BIODEGRADABLE MULTI-LAYER FILM
THE INVENTION RELATES TO A BIODEGRADABLE MULTI-LAYER FILM WHICH HAS A REGULATABLE BARRIER EFFECT AGAINST OXYGEN, NITROGEN, CARBON DIOXIDE AND STEAM AND IS USED IN THE FIELD OF PACKAGING, ESPECIALLY FOR FOOD, OR IN AGRICULTURE. THE INVENTION ALSO RELATES TO A METHOD FOR PRODUCING SAID FILM. THE INVEN...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | THE INVENTION RELATES TO A BIODEGRADABLE MULTI-LAYER FILM WHICH HAS A REGULATABLE BARRIER EFFECT AGAINST OXYGEN, NITROGEN, CARBON DIOXIDE AND STEAM AND IS USED IN THE FIELD OF PACKAGING, ESPECIALLY FOR FOOD, OR IN AGRICULTURE. THE INVENTION ALSO RELATES TO A METHOD FOR PRODUCING SAID FILM. THE INVENTIVE MULTI-LAYER FILM CAN BE PRODUCED BY CO-EXTRUSION AND IS FORMED BY AT LEAST ONE STARCH BLEND LAYER CONSISTING OF A MODIFIED THERMOPLASTIC STARCH BLEND CONTAINING BETWEEN 1% AND 10% OF WATER, AND A POLYESTER LAYER CONSISTING OF A BIODEGRADABLE POLYESTER. |
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