Maschinenfabrik Hennecke Gmbh

Bayer Aktiengesellschaft

Hennecke Gmbh

Machinenfabrik Hennecke Gmbh

Herbert Steilen

Hans-Michael Sulzbach

Reiner Raffel

Wilfried Ebeling

Robert Eiben

Ferdinand Althausen

Horst Klahre

Process for foam production using dissolved under pressure carbon dioxide

A process and apparatus are described for the continuous production of polyurethane slabstock foam by applying a polyurethane reactive mixture in the form of a liquid foam from a substantially punctual source onto the conveyor belt of a slabstock foam plant and distributing the liquid foam transversely across the width of the conveyor belt by means of a distribution device arranged above the conveyor belt, to form a distribution slot, wherein the distribution device is in the form of a stationary plate.

Process for the continuous production of polyurethane slabstock foam

A process and a device are described for the production of polyurethane foam by application of a froth onto the conveyor belt of a block-foam installation, whereby the froth is applied onto the lower conveyor belt in a free, substantially vertical fall and flowing of the froth contrary to the direction of movement of the conveyor belt is prevented by a stationary, substantially vertical barrier arranged transversely on the conveyor belt.

Process and device for continuous production of polyurethane block foam

For the expansion of a liquid containing gas under pressure in dissolved form, it is proposed that the liquid be passed with expansion through an extended flow channel with a small cross-sectional measurement with generation of high rates of shear. The velocity of the liquid is then reduced prior to the foaming.

Apparatus for foam manufacturing using carbon dioxide dissolved under

The invention relates to a method and an apparatus for the continuous production of foam blocks or sheets having an essentially rectangular cross-section from a foamable, liquid reaction mixture, possibly in the form of a liquid froth, in which the reaction mixture is applied from a stationary mixing head onto a moving lower facing sheet inclined in the longitudinal direction. An upper covering sheet is supplied from above and is brought into contact with the reaction mixture by means of a deflecting element. The deflecting element is flat in the longitudinal direction, so that a channel with an essentially constant cross-section is formed between the lower facing sheet and the upper covering sheet guided by the deflecting element, the length of which channel in a longitudinal direction is several times greater than its central height H.sub.M. The deflecting element can be oscillated about an axis at the entry end where it rests on the reaction mixture by the application of pressure.

Method for the continuous production of foam blocks or sheets

Method and apparatus for foam manufacture using carbon dioxide dissolved

The invention relates to a method and an apparatus for producing polyurethane foam with a controlled number of cells, in which a gas is dispersed in one of the components, i.e. the polyol or the isocyanate, in a dispersing device arranged between the mixing head and the metering pump for the respective component.

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Konigswinter, Germany

Herbert Steilen