POLYMER FOAM PLANK WITH DENSIFIED SKIN, METHOD AND APPARATUSFOR PRODUCING THE SAME

POLYMER FOAM PLANK WITH DENSIFIED SKIN, METHOD AND APPARATUSFOR PRODUCING THE SAME

A method and apparatus for making a densified skin polymer foam plank (12 an d 22) comprising providing a polymer foam having a plurality of cells and heating an outer surface of the foam at a heating station (46 and 48). The heating step collapses and melts the cells adjacent the outer surface to f...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ZETTEL, DAVID P, FARHA, SAID K, STIMLER, JEFFERY J
Format: Patent
Sprache:eng ; fre
Schlagworte:
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A method and apparatus for making a densified skin polymer foam plank (12 an d 22) comprising providing a polymer foam having a plurality of cells and heating an outer surface of the foam at a heating station (46 and 48). The heating step collapses and melts the cells adjacent the outer surface to for m the densified skin (14, 24, 26, 54 and 56) having a density greater than a density of the foam before the heating step. Additionally, the method and apparatus may further include extruding the polymer foam from an extruder.