Patents by Inventor Eva Pischedda

Eva Pischedda 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).

  • Pur-polyester flexible foams based on polyetheresterpolyols
    Publication number: 20070010593
    Abstract: The present invention relates to polyetheresterpolyols which have a hydroxyl number of from 60 to 160 and a viscosity of ?500 mPas at 75° C. These polyetheresterpolyols contain repeat units derived from I) aliphatic polycarboxylic acids, II) polyols having a hydroxyl number greater than 550 mg KOH/g, and III) polyols containing ether groups and having a hydroxyl number less than 120 mg KOH/g.
    Type: Application
    Filed: July 3, 2006
    Publication date: January 11, 2007
    Inventors: Hartmut Nefzger, Bert Klesczewski, Eva Pischedda, Manduela Otten
  • Process for working up polymer dispersions in polyesterpolyols
    Publication number: 20050124733
    Abstract: The present invention relates to a process for reducing the residual monomer content of polymer dispersions in polyester polyols.
    Type: Application
    Filed: December 2, 2004
    Publication date: June 9, 2005
    Inventors: Hartmut Nefzger, Eva Pischedda, Erhard Michels