Abstract: A multilayer film: an adhesive layer A: an extrudable hot-melt self-adhesive composition; a complexable thin layer B; and a 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 and at 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.

Abstract: A multilayer film: an adhesive layer A: an extrudable hot-melt self-adhesive composition; a complexable thin layer B; and a 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 and at 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.

Abstract: 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.

Abstract: 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.