MULTILAYER FILM FOR RECLOSABLE PET PACKAGING

A multilayer film:an adhesive layer A: an extrudable hot-melt self-adhesive composition;a complexable thin layer B; anda heat-sealable and cleavable layer C of a linear copolyester C1 obtained by polycondensation of a composition of monomers:at least one diol (i),at least one compound (ii) chosen fr...

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Bibliographische Detailangaben
Hauptverfasser:	ROBERT, CHRISTOPHE, BRESTAZ, MARC, PEYRAS-CARRATTE, JÉRÉMIE, SALLET, LUDOVIC
Format:	Patent
Sprache:	eng ; pol
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:	A multilayer film:an adhesive layer A: an extrudable hot-melt self-adhesive composition;a complexable thin layer B; anda heat-sealable and cleavable layer C of a linear copolyester C1 obtained by polycondensation of a composition of monomers:at least one diol (i),at least one compound (ii) chosen from terephthalic acid or a diester derivative andat least one compound (iii) chosen from an aromatic or aliphatic dicarboxylic acid or a diester or anhydride derivative;the amounts of the monomers (i), (ii) and (iii) used in the polycondensation such that the softening temperature of C1 is below 190° C.A process for producing the multilayer film by co-extrusion blow-molding.A resealable packaging comprising a PET-based receptacle and a seal of said multilayer film, the heat-sealable and cleavable layer (C) of which is heat-sealed on the receptacle.