Patents by Inventor Rudy Francois Alain Joseph Peemans

Rudy Francois Alain Joseph 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).

  • Regeneration of catalysts used in the manufacture of bisphenols
    Patent number: 6680270
    Abstract: A method for regenerating deactivated sulfonated cation exchange catalysts comprises washing the deactivated catalyst with phenol-water mixtures comprising about 5-20 wt. % of water in phenol at a temperature of about 70-95° C.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: January 20, 2004
    Assignee: General Electric Company
    Inventors: Rudy Francois Alain Joseph Peemans, Alexey Kruglov, Sheldon Jay Shafer, Chuks O. Mbeledogu, Darlene Hope Nance, Karl Aaron Baro, Emil Markov Georgiev, Eduard Hendricus Schlarmann, Gaylord Michael Kissinger
  • Regeneration of catalysts used in the manufacture of bisphenols
    Publication number: 20030017935
    Abstract: A method for regenerating deactivated sulfonated cation exchange catalysts comprises washing the deactivated catalyst with phenol-water mixtures comprising about 5-20 wt. % of water in phenol at a temperature of about 70-95° C.
    Type: Application
    Filed: April 24, 2001
    Publication date: January 23, 2003
    Inventors: Rudy Francois Alain Joseph Peemans, Alexey Kruglov, Sheldon Jay Shafer, Chuks O. Mbeledogu, Darlene Hope Nance, Karl Aaron Baro, Emil Markov Georgiev, Eduard Hendricus Schlarmann, Gaylord Michael Kissinger
  • Descaling of bisphenol-A reactor using water
    Patent number: 6011184
    Abstract: An integrated process for the preparation and recovery of BPA in pure form utilizes a series of steps to crystallize the 1:1 adduct of phenol and bisphenol-A, with periodic descaling of the crystallizer surfaces with a modified reactor/crystallizer containing 1 to 40 percent water.
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: January 4, 2000
    Assignee: General Electric Company
    Inventors: Johan Adrianus Aarssen, Gerrit Op Den Dries, Ad Nieuwlaat, Marcel Vieveen, Rudy Francois Alain Joseph Peemans