Patents by Inventor Charles Manuel Navarro

Charles Manuel Navarro has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Use of unsaturated diacyl or acylcarbonate peroxides in cross-linking processes
    Patent number: 6608146
    Abstract: The invention relates to curing process wherein specific unsaturated diacyl-peroxides and/or unsaturated acylperoxycarbonates are used. These peroxides were found to be pre-eminently suited to the curing of silicone rubbers and polyester resins. Their use does not lead to blooming, bad smell and/or discoloration of the cured product, while allowing low residual monomer levels to be obtained at processing temperatures below the temperature used in conventional processes wherein peroxyesters are used.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: August 19, 2003
    Assignee: Akzo Nobel NV
    Inventors: Jernej Jelenic, Charles Manuel Navarro, John Meijer
  • Use of unsaturated diacyl or acylcarbonate peroxides in cross-linking processes
    Publication number: 20010044504
    Abstract: The invention relates to curing process wherein specific unsaturated diacyl-peroxides and/or unsaturated acylperoxycarbonates are used. These peroxides were found to be pre-eminently suited to the curing of silicone rubbers and polyester resins. Their use does not lead to blooming, bad smell and/or discoloration of the cured product, while allowing low residual monomer levels to be obtained at processing temperatures below the temperature used in conventional processes wherein peroxyesters are used.
    Type: Application
    Filed: December 20, 2000
    Publication date: November 22, 2001
    Inventors: Jernej Jelenic, Charles Manuel Navarro, John Meijer
  • Aminoalkane diphosphonic acids in pulp bleaching
    Patent number: 5641386
    Abstract: A process for the bleaching of pulp comprising the step of bleaching the pulp with hydrogen peroxide and an effective amount of at least one biodegradable 1-aminoalkane-1,1-diphosphonate chelating agent to enhance the bleaching of the pulp, is disclosed. Also disclosed is the use of a 1-aminoalkane-1,1-diphosphonate to enhance the bleaching of pulp with hydrogen peroxide, as well as the pretreatment of pulp with a 1-aminoalkane-1,1-diphosphonate prior to the step of bleaching with hydrogen peroxide. Finally, the deinking of pulp in the presence of 1-aminoalkane-1,1-diphosphonate is also disclosed.
    Type: Grant
    Filed: February 8, 1995
    Date of Patent: June 24, 1997
    Assignee: Akzo Nobel NV
    Inventors: Eltjo Boelema, Charles Manuel Navarro, Lambertus Gerhardus Johannus Olde Hanter, Marcellinus Alexander Van Doorn