Bayer Aktiengesellschaft

Maschinenfabrik Hennecke Gmbh

Gerd Reffelmann

Reiner Raffel

Wilfried Ebeling

Gunter Hauptmann

The invention is directed to a method and device for the discontinuous production of block foam. The device has a mixing unit provided with component feed lines and a stirrer. The device is vertically movable on a bridgelike framework. The mixing unit has a bottomless cylindrical shell which serves as a mixing container. The bottomless cylindrical shell can be arranged on a head plate and can be placed on the bottom of a mold placed beneath it. On the bottom of the mold is a flexible elastic layer on top of which is arranged a plastic film.

Method and apparatus for the discontinuous production of a foamed block

The instant invention is directed to a process for the continuous production of block-shaped foam and to the equipment used therefore. The process of the invention broadly involves the heating of the bottom film prior to application of the foamable mixture. In this way, the undesirable crust generally formed on the bottom of the foam blocks is substantially reduced and/or eliminated.

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Overath, Germany

Gerd Reffelmann