Method and apparatus for the extrusion of foamable...

Details Method and apparatus for the extrusion of foamable... Method and apparatus for the extrusion of foamable...

B - Operations, Transporting

29

D

18/663

B29D 27/00 (1980.01)

Patent

CA 1070070

ABSTRACT Plastic foam is extruded into and from a channel where it expands from an extrusion orifice. A pressure controlled gas pocket provides support for the foaming material generally adjacent the extrusion die. The arrange- ment permits extrusion of foam having widely varying char- acteristics with a single apparatus.

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