Patents by Inventor Harald Rögl

Harald Rögl 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: 12116444
    Abstract: The present invention provides compounds, especially polymeric compounds, having at least one imidazole and/or imidazolium structural unit, a process for preparation thereof and for the use thereof.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: October 15, 2024
    Assignee: Evonik Operations GmbH
    Inventors: Oliver Conradi, Artjom Maljusch, Harald Rögl
  • Publication number: 20240301153
    Abstract: The present invention provides (polymeric) compounds and a process for preparation thereof. Intended use is in field of electrochemistry. Anion-conducting properties of disclosed compounds making this material suitable for preparing anion-conducting membranes. It is object of present invention to provide an easy-to-prepare material with proper anion-conducting properties and controlled swelling. Inexpensive precursors shall be used for synthesis.
    Type: Application
    Filed: January 10, 2022
    Publication date: September 12, 2024
    Inventors: Artjom Maljusch, Oliver Conradi, Harald Rögl
  • Publication number: 20240166811
    Abstract: The present invention provides compounds, especially polymeric compounds, a process for preparation thereof and for the use of these compounds. Intended use is in the field of electro-chemistry. Anion-conducting properties of disclosed compounds making this material suitable for the preparation of anion-conducting membranes. The object of the present invention is therefore to provide material having an ionic conductivity that is stable over long period of time. This object is solved by compounds containing at least one unit of the formula (I) wherein X being a ketone or sulfone group, wherein Z being a structure element comprising at least one tertiary carbon atom and at least one aromatic 6-ring directly bonded to one of the oxygen atoms, and wherein Y being a structure element comprising at least one nitrogen atom with a positive charge and Y being bonded to said tertiary carbon atom of Z.
    Type: Application
    Filed: March 8, 2022
    Publication date: May 23, 2024
    Inventors: Artjom Maljusch, Oliver Conradi, Harald Rögl
  • Patent number: 11724978
    Abstract: In a method for oxidizing 1,1-bis-(3,4-dimethylphenyl)-alkane with nitric acid in a pressure vessel to produce 3,3?,4,4?-benzophenone tetracarboxylic acid with concurrent formation of nitric oxide, passing nitric oxide from the pressure vessel into an absorption vessel and reacting nitric oxide in the absorption vessel with molecular oxygen and water to produce an aqueous nitric acid solution prevents discharge of nitric oxide, avoids the risk of oxygen inhibiting the nitric acid oxidation and reduces nitric acid consumption when the nitric acid from the absorption vessel is used for oxidizing the 1,1-bis-(3,4-dimethylphenyl)-alkane.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: August 15, 2023
    Assignee: EVONIK FIBRES GMBH
    Inventor: Harald Rögl
  • Publication number: 20220243012
    Abstract: The present invention provides compounds, especially polymeric compounds, having preferably at least one spiro or piperidine structural unit, a process for preparation thereof and the use thereof as anion conducting membrane.
    Type: Application
    Filed: July 16, 2020
    Publication date: August 4, 2022
    Inventors: Oliver Conradi, Artjom Maljusch, Harald Rögl, Gianluigi Luppi
  • Publication number: 20210179527
    Abstract: In a method for oxidizing 1,1-bis-(3,4-dimethylphenyl)-alkane with nitric acid in a pressure vessel to produce 3,3?,4,4?-benzophenone tetracarboxylic acid with concurrent formation of nitric oxide, passing nitric oxide from the pressure vessel into an absorption vessel and reacting nitric oxide in the absorption vessel with molecular oxygen and water to produce an aqueous nitric acid solution prevents discharge of nitric oxide, avoids the risk of oxygen inhibiting the nitric acid oxidation and reduces nitric acid consumption when the nitric acid from the absorption vessel is used for oxidizing the 1,1-bis-(3,4-dimethylphenyl)-alkane.
    Type: Application
    Filed: December 15, 2020
    Publication date: June 17, 2021
    Inventor: Harald RÖGL
  • Publication number: 20200262959
    Abstract: The present invention provides compounds, especially polymeric compounds, having at least one imidazole and/or imidazolium structural unit, a process for preparation thereof and for the use thereof.
    Type: Application
    Filed: October 16, 2018
    Publication date: August 20, 2020
    Applicant: Evonik Operations GmbH
    Inventors: Oliver Conradi, Artjom Maljusch, Harald Rögl
  • Patent number: 7812099
    Abstract: The invention describes a process for preparing pulverulent polyimide-polyimide block copolymers. The result polyimide-polyimide block copolymers and compounds produced using them can be compressed into moldings by the direct forming method or by the hot compression molding method. Polymeric moldings can be produced therefrom by customary mechanical and thermal machining and forming methods.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: October 12, 2010
    Assignee: Evonik Fibres GmbH
    Inventors: Harald Rögl, Markus Ungerank
  • Patent number: 7687668
    Abstract: Process for preparing 4,4?-difluorobenzophenone, characterized in that, in a first step, fluorobenzene is reacted with formaldehyde under catalysis by organic sulphonic acids to give difluorodiphenylmethane, the product obtained is isolated, and, in a second step, oxidized with nitric acid to give 4,4?-difluorobenzophenone. 4,4?-Difluorobenzophenone (4,4?-DFBP) is the central starting material for the preparation of aromatic polyether ketones.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: March 30, 2010
    Assignee: Evonik Fibres GmbH
    Inventors: Harald Rögl, Markus Ungerank
  • Publication number: 20090177014
    Abstract: Process for preparing 4,4?-difluorobenzophenone, characterized in that, in a first step, fluorobenzene is reacted with formaldehyde under catalysis by organic sulphonic acids to give difluorodiphenylmethane, the product obtained is isolated, and, in a second step, oxidized with nitric acid to give 4,4?-difluorobenzophenone. 4,4?-Difluorobenzophenone (4,4?-DFBP) is the central starting material for the preparation of aromatic polyether ketones.
    Type: Application
    Filed: July 27, 2006
    Publication date: July 9, 2009
    Inventors: Harald Rogl, Markus Ungerank
  • Publication number: 20090143541
    Abstract: The invention describes a process for preparing pulverulent polyimide-polyimide block copolymers. The result polyimide-polyimide block copolymers and compounds produced using them can be compressed into mouldings by the direct forming method or by the hot compression moulding method. Polymeric mouldings can be produced therefrom by customary mechanical and thermal machining and forming methods.
    Type: Application
    Filed: July 13, 2006
    Publication date: June 4, 2009
    Inventors: Harald Rögl, Markus Ungerank