MULTILAYER FILM FOR RECLOSABLE PET PACKAGING

Multilayer film comprising an adhesive layer A consisting of a self-adhesive, thermo-fusible extrudable composition; a complexable thin layer B, and a thermosealable and breakable layer C of a linear copolymer C1 obtained by polycondensation of a composition of monomers comprising at least one diol...

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Bibliographische Detailangaben
Hauptverfasser:	ROBERT, CHRISTOPHE, BRESTAZ, MARC, SALLET, LUDOVIC, PEYRAS-CARRATTE, JEREMIE
Format:	Patent
Sprache:	eng ; fre
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 LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 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:	Multilayer film comprising an adhesive layer A consisting of a self-adhesive, thermo-fusible extrudable composition; a complexable thin layer B, and a thermosealable and breakable layer C of a linear copolymer C1 obtained by polycondensation of a composition of monomers comprising at least one diol (i), at least one compound (ii) selected from teriphthalic acid or one of the diester derivatives thereof, and at least one compound (iii) selected from an aromatic or aliphatic carboxylic diacid or one of the diester or anhydride derivatives thereof; the quantities of monomers (i), (ii) and (iii) used in the polycondensation being such that the softening temperature of C1 is less than 190°C., method for producing said multilayer film, and resealable package comprising a PET container and a lid consisting of said multilayer film. Un film multicouche comprenant une couche adhésive A constituée par une composition auto-adhésive thermofusible extrudable; une couche mince complexable B ; et une couche thermoscellable et sécable C d'un copolyester linéaire C1 obtenu par polycondensation d'une composition de monomères comprenant au moins un diol (i), au moins un composé (ii) qui est l'acide téréphtalique ou un de ses dérivés diesters, et au moins un composé (iii) qui est un diacide carboxylique aromatique ou aliphatique ou un de ses dérivés diesters ou anhydrides; les quantités des monomères (i), (ii) et (iii) mises en uvre dans la polycondensation étant telles que la température de ramollissement de C1 est inféheure à 190 C. Un procédé de fabrication dudit film multicouche, et un emballage refermable comprenant un réceptacle à base de PET et un opercule constitué dudit film multicouche.