Messer Industries Usa, Inc.

Linde Gmbh

Kunststoff-institut Lüdenscheid (kimw Gmbh)

Andreas Kürten

Rolf Heninger

Pawel Szych

Andreas Praller

A method for impregnating a polymeric granulate with a physical blowing agent is disclosed. The polymeric granulate can be a typical material such as a polycarbonate that is used in foam injection moulding processes. The physical blowing agent can be carbon dioxide which impregnates that polymeric granulate at a temperature range of 40&#xb0; to 120&#xb0; C. and a pressure range of 15 to 55 bar. Preferably, the polymeric granulate is heated in a range of 50&#xb0; to 90&#xb0; with a range of 60&#xb0; to 80&#xb0; preferred. A pressure range of 25 to 45 bar is preferred with a range of 30 to 40 bar more preferred.

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Iserlohn, Germany

Andreas Kürten