Patents by Inventor Klaus Behrendt

Klaus Behrendt 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).

  • Publication number: 20230251156
    Abstract: The present disclosure relates to a piston diaphragm seal for transmitting a pressure of a medium to a pressure-measuring sensor a base body having a recess and a bore which is connected to the recess. The recess and the bore can be filled with a pressure transfer medium. A piston is arranged in the recess and can be moved within a predetermined region in the recess. A surface of the piston facing the medium can be loaded with the pressure of the medium, wherein the piston is separated by at least two sealing elements from the medium and the pressure transfer medium. A cavity is arranged in the piston between the at least two sealing elements. An attachment region is provided for connecting the piston diaphragm seal to the pressure-measuring sensor. A monitoring unit is designed to determine and/or monitor entry of medium and/or pressure transfer medium into the cavity.
    Type: Application
    Filed: February 6, 2023
    Publication date: August 10, 2023
    Inventors: Dietmar Leuthner, Klaus Behrendt, Jacobo Carrasco Heres, Peter Probst, Alfred Schmelzle
  • Publication number: 20210324239
    Abstract: The invention relates to amorphous poly-alpha-olefins, which are characterized in that said amorphous poly-alpha-olefins have a viscosity at 190° C. of less than 5000 mPas, a molar mass distribution (Mw/Mn) of 3 to 8, a quotient Mz/Mw of less than or equal to 3.0 and a quotient Mz/Mn of less than 21.0. The invention further relates to a method for producing degraded amorphous poly-alpha-olefins, in particular the amorphous poly-alpha-olefins according to the invention, and to the use of the amorphous polyalpha-olefins according to the invention or produced according to the invention in hot-melt adhesive compositions.
    Type: Application
    Filed: September 3, 2019
    Publication date: October 21, 2021
    Applicant: Evonik Operations GmbH
    Inventors: Sebastian Babik, Steffen Cepa, André Ebbers, Klaus Behrendt, Jessica Vieth, Katharina Rawert, Gabriele Wrobel
  • Patent number: 9096774
    Abstract: The invention relates to heat-curing powder-lacquer compositions exhibiting a matte surface after curing of the coating, as well as to a simple method for production of the same.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: August 4, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Werner Grenda, Emmanouil Spyrou, Thomas Weihrauch, Christoph Lammers, Holger Loesch, Klaus Behrendt
  • Patent number: 8962885
    Abstract: The invention relates to new ?-hydroxyalkylamides, to a method for production of same and to the use of same.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: February 24, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Werner Grenda, Emmanouil Spyrou, Thomas Weihrauch, Christoph Lammers, Holger Loesch, Klaus Behrendt
  • Patent number: 8907130
    Abstract: The invention relates to novel ?-hydroxyalkylamides, to a method for their production and to the use thereof.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: December 9, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Werner Grenda, Emmanouil Spyrou, Thomas Weihrauch, Christoph Lammers, Holger Loesch, Klaus Behrendt
  • Publication number: 20140316056
    Abstract: The invention relates to heat-curing powder-lacquer compositions exhibiting a matte surface after curing of the coating, as well as to a simple method for production of the same.
    Type: Application
    Filed: May 28, 2013
    Publication date: October 23, 2014
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Werner GRENDA, Emmanouil SPYROU, Thomas Weihrauch, Christoph Lammers, Holger Loesch, Klaus Behrendt
  • Patent number: 8524837
    Abstract: The invention relates to heat-curing powder-lacquer compositions exhibiting a matte surface after curing of the coating, as well as to a simple method for production of the same.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: September 3, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Werner Grenda, Emmanouil Spyrou, Thomas Weihrauch, Christoph Lammers, Holger Loesch, Klaus Behrendt
  • Publication number: 20130041103
    Abstract: The invention relates to heat-curable powder coating compositions, which after the coating has cured result in a matt surface and to a simple method for producing same
    Type: Application
    Filed: March 10, 2011
    Publication date: February 14, 2013
    Applicant: Evonik Degussa GmbH
    Inventors: Werner Grenda, Emmanouil Spyrou, Thomas Weihrauch, Christoph Lammers, Holger Loesch, Klaus Behrendt
  • Publication number: 20130006016
    Abstract: The invention relates to novel ?-hydroxyalkylamides, to a method for their production and to the use thereof.
    Type: Application
    Filed: March 10, 2011
    Publication date: January 3, 2013
    Applicant: Evonik Degussa GmbH
    Inventors: Werner Grenda, Emmanouil Spyrou, Thomas Weihrauch, Christoph Lammers, Holger Loesch, Klaus Behrendt
  • Publication number: 20120208956
    Abstract: The invention relates to new ?-hydroxyalkylamides, to a method for production of same and to the use of same.
    Type: Application
    Filed: March 10, 2011
    Publication date: August 16, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Werner Grenda, Emmanouil Spyrou, Thomas Weihrauch, Christoph Lammers, Holger Loesch, Klaus Behrendt
  • Publication number: 20110288202
    Abstract: The invention relates to heat-curing powder-lacquer compositions exhibiting a matte surface after curing of the coating, as well as to a simple method for production of the same.
    Type: Application
    Filed: March 10, 2011
    Publication date: November 24, 2011
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Werner Grenda, Emmanouil Spyrou, Thomas Weihrauch, Christoph Lammers, Holger Loesch, Klaus Behrendt
  • Publication number: 20080194787
    Abstract: The invention relates to low-viscosity polyaddition compounds containing uretdione groups, preparation process, and use.
    Type: Application
    Filed: January 27, 2006
    Publication date: August 14, 2008
    Inventors: Volker Weiss, Thomas Weihrauch, Werner Grenda, Silvia Herda, Klaus Behrendt
  • Patent number: 7129313
    Abstract: The invention relates to a process for the solvent-free, continuous preparation of polyureas by reacting at least one isocyanate and/or isocyanurate having at least two NCO groups with at least one diamine and/or polyamine in an extruder, intensive kneader, intensive mixer or static mixer by thorough mixing and rapid reaction by briefly heating and subsequent cooling to isolate the end product.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: October 31, 2006
    Assignee: Degussa AG
    Inventors: Joern Volker Weiss, Thomas Weihrauch, Werner Grenda, Silvia Herda, Klaus Behrendt
  • Publication number: 20030212238
    Abstract: The invention relates to a process for the solvent-free, continuous preparation of polyureas by reacting at least one isocyanate and/or isocyanurate having at least two NCO groups with at least one diamine and/or polyamine in an extruder, intensive kneader, intensive mixer or static mixer by thorough mixing and rapid reaction by briefly heating and subsequent cooling to isolate the end product.
    Type: Application
    Filed: November 29, 2002
    Publication date: November 13, 2003
    Applicant: DEGUSSA AG
    Inventors: Joern Volker Weiss, Thomas Weihrauch, Werner Grenda, Silvia Herda, Klaus Behrendt
  • Publication number: 20030212207
    Abstract: The invention relates to a process for the solvent-free continuous preparation of a polymeric composition comprising a polymer and a thermoset, where the thermoset is prepared in the polymer matrix from its corresponding starting components, by reaction in an extruder, intensive kneader, intensive mixer, or static mixer, through intensive mixing and rapid reaction by briefly heating and with subsequent cooling to isolate the final product.
    Type: Application
    Filed: November 29, 2002
    Publication date: November 13, 2003
    Applicant: DE GUSSA AG
    Inventors: Joern Volker Weiss, Thomas Weihrauch, Werner Grenda, Silvia Herda, Klaus Behrendt
  • Patent number: 6479613
    Abstract: The invention relates to a process for the preparation of polyaddition products containing uretdione groups, prepared from a polyisocyanate-uretdione having at least two free isocyanate groups, diols and, if desired, monoalcohols or monoamines, in which the polyaddition products containing uretdione groups are prepared by a solvent-free and continuous procedure which is carried out in an intensive kneading apparatus/extruder. The invention also relates to the use of polyaddition products containing uretdione groups for PUR powder coatings and for solvent-containing, one-component stoving enamels.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: November 12, 2002
    Assignee: Dugussa-Huels Aktiengesellschaft
    Inventors: Rainer Gras, Siegfried Brandt, Klaus Behrendt, Silvia Herda
  • Publication number: 20020062000
    Abstract: The invention relates to a process for the preparation of polyaddition products containing uretdione groups, prepared from a polyisocyanate-uretdione having at least two free isocyanate groups, diols and, if desired, monoalcohols or monoamines, in which the polyaddition products containing uretdione groups are prepared by a solvent-free and continuous procedure which is carried out in an intensive kneading apparatus/extruder.
    Type: Application
    Filed: June 20, 1996
    Publication date: May 23, 2002
    Inventors: RAINER GRAS, SIEGFRIED BRANDT, KLAUS BEHRENDT, SILVIA HERDA
  • Patent number: 6194613
    Abstract: Process for the continuous preparation of hydroxyalkylamides Process for the continuous preparation of hydroxyalkylamides from carboxylic esters and alkanolamines, wherein the reaction of the starting materials is carried out in an extruder or intensive mixer by intensive mixing and brief reaction with supply of heat and simultaneous removal of the alcohol formed and the final product is then isolated.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: February 27, 2001
    Assignee: Creanova Spezialchemie GmbH
    Inventors: Thomas Weihrauch, Klaus Behrendt, Silvia Herda, Rainer Elm