Patents by Inventor Denise R. Butler

Denise R. Butler 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 PREPARING VISCOELASTIC POLYURETHANE FOAM
    Publication number: 20110136930
    Abstract: Viscoelastic polyurethane foam is prepared by using certain additives in the foam formulation. The additives include 1) alkali metal or transition metal salts of carboxylic acids; 2) 1,3,5-tris alkyl- or 1,3,5-tris (N,N-dialkyl amino alkyl)-hexahydro-s-triazine compounds; and 3) C1-12 carboxylate salts of quaternary ammonium compounds. The additives significantly improve processing and in particular permit the use of higher isocyanate indices, which helps to improve foam physical properties.
    Type: Application
    Filed: February 11, 2011
    Publication date: June 9, 2011
    Applicant: Dow Global Technologies LLC (Formerly Known as Dow Global Technologies Inc.)
    Inventors: Denise R. Butler, Bernard E. Obi, Rogelio R. Gamboa, Robert E. O'Neill
  • METHOD FOR PREPARING VISCOELASTIC POLYURETHANE FOAM
    Publication number: 20090292037
    Abstract: Viscoelastic polyurethane foam is prepared by using certain additives in the foam formulation. The additives include 1) alkali metal or transition metal salts of carboxylic acids; 2) 1,3,5-tris alkyl- or 1,3,5-tris (N,N-dialkyl amino alkyl)-hexahydro-s-triazine compounds; and 3) Ci-12 carboxylate salts of quaternary ammonium compounds. The additives significantly improve processing and in particular permit the use of higher isocyanate indices, which helps to improve foam physical properties.
    Type: Application
    Filed: August 3, 2007
    Publication date: November 26, 2009
    Inventors: Denise R. Butler, Bernard E. Obi, Rogelio R. Gamboa, Robert E. O'Neill