B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
18/736
B32B 37/00 (2006.01) B29C 43/30 (2006.01) B29C 47/00 (2006.01) B29C 47/04 (2006.01) B29C 55/02 (2006.01) B32B 27/00 (2006.01) B32B 27/08 (2006.01) B32B 27/28 (2006.01)
Patent
CA 1090969
ABSTRACT A method of making an extruded product is disclosed which com- prises extruding fluid material through an annular die to an extrusion exit leading to the central space of the annular die while rotating the die around the axis of the annulus and collecting the extruded material on a collector while moving the collactor substantially along the axis of the annulus, wherein the collector, at least in the area where it collects the extruded material, is substantially cylindrical and is substantially coaxial with the annulus and comprises or is supported by an internal support, and in which method the speed of rotation of the die and of movement of the collector are such that the extruded material is stretched and is given a grain direction on the collector that is at a substanfial angle to the axis of the annulus, and the extruded material after solidification is released from the support. An apparatus especially adapted for carrying out this process and featuring a rotatable annular die is also disclosed.
245593
Fetherstonhaugh & Co.
Rasmussen Ole-Bendt
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