Patents by Inventor Christian OHMS

Christian OHMS 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: 20240343893
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer. The polyethylene polymer has a narrow molecular weight distribution. Polymer articles made in accordance with the present disclosure have enhanced strength properties. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices.
    Type: Application
    Filed: October 12, 2023
    Publication date: October 17, 2024
    Inventors: Christian Ohm, Arvind Yadav
  • Patent number: 12100859
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and one or more shutdown reducing additives. The shutdown reducing additives decrease the shutdown temperature of polymer articles made from the polymer composition. In one embodiment, the polymer composition is used to form a porous membrane for use of a battery separator.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: September 24, 2024
    Assignee: Celanese International Corporation
    Inventors: Christian Ohm, Kirsten Markgraf
  • Publication number: 20240199850
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and one or more strength enhancing additives. Polymer articles made in accordance with the present disclosure have enhanced strength properties. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices.
    Type: Application
    Filed: February 28, 2024
    Publication date: June 20, 2024
    Inventors: Christian Ohm, Fangfang Tao, Man Cheng Li
  • Publication number: 20240166830
    Abstract: A hydrophilic porous polymer film is disclosed that is particularly well-suited for use in an electrolysis cell producing hydrogen. The porous polymer film contains one or more high-density polyethylene polymers in combination with one or more hydrophilic additives. The porous film can be formed through a gel extrusion process or through sintering. Extremely thin films can be produced that have desired permeability characteristics, hydrophilicity characteristics, and mechanical characteristics necessary for use in the cell.
    Type: Application
    Filed: November 2, 2023
    Publication date: May 23, 2024
    Inventors: Christian Ohm, David Ditter, Ludger Czyborra, Audrey Gensous
  • Patent number: 11976177
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and one or more strength enhancing additives. Polymer articles made in accordance with the present disclosure have enhanced strength properties. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: May 7, 2024
    Assignee: CELANESE INTERNATIONAL CORPORATION
    Inventors: Christian Ohm, Fangfang Tao, Man Cheng Li
  • Publication number: 20240043658
    Abstract: A polymer composition is disclosed that is particularly formulated for producing gel extruded articles containing a high density polyethylene polymer. In one embodiment, the polymer composition is used to produce a porous membrane or film well suited for use as an ion separator in an electronic device, such as a battery. The polymer composition contains a molecular weight retention package that preserves the molecular weight of the polyethylene polymer during extrusion.
    Type: Application
    Filed: July 25, 2023
    Publication date: February 8, 2024
    Inventors: Christian Ohm, David Ditter
  • Publication number: 20240034865
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer. The polyethylene particles are particularly selected so that the particles rapidly form a homogeneous gel-like material when combined with the plasticizer during gel processing. In one embodiment, the polyethylene used to produce the particles has a relatively low bulk density. Alternatively or in addition, the particles can have a carefully controlled particle size distribution. Polymer articles such as fibers and films can be produced having little to no imperfections.
    Type: Application
    Filed: October 6, 2023
    Publication date: February 1, 2024
    Inventors: Christian Ohm, Rainer Walkenhorst, Patrick Scheibe
  • Publication number: 20230383105
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and one or more surface tension reducing techniques. In one aspect, the surface tension reducing technique includes adding a filler or chemical component to the polyethylene polymer for increasing wettability. Alternatively, the surface tension reducing technique can be a surface treatment, such as a plasma treatment. Polymer articles made in accordance with the present disclosure can have dramatically increased wettability properties. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices.
    Type: Application
    Filed: October 28, 2020
    Publication date: November 30, 2023
    Inventors: Christian Ohm, Kirsten Markgraf, Argiri Tsami-Schullte, Fangfang Tao
  • Patent number: 11814508
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer. The polyethylene polymer has a narrow molecular weight distribution. Polymer articles made in accordance with the present disclosure have enhanced strength properties. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: November 14, 2023
    Assignee: CELANESE INTERNATIONAL CORPORATION
    Inventors: Christian Ohm, Arvind Yadav
  • Patent number: 11780995
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer. The polyethylene particles are particularly selected so that the particles rapidly form a homogeneous gel-like material when combined with the plasticizer during gel processing. In one embodiment, the polyethylene used to produce the particles has a relatively low bulk density. Alternatively or in addition, the particles can have a carefully controlled particle size distribution. Polymer articles such as fibers and films can be produced having little to no imperfections.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: October 10, 2023
    Assignee: Celanese Sales Germany GmbH
    Inventors: Christian Ohm, Rainer Walkenhorst, Patrick Scheibe
  • Publication number: 20230303811
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains at least three different polyethylene polymers, namely a lower molecular weight polyethylene polymer, a mid-range molecular weight polyethylene polymer, and a high molecular weight polyethylene polymer. Combining the different polyethylene polymers in different ratios can optimize not only mechanical properties but improve processing.
    Type: Application
    Filed: March 22, 2023
    Publication date: September 28, 2023
    Inventors: Fangfang Tao, Christian Ohm, Yingying Sun, David Ditter
  • Publication number: 20220213278
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and an acid scavenger. In accordance with the present disclosure, the acid scavenger is an inorganic compound that is insoluble in the plasticizer and/or any extractions solvents used during the process. In one embodiment, the acid scavenger is a magnesium aluminum hydroxide carbonate.
    Type: Application
    Filed: March 23, 2022
    Publication date: July 7, 2022
    Inventors: Christian Ohm, Dominik Schreiber
  • Patent number: 11292882
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and an acid scavenger. In accordance with the present disclosure, the acid scavenger is an inorganic compound that is insoluble in the plasticizer and/or any extractions solvents used during the process. In one embodiment, the acid scavenger is a magnesium aluminum hydroxide carbonate.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: April 5, 2022
    Assignee: Celanese Sales Germany GmbH
    Inventors: Christian Ohm, Dominik Schreiber
  • Publication number: 20220056249
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer. The polyethylene polymer has a narrow molecular weight distribution. Polymer articles made in accordance with the present disclosure have enhanced strength properties. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices.
    Type: Application
    Filed: August 24, 2021
    Publication date: February 24, 2022
    Inventors: Christian Ohm, Arvind Yadav
  • Publication number: 20220002520
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and one or more strength enhancing additives. Polymer articles made in accordance with the present disclosure have enhanced strength properties. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 6, 2022
    Inventors: Christian Ohm, Fangfang Tao, Man Cheng Li
  • Publication number: 20210351476
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and one or more shutdown reducing additives. The shutdown reducing additives decrease the shutdown temperature of polymer articles made from the polymer composition. In one embodiment, the polymer composition is used to form a porous membrane for use of a battery separator.
    Type: Application
    Filed: April 30, 2021
    Publication date: November 11, 2021
    Inventors: Christian Ohm, Kirsten Markgraf
  • Publication number: 20210340292
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene copolymer particles combined with a plasticizer. The polyethylene copolymer can be a high density polyethylene copolymer made from ethylene and one or more comonomers. The comonomers are incorporated into the polymer for reducing the shutdown temperature of the polymer composition and of polymer articles made from the polymer composition. In one embodiment, the polymer composition is used to form a porous membrane for use of a battery separator.
    Type: Application
    Filed: April 30, 2021
    Publication date: November 4, 2021
    Inventors: Christian Ohm, Kirsten Markgraf, Arvind Yadav
  • Patent number: 11052843
    Abstract: A battery arrangement for a motor vehicle includes a first electrical energy store, a second electrical energy store, a charging connection, and a supply connection. The arrangement further includes first through seventh switches. The battery arrangement is switchable into four operating states via respective opening and closing of the first through seventh switches.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: July 6, 2021
    Assignee: Daimler AG
    Inventors: Thomas Doersam, Andreas Eichinger, Rainer Falsett, Heiko Hachtel, Frieder Herb, Oliver Lehmann, Christian Ohms
  • Publication number: 20210108056
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer. The polyethylene particles are particularly selected so that the particles rapidly form a homogeneous gel-like material when combined with the plasticizer during gel processing. In one embodiment, the polyethylene used to produce the particles has a relatively low bulk density. Alternatively or in addition, the particles can have a carefully controlled particle size distribution. Polymer articles such as fibers and films can be produced having little to no imperfections.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 15, 2021
    Inventors: Christian Ohm, Rainer Walkenhorst, Patrick Scheibe
  • Patent number: 10875991
    Abstract: A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer. The polyethylene particles are particularly selected so that the particles rapidly form a homogeneous gel-like material when combined with the plasticizer during gel processing. In one embodiment, the polyethylene used to produce the particles has a relatively low bulk density. Alternatively or in addition, the particles can have a carefully controlled particle size distribution. Polymer articles such as fibers and films can be produced having little to no imperfections.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: December 29, 2020
    Assignee: Celanese Sales Germany GmbH
    Inventors: Christian Ohm, Rainer Walkenhorst, Patrick Scheibe