Patents by Inventor DAGMAR STAHLHUT-BEHN

DAGMAR STAHLHUT-BEHN 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).

  • Patent number: 9056960
    Abstract: A method of thermally insulating a transport means or an industrial or plant construction comprises obtaining a nanoporous foam (NP1) by reacting epoxy resin(s) (E) with amphiphilic epoxy resin hardener(s) (H) in water by a phase inversion polymerization wherein the binder content during polymerization is from 15% to 39.9% by weight, and installing the nanoporous polymer foam as a thermal insulation material in transport means or in an industrial or plant construction.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: June 16, 2015
    Assignee: Cognis IP Management GmbH
    Inventors: Paul Birnbrich, Hans-Josef Thomas, Dagmar Stahlhut-Behn
  • Patent number: 8664285
    Abstract: The invention relates to composite materials, containing (i) a nanoporous polymer foam, which can be obtained by reacting one or more epoxy resins with one or more amphiphilic epoxy resin hardeners in water in a phase inversion polymerization process, and (ii) one or more inorganic fillers and/or inorganic fibers, with the stipulation that hollow glass balls are excluded as fillers. Said composite materials are suitable as heat-insulating materials.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: March 4, 2014
    Assignee: Cognis IP Management GmbH
    Inventors: Paul Birnbrich, Hans-Josef Thomas, Dagmar Stahlhut-Behn
  • Patent number: 8598243
    Abstract: Polymer foams comprising macropores, the macropores having average cross sections of above 500 nm, are obtainable by reacting one or more epoxy resins with one or more amphiphilic epoxy resin hardeners in water in a phase inversion polymerization, where, during the phase inversion polymerization, but after phase inversion has taken place, a volume increase of the internal voids which form initially, and which are present predominantly as micropores having average cross sections of below 500 nm, is induced such that the fraction of the macropores—relative to the entirety of micropores and macropores present in the polymer foam—at the end of the phase inversion polymerization is above 50% by volume. Polymer foams of the present invention are suitable for use as acoustic insulation materials in means of transport and in industrial and plant construction.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: December 3, 2013
    Assignee: Cognis IP Management GmbH
    Inventors: Paul Birnbrich, Hans-Josef Thomas, Dagmar Stahlhut-Behn, Gilbert Schenker
  • Publication number: 20130062552
    Abstract: The invention relates to composite materials, containing (i) a nanoporous polymer foam, which can be obtained by reacting one or more epoxy resins with one or more amphiphilic epoxy resin hardeners in water in a phase inversion polymerization process, and (ii) one or more inorganic fillers and/or inorganic fibers, with the stipulation that hollow glass balls are excluded as fillers. Said composite materials are suitable as heat-insulating materials.
    Type: Application
    Filed: February 18, 2011
    Publication date: March 14, 2013
    Applicant: Cognis IP Management GmbH
    Inventors: Paul Birnbrich, Hans-Josef Thomas, Dagmar Stahlhut-Behn
  • Publication number: 20130062551
    Abstract: Nanoporous polymer foams can be obtained by reacting one or more epoxy resins with one or more amphiphilic epoxy resin hardeners in water in a phase inversion polymerization process, with the stipulation that the binder fraction of the polymer foams is within the range of 15 to 39.9 wt %. Said nanoporous polymer foams are suitable as heat-insulating materials.
    Type: Application
    Filed: February 18, 2011
    Publication date: March 14, 2013
    Inventors: Paul Birnbrich, Hans-Josef Thomas, Dagmar Stahlhut-Behn
  • Publication number: 20120010310
    Abstract: Polymer foams comprising macropores, the macropores having average cross sections of above 500 nm, are obtainable by reacting one or more epoxy resins with one or more amphiphilic epoxy resin hardeners in water in a phase inversion polymerization, where, during the phase inversion polymerization, but after phase inversion has taken place, a volume increase of the internal voids which form initially, and which are present predominantly as micropores having average cross sections of below 500 nm, is induced such that the fraction of the macropores—relative to the entirety of micropores and macropores present in the polymer foam—at the end of the phase inversion polymerization is above 50% by volume. Polymer foams of the present invention are suitable for use as acoustic insulation materials in means of transport and in industrial and plant construction.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 12, 2012
    Applicant: Cognis IP Management GmbH
    Inventors: Paul Birnbrich, Hans-Josef Thomas, Dagmar Stahlhut-Behn, Gilbert Schenker
  • Publication number: 20110284160
    Abstract: The invention relates to 2-component adhesives comprising one or more epoxy resins as a first component (E) and one or more amphiphilic epoxy resin hardeners as a second component (H), wherein the first component (E) and the second component (H) are reacted in water in a phase inversion polymerization.
    Type: Application
    Filed: May 18, 2011
    Publication date: November 24, 2011
    Applicant: COGNIS IP MANAGEMENT GMBH
    Inventors: PAUL BIRNBRICH, HANS-JOSEF THOMAS, DAGMAR STAHLHUT-BEHN