COMPOUND FOAM MATERIAL, HEAT INSULATION ELEMENT MADE OF COMPOUND FOAM MATERIAL AND METHOD FOR PRODUCING A COMPOUND FOAM MATERIAL

摘要

Composite foam comprises a foam material (1) made of a thermoplastic material, preferably expanded polystyrene, expanded polyethylene and/or expanded polypropylene, and granules or pieces of at least one lightweight filler material (2), which are incorporated in the foam material of thermoplastic material. An independent claim is also included for producing the composite foam using the foamable thermoplastic material, preferably expandable polystyrene, expandable polyethylene and/or expanded polypropylene as the matrix material, which are foamed after the addition of the lightweight filler material, which are present as granules, or is previously cut into pieces.