Patents by Inventor Rudy Francois Alain J. Peemans

Rudy Francois Alain J. Peemans 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).

  • Combination ion exchange resin bed for the synthesis of bisphenol A
    Patent number: 6486222
    Abstract: The invention is a catalytic ion exchange resin bed with low pressure drop, low catalyst breakage and low catalyst deactivation as well as an improved process for the production of bisphenol A employing such a catalytic ion exchange resin bed.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: November 26, 2002
    Assignee: General Electric Company
    Inventors: Gaylord M. Kissinger, Sheldon J. Shafer, Harish R. Acharya, Rudy Francois Alain J. Peemans, Eduard H. Schlarmann
  • COMBINATION ION EXCHANGE RESIN BED FOR THE SYNTHESIS OF BISPHENOL A
    Publication number: 20020147241
    Abstract: The invention is a catalytic ion exchange resin bed with low pressure drop, low catalyst breakage and low catalyst deactivation as well as an improved process for the production of bisphenol A employing such a catalytic ion exchange resin bed.
    Type: Application
    Filed: April 9, 2001
    Publication date: October 10, 2002
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Gaylord M. Kissinger, Sheldon J. Shafer, Harish R. Acharya, Rudy Francois Alain J. Peemans, Eduard H. Schlarmann
  • Optimization of polycarbonate preparation by transesterification
    Patent number: 6403754
    Abstract: Acidic impurities in dihydroxyaromatic compounds such as bisphenol A, as illustrated by sulfonic acids and mercaptocarboxylic acids, can have an adverse effect on the molecular weight of a polycarbonate prepared therefrom by transesterification. The same is true of acidic impurities in diaryl carbonates such as diphenyl carbonate, as illustrated by salicylic acid and ferric chloride. The reagents are analyzed for these impurities. Based on the analysis, the reagents are discarded or recycled, or a compensatory amount of alkali metal hydroxide is employed as a catalyst in the reaction.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: June 11, 2002
    Assignee: General Electric Company
    Inventors: Patrick Joseph McCloskey, Paul Michael Smigelski, Jr., Timothy Brydon Burnell, Juan Rodriques Ordonez, Ignacia Vic Fernandez, Gerardo Hidalgo-Llinas, Rudy Francois Alain J. Peemans, Edward Venama