Patents by Inventor Elke Bleuel

Elke Bleuel 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).

  • Device for producing polyether alcohols
    Patent number: 7759521
    Abstract: The present invention relates to a process for preparing autocatalytic polyether alcohols by reacting H-functional starter substances containing at least one amino group which is catalytically active in the urethane reaction, in particular a tertiary amino group, and at least one group which is reactive toward alkylene oxides, in particular a primary and/or secondary amino group and/or hydroxyl group, with alkylene oxides, which comprises a) dissolving the starter substance in a solvent, b) reacting the solution with alkylene oxides.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: July 20, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Elke Bleuel, Monika Wetterling, Marita Schuster, Markus Templin, Dieter Rodewald
  • Polyether alcohols and method for the production of polyether alcohols for polyurethane synthesis
    Patent number: 7504543
    Abstract: The invention relates to polyether alcohols, to a process for preparing polyether alcohols by reacting alkylene oxides in the presence of a double metal cyanide (DMC) catalyst with at least one saturated OH component which may, if appropriate, have previously been reacted with an alkylene oxide, wherein an antioxidant is added before or during the reaction, and also to the further processing of the polyether alcohols to form polyurethanes.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: March 17, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Raimund Ruppel, Eva Baum, Thomas Ostrowski, Kathrin Harre, Elke Bleuel
  • Method for the Production of Polyurethane Foam Materials
    Publication number: 20070254973
    Abstract: The invention relates to a process for producing polyurethane foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) catalysts, d) blowing agents, e) if desired, auxiliaries and additives, wherein the compounds having at least two hydrogen atoms which are reactive toward isocyanate groups comprise at least one polar graft polyol.
    Type: Application
    Filed: April 2, 2005
    Publication date: November 1, 2007
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Andreas Emge, Elke Bleuel, Bernd Zaschke, Holger Seifert, Peter Von Malotki
  • Polyether alcohols and method for the production of polyether alcohols for polyurethane synthesis
    Publication number: 20070173628
    Abstract: The invention relates to polyether alcohols, to a process for preparing polyether alcohols by reacting alkylene oxides in the presence of a double metal cyanide (DMC) catalyst with at least one saturated OH component which may, if appropriate, have previously been reacted with an alkylene oxide, wherein an antioxidant is added before or during the reaction, and also to the further processing of the polyether alcohols to form polyurethanes.
    Type: Application
    Filed: March 17, 2005
    Publication date: July 26, 2007
    Inventors: Raimund Ruppel, Eva Baum, Thomas Ostrowski, Kathrin Harre, Elke Bleuel
  • Device for producing polyether alcohols
    Publication number: 20060258832
    Abstract: The present invention relates to a process for preparing autocatalytic polyether alcohols by reacting H-functional starter substances containing at least one amino group which is catalytically active in the urethane reaction, in particular a tertiary amino group, and at least one group which is reactive toward alkylene oxides, in particular a primary and/or secondary amino group and/or hydroxyl group, with alkylene oxides, which comprises a) dissolving the starter substance in a solvent, b) reacting the solution with alkylene oxides.
    Type: Application
    Filed: July 15, 2004
    Publication date: November 16, 2006
    Applicant: BASF Aktiengesellschaft
    Inventors: Elke Bleuel, Monika Wetterling, Marita Schuster, Markus Templin, Dieter Rodewald