Patents Assigned to Martinswerk GmbH
  • Patent number: 11912584
    Abstract: Alumina products containing a fine particle size component and a coarse particle size component, and with specific particle size characteristics and irregular and non-spherical particle shapes, are disclosed. These alumina products can be used in polymer formulations to produce composites having high isotropic thermal conductivity.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: February 27, 2024
    Assignee: MARTINSWERK GMBH
    Inventors: Bashar Diar Bakerly, Henning Hofius, Martijn Jacobus Marinus Mies, Monika Giesselbach
  • Patent number: 10968111
    Abstract: Alumina products containing a fine particle size component and a coarse particle size component, and with specific particle size characteristics and irregular and non-spherical particle shapes, are disclosed. These alumina products can be used in polymer formulations to produce composites having high isotropic thermal conductivity.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: April 6, 2021
    Assignee: Martinswerk GmbH
    Inventors: Henning Hofius, Bashar Diar Bakerly, Martijn Jacobus Marinus Mies, Monika Giesselbach
  • Patent number: 10414984
    Abstract: Flame retardant compositions containing an inorganic flame retardant, such as aluminum trihydrate or magnesium hydroxide, and a flame retardant synergist containing hydrotalcite and clay at a weight ratio of hydrotalcite:clay ranging from 1:1 to 100:1, are disclosed. These flame retardant compositions can be used to produce polymer formulations with a unique balance of flame retardant, mechanical, and rheological properties.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: September 17, 2019
    Assignee: Martinswerk GmbH
    Inventors: Bashar Diar Bakerly, Martijn Jacobus Marinus Mies, Thomas Olaf Dittmar
  • Patent number: 7959895
    Abstract: Process for the production of aluminum hydroxide flame-retardants by wet-miling and spray-drying an aluminum hydroxide containing slurry.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: June 14, 2011
    Assignee: Martinswerk GmbH
    Inventors: Rene Gabriel Erich Herbiet, Norbert Wilhelm Puetz, Volker Ernst Willi Keller, Winfried Toedt
  • Publication number: 20100301286
    Abstract: The present invention relates to flame retarded thermoset formulations with good viscosity performance.
    Type: Application
    Filed: May 7, 2008
    Publication date: December 2, 2010
    Applicant: Martinswerk GMBH
    Inventors: Thomas Dittmar, Hans Peter Hillekamps, Jens Pfeiffer
  • Publication number: 20100175844
    Abstract: The present invention relates to the use of mill-dried aluminum hydroxide particles (i) as fillers, such as opacity and/or brightness and/or printability improvers, in the production of paper and (ii) in coatings suitable for use on paper and paper products and the paper and paper products having the coating applied thereto.
    Type: Application
    Filed: June 4, 2008
    Publication date: July 15, 2010
    Applicant: MARTINSWERK GMBH
    Inventor: Thomas Maus
  • Publication number: 20100152354
    Abstract: The present invention relates to a process for producing aluminum hydroxide flame retardants from an organic acid containing aluminum hydroxide slurry.
    Type: Application
    Filed: June 21, 2007
    Publication date: June 17, 2010
    Applicant: MARTINSWERK GMBH
    Inventors: Rene Gabriel Erich Herbiet, Winfried Toedt
  • Publication number: 20100061924
    Abstract: Process for the production of aluminum hydroxide flame-retardants by wet-miling and spray-drying an aluminium hydroxide containing slurry.
    Type: Application
    Filed: June 21, 2007
    Publication date: March 11, 2010
    Applicant: Martinswerk GmbH
    Inventors: Rene Gabriel Erich Herbiet, Norbert Wilhelm Puetz, Volker Ernst Willi Keller, Winfried Toedt
  • Publication number: 20090131574
    Abstract: Silane and/or organic titanate and/or organic zirconate coated, mill-dried ATH particles, methods of making them, their use in flame retarded polymer formulations, and molded or extruded articles made from the flame retarded polymer formulations.
    Type: Application
    Filed: June 21, 2007
    Publication date: May 21, 2009
    Applicant: Martinswerk GmbH
    Inventors: Rene Gabriel Erich Herbiet, Winfried Toedt, Wolfgang Hardtke, Hermann Rautz, Christian Alfred Kienesberger, Mario Neuenhaus
  • Publication number: 20090131573
    Abstract: The present invention relates to a novel process for the production of aluminum hydroxide flame retardants having improved thermal stability, the aluminum hydroxide particles produced therefrom, the use of the aluminum hydroxide particles produced therefrom in flame retarded polymer formulations, and molded or extruded articles made from the flame retarded polymer formulations.
    Type: Application
    Filed: June 21, 2007
    Publication date: May 21, 2009
    Applicant: Martinswerk GmbH
    Inventors: Rene Gabriel Erich Herbiet, Volker Ernst Willi Keller, Dagmar Linek, Winfried Toedt
  • Publication number: 20090118410
    Abstract: The present invention relates to a novel process for the production of aluminum hydroxide flame retardants having improved thermal stability, the aluminum hydroxide particles produced therefrom, the use of the aluminum hydroxide particles produced therefrom in flame retarded polymer formulations, and molded or extruded articles made from the flame retarded polymer formulations.
    Type: Application
    Filed: June 21, 2007
    Publication date: May 7, 2009
    Applicant: Martinswerk GmbH
    Inventors: Rene Gabriel Erich Herbiet, Volker Ernst Willi Keller, Dagmar Linek, Winfried Toedt, Norbert Wilhelm Puetz, Ingo Uwe Heim
  • Patent number: 6894101
    Abstract: The invention relates to a cross-linkable, halogen-free, flame-resistant plastic mixture which can especially be used, in a cross-linkable state, for coating cables. The inventive plastic mixture comprises the following plastic components: (a) 3 to 50 weight parts (phr) of at least one ethylene copolymer from the group comprising ethylene vinyl acetates, ethylene ethyl acrylates, ethylene methyl acrylates or ethylene butyl acrylates, (b) 30 to 96 weight parts (phr) of a high-density polyolefin, especially a HDPE (High Density Polyethylene) having a density of >0.94 g/cm3, and (c) 1 to 20 weight parts (phr) of a polyolefin which has been grafted with a derivative of an unsaturated carboxylic acid, especially HDPE-g carboxylic acid derivatives. Components (a) to (c) together produce a total of 100 weight parts (phr) of plastic. The mixture also comprises the following components: (d) 40 to 250 weight parts (phr) of a filling material, and (c) 0.1 to 15 weight parts (phr) of a stabilizer system.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: May 17, 2005
    Assignee: Martinswerk GmbH
    Inventors: Heinz Paul, René Herbiet, Hans Jürgen Eichler, Guido Jodocy, Winifried Toedt
  • Patent number: 6280839
    Abstract: A nonhygroscopic thermally stable aluminum hydroxide, which is particularly useful for the preparation of thermally stable and fire retardant laminates for printed circuit boards.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: August 28, 2001
    Assignee: Alusuisse Martinswerk GmbH
    Inventors: Neil Brown, Michael Aggleton
  • Patent number: 6171651
    Abstract: A process for the coating of glass microspheres with an aluminium hydroxide, which involves the hydrothermal treatment of a suspension of complexed Al3+-ions with glass microspheres. The aluminium hydroxide coated glass microspheres can be applied in the production of light weight glass-reinforced plastic materials, e.g., for use in mass transportation.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: January 9, 2001
    Assignee: Martinswerk GmbH fur Chemische und Metallurgische Produktion
    Inventor: Neil Brown
  • Patent number: 5827906
    Abstract: A filler composition for thermoplastic olefins or thermoplastic elastomers which comprises a halogen-free, flame-inhibiting filler which has been surface-treated with fatty acid derivatives and optionally a siloxane derivative.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: October 27, 1998
    Assignee: Martinswerk GmbH Fur Chemische und Metallurgische Produktion
    Inventors: Heinz-Dieter Metzemacher, Rainer Seeling