Method of making multilayer container

This invention relates to a method of making a multilayer container which comprises: a primary stretching and heat-setting process wherein a multilayer sheet comprising a A-PET layer, a functional resin layer and a sealant layer, is heated, primarily stretched and then primarily heat-set, and a seco...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KAWATA, JUN, SASAUCHI, KATSURO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	This invention relates to a method of making a multilayer container which comprises: a primary stretching and heat-setting process wherein a multilayer sheet comprising a A-PET layer, a functional resin layer and a sealant layer, is heated, primarily stretched and then primarily heat-set, and a secondary stretching and heat-setting process wherein the multilayer sheet treated in the primary stretching and heat-setting process is molded with heating by a mold of a thermoforming machine while secondary stretching is performed, followed by secondary heat-setting in the same mold.