Patents by Inventor Lutz BÖHNKE

Lutz BÖHNKE 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: 10808070
    Abstract: The present invention relates to a polyisocyanurate foam obtainable by reacting a mixture in the presence of a catalyst and optionally an initiator, comprising or consisting of: A) a polyisocyanate component comprising at least one aliphatic polyisocyanate; B) a component reactive to isocyanate comprising at least one polyol and/or an alcohol and also optionally an amine; C) at least one blowing agent; D) at least one foam stabilizer and E) optionally at least one additive, characterized in that the mixture, upon accompanying use of an isocyanate-reactive component (polyol, alcohol, amine), has an index of at least 200. The invention further relates to a process for producing such a foam and use thereof as an insulating material, as a construction element, as facade insulation, as reactor insulation, as battery insulation, as superheated steam insulation, as insulation for a still, or as weather-resistant insulating material.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: October 20, 2020
    Assignee: Covestro Deutschland AG
    Inventors: Lutz Böhnke, Dirk Achten
  • Publication number: 20200040123
    Abstract: The present invention relates to specific translucent, preferably lightfast, polyurethane foams which have a high light transmission and are therefore suitable e.g. for producing translucent polyurethane foams or multilayer composite elements, for example for producing structural components, more particularly as roof elements such as strip lights and light domes, as wall elements such as a panel, in vehicles, in lamps, as furniture, as partitions and in sanitary facilities.
    Type: Application
    Filed: March 28, 2018
    Publication date: February 6, 2020
    Inventors: Lutz BÖHNKE, Dirk ACHTEN, Robert MALEIKA
  • Publication number: 20190233574
    Abstract: The present invention relates to a polyisocyanurate foam obtainable by reacting a mixture in the presence of a catalyst and optionally an initiator, comprising or consisting of: A) a polyisocyanate component comprising at least one aliphatic polyisocyanate; B) a component reactive to isocyanate comprising at least one polyol and/or an alcohol and also optionally an amine; C) at least one blowing agent; D) at least one foam stabilizer and E) optionally at least one additive, characterized in that the mixture, upon accompanying use of an isocyanate-reactive component (polyol, alcohol, amine), has an index of at least 200. The invention further relates to a process for producing such a foam and use thereof as an insulating material, as a construction element, as facade insulation, as reactor insulation, as battery insulation, as superheated steam insulation, as insulation for a still, or as weather-resistant insulating material.
    Type: Application
    Filed: July 12, 2017
    Publication date: August 1, 2019
    Inventors: Lutz BÖHNKE, Dirk ACHTEN
  • Patent number: 9777104
    Abstract: The present invention relates to predominantly (>50 vol %) open-cell (to DIN ISO 4590-5 86), cold-deformable, rigid polyurethane foams which possess high acoustic absorption and a uniform cell structure and which are suitable for producing automotive interior trim, more particularly roof linings and pillar trim.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: October 3, 2017
    Assignee: Covestro Deutschland AG
    Inventors: Lutz Boehnke, Joern Beaujean, Rolf Albach, Jun Li, Ling Shi
  • Publication number: 20160046758
    Abstract: The present invention relates to predominantly (>50 vol %) open-cell (to DIN ISO 4590-5 86), cold-deformable, rigid polyurethane foams which possess high acoustic absorption and a uniform cell structure and which are suitable for producing automotive interior trim, more particularly roof linings and pillar trim.
    Type: Application
    Filed: March 25, 2013
    Publication date: February 18, 2016
    Inventors: Lutz BOEHNKE, Joern BEAUJEAN, Rolf ALBACH, Jun LI, Ling SHI