Patents by Inventor Gerhard Langstein

Gerhard Langstein 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: 11905177
    Abstract: The invention relates to a storage medium and to a method for using a storage medium based on ionic compounds, which can reversibly absorb and store chlorine and chlorine from process gases, and which can release the same again by changing the ambient conditions, wherein the storage medium can be reused for this task after discharge.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: February 20, 2024
    Assignee: COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
    Inventors: Maxime Paven, Yuliya Schiesser, Rainer Weber, Gerhard Langstein, Vinh Trieu, Sebastian Hasenstab-Riedel, Nico Schwarze, Simon Steinhauer
  • Publication number: 20210107865
    Abstract: The invention relates to aliphatic amines, methods for preparing the same and use thereof, particularly their use in curing agents. The method for preparing an aliphatic amine comprises reacting a reaction composition comprising an amino acid and an amine compound capable of dissolving the amino acid to obtain the aliphatic amine, wherein the content ratio of the amino acid to the amine compound is 1:10000-1:1, preferably 1:100-1:2, most preferably 1:10-1:2. The method for preparing an aliphatic amine provided by the present invention has a high reaction rate, a high conversion rate of the amino acid, a high purity of the aliphatic product, a long catalyst life, and easy purification of the reaction product.
    Type: Application
    Filed: March 28, 2017
    Publication date: April 15, 2021
    Inventors: Ruijing GUO, Mingyan MA, Jen-Chieh LIN, Niklas MEINE, Gernot JAEGER, Gerhard LANGSTEIN, Christoph EGGERT
  • Publication number: 20210087057
    Abstract: The invention relates to a storage medium and to a method for using a storage medium based on ionic compounds, which can reversibly absorb and store chlorine and chlorine from process gases, and which can release the same again by changing the ambient conditions, wherein the storage medium can be reused for this task after discharge.
    Type: Application
    Filed: May 3, 2019
    Publication date: March 25, 2021
    Inventors: Maxime PAVEN, Yuliya SCHIESSER, Rainer WEBER, Gerhard LANGSTEIN, Vinh TRIEU, Sebastian HASENSTAB-BIEDEL, Nico SCHWARZE, Simon STEINHAUER
  • Publication number: 20200306723
    Abstract: The invention relates to a novel storage material on the basis of nanoporous silicon dioxide particles for the adsorption of chlorine, to the use of said storage material for chlorine recovery and for chlorine liquefaction for the purpose of storing, transport and cleaning.
    Type: Application
    Filed: June 19, 2017
    Publication date: October 1, 2020
    Inventors: Vinh TRIEU, Gerhard LANGSTEIN, Paul HEINZ, Rainer WEBER, Yuliya SCHIEßER, Knud WERNER, Verena HAVERKAMP, Sebastian POLARZ, Andreas SCHACHTSCHNEIDER
  • Patent number: 8354028
    Abstract: A method for separating electrolyte-containing water from an organic phase by means of permeation on a hydrophobic separating means. The permeated organic solution is substantially depleted in water and the retained water is enriched with electrolytes.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: January 15, 2013
    Assignee: Bayer Material Science AG
    Inventors: Helmut Meyer, Guido Naberfeld, Johann Rechner, Rafael Warsitz, Michael Traving, Werner Bäcker, Thomas Elsner, Arno Nennemann, Stephan Bahnmuler, Gerhard Langstein, Julia Hitzbleck, Patrick Theato, Daniel Kessler, Daniel-Gordon Duff, Sascha Plug
  • Publication number: 20090030169
    Abstract: The present invention relates to a process for producing polymers comprising repeating units derived from at least one isoolefin monomer, at least one multiolefin monomer and optionally further copolymerizable monomers in the presence of at least one organic nitro compound and AlCl3/water wherein the process is conducted in the absence of compounds selected from the group consisting of vanadium compounds, zirconium halogenid, hafnium halogenides. Preferably the polymers have a multiolefin content of greater than 2.5 mol %, and a molecular weight Mw of greater than 240 kg/mol.
    Type: Application
    Filed: July 9, 2007
    Publication date: January 29, 2009
    Inventors: R. Resendes, Rudolf Casper, Rotraud Casper, William E. App, Gerhard Langstein, Martin Bohnenpoll, Gabor Kaszas, Stephan Glander
  • Publication number: 20090018289
    Abstract: The present invention relates to a continuous process for producing polymers at conversions ranging from 50% to 95% having a Mooney viscosity of at least 25 Mooney-units and a gel content of less than 15 wt. % containing repeating units derived from at least one isoolefin monomer, more than 4.1 mol % of repeating units derived from at least one multiolefin monomer and optionally further copolymerizable monomers in the presence of AlCl3 and a suitable proton source (e.g. water) or cationogen and at least one multiolefin cross-linking agent wherein the process is conducted in the absence of transition metal compounds and organic nitro compounds.
    Type: Application
    Filed: September 23, 2008
    Publication date: January 15, 2009
    Applicant: LANXESS INC.
    Inventors: R. Resendes, Gabor Kaszas, Mark J. Drewitt, Stephan Glander, Gerhard Langstein, Martin Bohnenpoll
  • Patent number: 7446151
    Abstract: The present invention relates to a continuous process for producing polymers at conversions ranging from 50% to 95% having a Mooney viscosity of at least 25 Mooney-units and a gel content of less than 15 wt. % containing repeating units derived from at least one isoolefin monomer, more than 4.1 mol % of repeating units derived from at least one multiolefin monomer and optionally further copolymerizable monomers in the presence of AlCl3 and a suitable proton source (e.g. water) or cationogen and at least one multiolefin cross-linking agent wherein the process is conducted in the absence of transition metal compounds and organic nitro compounds.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: November 4, 2008
    Assignee: Lanxess, Inc.
    Inventors: Rui Resendes, Gabor Kaszas, Mark J. Drewitt, Stephan Glander, Gerhard Langstein, Martin Bohnenpoll
  • Publication number: 20080177098
    Abstract: Process for the preparation of nanoscale metal-organic frameworks, and porous frameworks synthesized from at least one metal ion and at least one at least bidentate organic compound and a monodentate growth inhibitor.
    Type: Application
    Filed: October 11, 2007
    Publication date: July 24, 2008
    Inventors: Stefan Bahnmuller, Gerhard Langstein, Roland A. Fischer, Stephen Hermes
  • Publication number: 20070299229
    Abstract: The present invention relates to a continuous process for producing polymers at conversions ranging from 50% to 95% having a Mooney viscosity of at least 25 Mooney-units and a gel content of less than 15 wt. % containing repeating units derived from at least one isoolefm monomer, more than 4.1 mol% of repeating units derived from at least one multiolefm monomer and optionally further copolymerizable monomers in the presence of AlCl3 and a suitable proton source (e.g. water) or cationogen and at least one multiolefin cross-linking agent wherein the process is conducted in the absence of transition metal compounds and organic nitro compounds.
    Type: Application
    Filed: August 31, 2007
    Publication date: December 27, 2007
    Inventors: R. Resendes, Gabor Kaszas, Mark Drewitt, Stephan Glander, Gerhard Langstein, Martin Bohnenpoll
  • Patent number: 7282548
    Abstract: The present invention relates to a continuous process for producing polymers at conversions ranging from 50% to 95% having a Mooney viscosity of at least 25 Mooney-units and a gel content of less than 15 wt. % containing repeating units derived from at least one isoolefin monomer, more than 4.1 mol % of repeating units derived from at least one multiolefin monomer and optionally further copolymerizable monomers in the presence of AlCl3 and a suitable proton source (e.g. water) or cationogen and at least one multiolefin cross-linking agent wherein the process is conducted in the absence of transition metal compounds and organic nitro compounds.
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: October 16, 2007
    Assignee: Lanxess Inc.
    Inventors: R. Resendes, Gabor Kaszas, Mark J. Drewitt, Stephan Glander, Gerhard Langstein, Martin Bohnenpoll
  • Patent number: 7256244
    Abstract: The present invention relates to a process for producing polymers comprising repeating units derived from at least one isoolefin monomer, at least one multiolefin monomer and optionally further copolymerization monomers in the presence of at least one organic nitro compound and AlCl3/water wherein the process is conducted in the absence of compounds selected from the group consisting of vanadium compounds, zirconium halogenid, and hafnium hallogenides.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: August 14, 2007
    Assignee: Lanxess Inc.
    Inventors: R. Resendes, Rotraud Casper, legal representative, William E. App, Gerhard Langstein, Martin Bohnenpoll, Gabor Kaszas, Stephan Glander, Rudolf Casper, deceased
  • Publication number: 20050196627
    Abstract: The present invention relates to compositions containing defined sol-gel materials as anti-stick coatings and to apparatus for preparing and processing polymers, such as rubbers, characterized in that they possess such an anti-stick coating containing a hydrophobic sol-gel material.
    Type: Application
    Filed: April 6, 2005
    Publication date: September 8, 2005
    Inventors: Michael Mager, Christian Mahner, Gerhard Langstein
  • Patent number: 6846885
    Abstract: The present invention provides a novel process for the preparation of isoolefin copolymers in the presence of zirconium halides or hafnium halides or mixtures thereof and organic nitro compounds, especially for the preparation of butyl rubbers, as well as isoolefin copolymers composed of isobutene, isoprene and, optionally, further monomers.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: January 25, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Langstein, Martin Bohnenpoll
  • Publication number: 20040220328
    Abstract: The present invention relates to a process for producing polymers comprising repeating units derived from at least one isoolefin monomer, at least one multiolefin monomer and optionally further copolymerizable monomers in the presence of at least one organic nitro compound and AlCl3/water wherein the process is conducted in the absence of compounds selected from the group consisting of vanadium compounds, zirconium halogenid, hafnium halogenides.
    Type: Application
    Filed: December 3, 2003
    Publication date: November 4, 2004
    Inventors: R. Resendes, Rotraud Casper, Rudolf Casper, William E. App, Gerhard Langstein, Martin Bohnenpoll, Gabor Kaszas, Stephan Glander
  • Publication number: 20040116627
    Abstract: The present invention provides a novel process for the preparation of isoolefin copolymers in the presence of zirconium halides and/or hafnium halides and organic acid halides, in particular for the preparation of butyl rubbers, as well as isoolefin copolymers constructed of isobutene, isoprene and optionally further monomers.
    Type: Application
    Filed: November 17, 2003
    Publication date: June 17, 2004
    Inventors: Gerhard Langstein, Jurgen Ismeier, Martin Bohnenpoll, Hans Ludwig Krauss, Rui Resendes
  • Patent number: 6677421
    Abstract: The present invention provides a novel process for the preparation of isoolefin copolymers in the presence of zirconium halides and/or hafnium halides and organic acid halides, in particular for the preparation of butyl rubbers, as well as isoolefin copolymers constructed of isobutene, isoprene and optionally further monomers.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: January 13, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Langstein, Jürgen Ismeier, Martin Bohnenpoll, Hans Ludwig Krauss, Rui Resendes
  • Publication number: 20030199647
    Abstract: The present invention provides a novel process for the preparation of isoolefin copolymers in the presence of zirconium halides or hafnium halides or mixtures thereof and organic nitro compounds, especially for the preparation of butyl rubbers, as well as isoolefin copolymers composed of isobutene, isoprene and, optionally, further monomers.
    Type: Application
    Filed: March 21, 2003
    Publication date: October 23, 2003
    Inventors: Gerhard Langstein, Martin Bohnenpoll
  • Publication number: 20030198739
    Abstract: The present invention relates to compositions containing defined sol-gel materials as anti-stick coatings and to apparatus for preparing and processing polymers, such as rubbers, characterized in that they possess such an anti-stick coating containing a hydrophobic sol-gel material.
    Type: Application
    Filed: April 15, 2003
    Publication date: October 23, 2003
    Inventors: Michael Mager, Christian Mahner, Gerhard Langstein
  • Patent number: 6562916
    Abstract: The present invention provides a novel process for the preparation of isoolefin copolymers in the presence of zirconium halides or hafnium halides or mixtures thereof and organic nitro compounds, especially for the preparation of butyl rubbers, as well as isoolefin copolymers composed of isobutene, isoprene and, optionally, further monomers.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: May 13, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Langstein, Martin Bohnenpoll