Method and apparatus for the continuous extrusion and...

Details Method and apparatus for the continuous extrusion and... Method and apparatus for the continuous extrusion and...

B - Operations, Transporting

29

C

18/733

B29C 47/60 (2006.01) B29C 47/00 (2006.01) B29C 47/38 (2006.01) B29C 47/58 (2006.01)

Patent

CA 1119370

ABSTRACT OF THE DISCLOSURE: A method for the continuous extrusion and blowing of thin films of plastic material, comprising introducing the raw material into an extruder having a screw, precompressing the material continuously in the cold state in the screw, plasticizing the material by heating, leading the material through a throttling opening along a further portion of the. screw, decompressing the material along a subsequent portion of the screw, degassing the material along still another portion of the screw, again increasing the pressure along a still further portion of the screw, and then extruding the material to a thin film. And an apparatus for the continuous extrusion of thin films of plastic material.

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