Fiberweb Corovin Gmbh

Dow Global Technolgoies LLC

Henning Roettger

Jared A Austin

Steven P Webb

Mathias Muth

Jean-Claude Abed

Joachim Bauer

The present invention relates to a perforated thermoplastic structure comprising at least a first layer () and a plurality of perforations, which extend through the first layer (). The perforations have a three-dimensional, preferably approximately conical or cylindrical shape (). A second layer forms an inner surface () of the shape (), whereas the first layer forms an outer surface () of the shape (). The first layer contains a thermoplastic material, whose melting point is lower than a melting point of the thermoplastic material of the second layer.

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Braunschweig, Germany

Henning Roettger