Patents Assigned to Martinswerk GmbH
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Patent number: 11912584Abstract: 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: GrantFiled: February 24, 2021Date of Patent: February 27, 2024Assignee: MARTINSWERK GMBHInventors: Bashar Diar Bakerly, Henning Hofius, Martijn Jacobus Marinus Mies, Monika Giesselbach
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Patent number: 10968111Abstract: 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: GrantFiled: May 15, 2017Date of Patent: April 6, 2021Assignee: Martinswerk GmbHInventors: Henning Hofius, Bashar Diar Bakerly, Martijn Jacobus Marinus Mies, Monika Giesselbach
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Patent number: 10414984Abstract: 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: GrantFiled: October 16, 2017Date of Patent: September 17, 2019Assignee: Martinswerk GmbHInventors: Bashar Diar Bakerly, Martijn Jacobus Marinus Mies, Thomas Olaf Dittmar
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Patent number: 7959895Abstract: Process for the production of aluminum hydroxide flame-retardants by wet-miling and spray-drying an aluminum hydroxide containing slurry.Type: GrantFiled: June 21, 2007Date of Patent: June 14, 2011Assignee: Martinswerk GmbHInventors: Rene Gabriel Erich Herbiet, Norbert Wilhelm Puetz, Volker Ernst Willi Keller, Winfried Toedt
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Publication number: 20100301286Abstract: The present invention relates to flame retarded thermoset formulations with good viscosity performance.Type: ApplicationFiled: May 7, 2008Publication date: December 2, 2010Applicant: Martinswerk GMBHInventors: Thomas Dittmar, Hans Peter Hillekamps, Jens Pfeiffer
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Publication number: 20100175844Abstract: 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: ApplicationFiled: June 4, 2008Publication date: July 15, 2010Applicant: MARTINSWERK GMBHInventor: Thomas Maus
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Publication number: 20100152354Abstract: The present invention relates to a process for producing aluminum hydroxide flame retardants from an organic acid containing aluminum hydroxide slurry.Type: ApplicationFiled: June 21, 2007Publication date: June 17, 2010Applicant: MARTINSWERK GMBHInventors: Rene Gabriel Erich Herbiet, Winfried Toedt
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Publication number: 20100061924Abstract: Process for the production of aluminum hydroxide flame-retardants by wet-miling and spray-drying an aluminium hydroxide containing slurry.Type: ApplicationFiled: June 21, 2007Publication date: March 11, 2010Applicant: Martinswerk GmbHInventors: Rene Gabriel Erich Herbiet, Norbert Wilhelm Puetz, Volker Ernst Willi Keller, Winfried Toedt
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Publication number: 20090131574Abstract: 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: ApplicationFiled: June 21, 2007Publication date: May 21, 2009Applicant: Martinswerk GmbHInventors: Rene Gabriel Erich Herbiet, Winfried Toedt, Wolfgang Hardtke, Hermann Rautz, Christian Alfred Kienesberger, Mario Neuenhaus
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Publication number: 20090131573Abstract: 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: ApplicationFiled: June 21, 2007Publication date: May 21, 2009Applicant: Martinswerk GmbHInventors: Rene Gabriel Erich Herbiet, Volker Ernst Willi Keller, Dagmar Linek, Winfried Toedt
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Publication number: 20090118410Abstract: 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: ApplicationFiled: June 21, 2007Publication date: May 7, 2009Applicant: Martinswerk GmbHInventors: Rene Gabriel Erich Herbiet, Volker Ernst Willi Keller, Dagmar Linek, Winfried Toedt, Norbert Wilhelm Puetz, Ingo Uwe Heim
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Patent number: 6894101Abstract: 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: GrantFiled: July 18, 2001Date of Patent: May 17, 2005Assignee: Martinswerk GmbHInventors: Heinz Paul, René Herbiet, Hans Jürgen Eichler, Guido Jodocy, Winifried Toedt
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Patent number: 6280839Abstract: 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: GrantFiled: May 21, 1999Date of Patent: August 28, 2001Assignee: Alusuisse Martinswerk GmbHInventors: Neil Brown, Michael Aggleton
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Patent number: 6171651Abstract: 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: GrantFiled: July 22, 1999Date of Patent: January 9, 2001Assignee: Martinswerk GmbH fur Chemische und Metallurgische ProduktionInventor: Neil Brown
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Patent number: 5827906Abstract: 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: GrantFiled: August 25, 1997Date of Patent: October 27, 1998Assignee: Martinswerk GmbH Fur Chemische und Metallurgische ProduktionInventors: Heinz-Dieter Metzemacher, Rainer Seeling