Patents Assigned to Heraklith Baustoffe AG
  • Process for preparing an insulating board
    Patent number: 5741379
    Abstract: The present invention pertains to an insulation board made of a secondary mat formed by multiply folding a primary mat, characterized in that the primary mat has a coating of an impregnating agent at least on one side.
    Type: Grant
    Filed: July 18, 1995
    Date of Patent: April 21, 1998
    Assignee: Heraklith Baustoffe AG
    Inventor: Christof Tschernuth