MULTILAYER FILM FOR RECLOSABLE PACKAGING WITH IMPROVED RECLOSING

MULTILAYER FILM FOR RECLOSABLE PACKAGING WITH IMPROVED RECLOSING

Multilayer film comprising two thin layers D and E of a thermoplastic material bonded to one another by a continuous layer A that is a hot-melt pressure-sensitive adhesive composition: a composition of styrene block copolymers (a mixture of diblock and triblock copolymers); and one or more tackifyin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ROBERT CHRISTOPHE, SALLET LUDOVIC, NOTTEAU CHRISTOPHE
Format: Patent
Sprache:eng ; pol
Schlagworte:
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
PERFORMING OPERATIONS
TRANSPORTING
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Beschreibung
Zusammenfassung:Multilayer film comprising two thin layers D and E of a thermoplastic material bonded to one another by a continuous layer A that is a hot-melt pressure-sensitive adhesive composition: a composition of styrene block copolymers (a mixture of diblock and triblock copolymers); and one or more tackifying resins with a softening temperature of 5 to 140° C.; the adhesive layer A connected to the layer D via a tie layer B, and connected to the layer E via a tie layer C, B and C being polyethylene or polypropylene modified by a cyclic anhydride of an unsaturated acid having from 4 to 8 carbon atoms, manufacture of the film by coextrusion, and Use of the film for resealable packagings.