: Process for the electrochemical fluorination of a hydrocarbon substrate in the presence of a HF-containing electrolyte under electrochemical fluorination conditions to a fluorinated product and a hydrogen gas by-product, the improvement of which comprises additional steps of(a) continuously separating the formed fluorinated product from the electrolyte by extracting the electrolyte with an extraction agent,(b) continuously separating residual amounts of the fluorinated product from the hydrogen gas by-product by extraction of the gas with an extraction agent; and(c) recovering the fluorinated product by distillation of the extraction agent from step (a) and step (b).
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: November 19, 1996
    Assignee: Haldor Tops.o slashed.e A/S
    Inventors: Sven I. Hommeltoft, Ole Ekelund
  • Patent number: 5565081
    Abstract: This invention relates to chemical processes for preparing tetrafluoropropionate salts and selected derivatives thereof.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: October 15, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Carl G. Krespan, Allen C. Sievert