Patents by Inventor Manduela Otten

Manduela Otten 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).

  • METHOD FOR PRODUCING FLAME-RETARDANT POLYURETHANE FOAM MATERIALS HAVING GOOD LONG-TERM USE PROPERTIES
    Publication number: 20120108690
    Abstract: The subject-matter of the present invention relates to a process for the production of flame-retardant polyurethane foams, preferably for the production of flame-retardant flexible polyurethane foams, from A1 a filler-containing polyether polyol (component A1.1), wherein the filler is a reaction product of a di- or poly-isocyanate with a compound containing isocyanate-reactive hydrogen atoms, and optionally further compounds containing isocyanate-reactive hydrogen atoms and having a molecular weight of from 400 to 18,000 (component A1.
    Type: Application
    Filed: July 6, 2010
    Publication date: May 3, 2012
    Applicant: Bayer MaterialScience AG
    Inventors: Bert Klesczewski, Manduela Otten, Sven Meyer-Ahrens
  • Process for producing polyurethane flexible foamed materials having low bulk density
    Publication number: 20080207791
    Abstract: Mechanically compressible polyurethane foamed materials with low bulk density are produced by reacting a polyol component satisfying specified compositional requirements with an isocyanate component that includes a modified toluene diisocyanate. The polyurethane foamed materials produced are useful as acoustic and thermal insulation.
    Type: Application
    Filed: February 20, 2008
    Publication date: August 28, 2008
    Inventors: Bert Klesczewski, Manduela Otten, Bernd Dohmen
  • 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