METHOD OF OBTAINING LAMINATED MATERIAL,APPARATUS THEREFORE AND LAMINATED MATERIAL AS SUCH

A process for producing a laminate of polypropylene bonded to a metal substrate such as steel or aluminium strip, preferably electrolytically chromium coated steel for making can ends, comprises laminating a polypropylene film to the metal and subjecting the film to a temperature above its melting p...

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Bibliographische Detailangaben
1. Verfasser:	HEYES PETER J
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS 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:	A process for producing a laminate of polypropylene bonded to a metal substrate such as steel or aluminium strip, preferably electrolytically chromium coated steel for making can ends, comprises laminating a polypropylene film to the metal and subjecting the film to a temperature above its melting point, and then uniformly and rapidly cooling the laminate to a temperature substantially below the melting Point of the polypropylene by flooding the polypropylene coated surface of the laminate with cold liquid, e.g. water at room temperature.