Process for the production of a multiple layer laminate

Disclosed is a process for producing a laminate having at least three layers comprising a base layer of polystyrene, an intermediate layer of an ABS polymer and a third barrier layer of a vinyl chloride or vinylidene chloride polymer comprising the steps of co-extruding through a single die orifice...

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Bibliographische Detailangaben
Hauptverfasser:	CHAPMAN, JAMES R, MEDLEY, RONALD D
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 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
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Beschreibung
Zusammenfassung:	Disclosed is a process for producing a laminate having at least three layers comprising a base layer of polystyrene, an intermediate layer of an ABS polymer and a third barrier layer of a vinyl chloride or vinylidene chloride polymer comprising the steps of co-extruding through a single die orifice a heat plastified composite structure comprising a base layer of polystyrene and a surface layer of an ABS polymer and thereafter laminating a preformed layer of a barrier material polymer to the ABS surface layer of the co-extruded composite.