PROCESS FOR THE CUTTING OF THERMOPLASTIC POLYMERS DOWNSTREAM OF A WATER-RING DIE

PROCESS FOR THE CUTTING OF THERMOPLASTIC POLYMERS DOWNSTREAM OF A WATER-RING DIE

Process for the production of substantially cylindrical pellets of vinyl-aromatic (co)polymers, leaving a water-ring extrusion die, wherein the extrusion is effected so that the length/diameter ratio of the pellet ranges from 1.3 to 2 and the diameter of the (base) ranges from 2 to 3.2 mm, with a fl...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DINO FERRI, MAURIZIO SAIU, FRANCESCO PASQUALI, ALESSANDRO CASALINI
Format: Patent
Sprache:eng ; por
Schlagworte:
MAKING GRANULES OR PREFORMS
PERFORMING OPERATIONS
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED
RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:Process for the production of substantially cylindrical pellets of vinyl-aromatic (co)polymers, leaving a water-ring extrusion die, wherein the extrusion is effected so that the length/diameter ratio of the pellet ranges from 1.3 to 2 and the diameter of the (base) ranges from 2 to 3.2 mm, with a flow-rate of the polymer, per hole of the die, ranging from 4 to 20 kg/h.