The present invention refers to a polymeric film comprising an odor barrier material and being able to pack malodorous waste.
대표청구항▼
1. A multilayer film having a weight per surface ratio of less than 25 g/m2 for use in malodorous item packaging, where the film comprises at least an outer layer comprising a self-adhesive material and a layer comprising an oxygen barrier material; where the layer comprising the self-adhesive mater
1. A multilayer film having a weight per surface ratio of less than 25 g/m2 for use in malodorous item packaging, where the film comprises at least an outer layer comprising a self-adhesive material and a layer comprising an oxygen barrier material; where the layer comprising the self-adhesive material is configured to be in direct contact with an item packed in the film when the film is in use for packaging and wherein the self-adhesive material comprises a material selected from the group consisting of an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 20%, an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 25%, an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 30%, an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 40%, a propylene ethylene copolymer where the ethylene content is at least 10% per weight, styrene copolymers with a styrene content of less than 50% per weight, an ethylene alpha olefin copolymer with a density less than 0.9 g/cm3, a maleic anhydrite grafted polyolefin, an ethylene methyl acrylate copolymer with a methyl acrylate content of at least 20%, an ethylene butyl acrylate material with a butyl acrylate content of at least 15%, a poly-isobutylene polymer (PIB), a polybutene copolymer, a silicone elastomer, and mixtures thereof. 2. The film of claim 1, where the weight per surface ratio of the film is less than 20 g/m2. 3. The film of claim 1, where the weight per surface ratio of the film is less than 15 g/m2. 4. The film of claim 1, where the film comprises or consists of the structure: OUTER LAYER/ABUSE LAYER/INTERMEDIATE LAYER/BARRIER LAYER/INTERMEDIATE LAYER/ABUSE LAYER/INNER LAYER. 5. The film of claim 1, where the film comprises or consists of the structure: OUTER LAYER/INTERMEDIATE LAYER/BARRIER LAYER/INTERMEDIATE LAYER/INNER LAYER. 6. The film of claim 1, where the self-adhesive material comprises ethylene vinyl acetate copolymer, where the vinyl acetate weight ratio is at least 20%. 7. The film of claim 1, where the self-adhesive material comprises ethylene vinyl acetate copolymer, where the vinyl acetate weight ratio is at least 25%. 8. The film of claim 1, where the self-adhesive material comprises ethylene vinyl acetate copolymer, where the vinyl acetate weight ratio is at least 30%. 9. The film of claim 1, where the self-adhesive material comprises ethylene vinyl acetate copolymer, where the vinyl acetate weight ratio is at least 40%. 10. The film of claim 1, where the self-adhesive material comprises a propylene ethylene copolymer where the ethylene content is at least 10% per weight, or an ethylene alpha olefin copolymer with density less than 0.9 g/cm3, ora maleic anhydrite grafted polyolefin, orstyrene copolymers with styrene content less than 50% per weight, oran ethylene methyl acrylate copolymer with a methyl acrylate content of at least 20%, oran ethylene butyl acrylate material with a butyl acrylate content of at least 15%, ora poly-isobutylene polymer (PIB) or a polybutene copolymer, ora silicone elastomer,or mixtures thereof. 11. The film of claim 10, where the self-adhesive material comprises an ethylene alpha olefin copolymer with a density less than 0.880 g/cm3. 12. The film of claim 1, where the barrier layer comprises EVOH, polyamide or mixtures thereof. 13. The film of claim 1, where the film comprises an inner layer comprising a polyolefin. 14. The film of claim 13, where the inner layer comprises an ethylene alpha olefin copolymer. 15. The film of claim 1, where the film comprises an inner layer comprising a substantially non resilient material. 16. A multilayer film having a weight per surface ratio of less than 25 g/m2 for use in malodorous item packaging, where the film comprises at least an outer layer comprising a self-adhesive material; a layer comprising an oxygen barrier material; and an inner layer comprising a substantially non resilient material, wherein the self-adhesive material is selected from the group consisting of an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 20%, an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 25%, an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 30%, an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 40%, a propylene ethylene copolymer where the ethylene content is at least 10% per weight, and a styrene copolymer with a styrene content of less than 50% per weight.
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