Patents Assigned to Martinswerk GmbH fur Chemische und Metallurgische Produktion
  • Production of aluminium hydroxide coated glass microspheres
    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
  • Surface-modified filler composition
    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