Hydrogen Peroxide Patents (Class 204/175)
  • Patent number: 8956508
    Abstract: The present invention relates to a method for preparing an aqueous solution of hydrogen peroxide from oxygen, hydrogen and optionally water. The invention more particularly relates to a method for preparing an aqueous solution of hydrogen peroxide in which at least a portion of the reactor is cooled down to a temperature lower than 15° C.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: February 17, 2015
    Assignees: Arkema France, Centre National de la Recherche Scientifique, Universite Claude Bernard Lyon 1
    Inventors: Jean-Luc Dubois, Markus Brandhorst, Daniel Bianchi, Frederic Thevenet
  • Patent number: 8784769
    Abstract: Disclosed herein is a catalyst, including, in one example: a carrier, a polymer electrolyte multilayer film formed on the carrier, and metal particles dispersed in the polymer electrolyte multilayer film. The catalyst can be easily prepared, and can be used to produce hydrogen peroxide in high yield in the presence of a reaction solvent including no acid promoter.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: July 22, 2014
    Assignee: SK Innovation Co., Ltd.
    Inventors: Young Min Chung, Yong Tak Kwon, Tae Jin Kim, Seung Hoon Oh, Chang Soo Lee, Bo Yeol Kim
  • Publication number: 20110272274
    Abstract: The present invention relates to a method for preparing an aqueous solution of hydrogen peroxide from oxygen, hydrogen and optionally water. The invention more particularly relates to a method for preparing an aqueous solution of hydrogen peroxide in which at least a portion of the reactor is cooled down to a temperature lower than 15° C.
    Type: Application
    Filed: October 27, 2009
    Publication date: November 10, 2011
    Applicants: Arkema France, Uniersite Claude Bernard, Centre National De La Recherche Scientifique
    Inventors: Jean-Luc Dubois, Markus Brandhorst, Daniel Bianchi, Frederic Thevenet
  • Patent number: 7993495
    Abstract: A method is provided for decontaminating a surface that is susceptible to contamination by a contaminant by applying to the surface a coating which produces a decontaminating agent for the contaminant in response to a signal, connecting the electroactive coating to a source of a signal, and when the surface is contaminated, applying the signal to the electroactive coating, thereby producing one or more decontaminating agents which neutralize or destroy the contaminant. Coatings for practicing the method and articles that have been protected by the novel coatings are also provided.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: August 9, 2011
    Assignee: Crosslink Polymer Research, a division of Lumimove, Inc.
    Inventors: Patrick J. Kinlen, Yiwei Ding, James K. Bashkin, Shifeng Hou
  • Patent number: 6998027
    Abstract: A compact capacitively coupled electrode structure for use in a gas plasma reactor/generator is disclosed. The electrode structure comprises a parallel plate type anode and cathode spaced to define a gas flow path or volume therebetween. A plurality of electrically conductive fin elements are interposed in the space between the anode and cathode. The fin elements substantially increase the ratio of electrode surface area to volume, and subdivide the gas flow path or volume, thereby substantially increasing the efficiency of plasma gas processing that is possible over a broad range of operating parameters, without substantially increasing the spacing between the anode and cathode. Static or closed operation is also disclosed. Also disclosed is a multi-anode/multi-cathode electrode assembly embodying the basic electrode structure and a highly efficient and compact gas plasma reactor/generator employing the assembly.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: February 14, 2006
    Assignee: DryScrub, ETC
    Inventor: Kin-Chung Ray Chiu
  • Patent number: 6235491
    Abstract: An assay for the presence of an analyte or determining a biological or medical parameter comprising the steps of adding an assay component to a pH-sensitive material charged with magnetic particles, wherein the assay component causes a pH change which is a function of the analyte or parameter to be measured; subjecting the magnetic particles to an oscillating magnetic field; and measuring the effect of the magnetic field on the magnetic particles. The assay is an enzyme immunoassay. A kit for practicing the enzyme immunoassay is also described.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: May 22, 2001
    Assignee: Byk Gulden Italia S.p.A.
    Inventor: Patricia Connolly
  • Patent number: 5611088
    Abstract: Method and device for disinfecting a flush toilet. The device is an electrocell mounted in the tank of the toilet, with two wire mesh electrodes immersed in the water in the tank and a battery applying approximately one to two volts of electric potential to the electrodes so that they chemically reduce a portion of the water in the tank to hydrogen peroxide. Then, when the tank is flushed, the peroxide is carried into the bowl where it can kill bacteria.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: March 18, 1997
    Inventor: Amy C. Almon
  • Patent number: 5378436
    Abstract: A method for producing hydrogen peroxide by electrical discharge in a material gas in which oxygen concentration is not less than 0.5% and less than 13% is disclosed in the first aspect. In the second aspect, an apparatus for producing hydrogen peroxide having a plurality of electrical discharge chambers connected in series is disclosed. In the third aspect, an apparatus in which a material gas is recycled is disclosed. In the forth aspect, an apparatus having its electrodes covered with dielectric and an electrical discharge chamber which is cooled by a cooling member. In the fifth aspect, a method for producing hydrogen peroxide having a step of inactivating radical species produced by electrical discharges is disclosed. In the sixth aspect, an apparatus having a condensation tube coated with resin with low reactivity with hydrogen peroxide is disclosed.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: January 3, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shinji Endoh, Keisuke Namba, Shigenori Yagi, Kazuhiko Maeda
  • Patent number: 4094758
    Abstract: The present invention relates to a process for preparing high purity inorganic higher oxides of the alkali and alkaline earth metals by subjecting the hydroxide of the alkali or alkaline earth metal to a radio frequency discharge sustained in oxygen. The invention is particularly adaptable to the production of high purity potassium superoxide (KO.sub.2) by subjecting potassium hydroxide to glow discharge sustained in oxygen under the pressure of about 0.75 to 1.00 torr.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: June 13, 1978
    Inventors: James C. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Fletcher, Pasupati Sadhukhan, Alexis T. Bell