Polyethylene Film Having Multi-Layer Structure and Packaging Material Produced Using the Same

Provided is a polyethylene film having a multi-layer structure including an outer layer (A) including a first ethylene polymer having a density M1 of 0.935≤M1≤0.968; an intermediate layer (B) including a second ethylene polymer having a density M2 of 0.900≤M2≤0.920; and an inner layer (C) including...

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Bibliographische Detailangaben
Hauptverfasser: Park, Soyoung, Son, Jaemyoung, Baek, Eunjung, Hong, Daesig, Nam, Joohyun, Jo, Byoungcheon
Format: Patent
Sprache:eng
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Zusammenfassung:Provided is a polyethylene film having a multi-layer structure including an outer layer (A) including a first ethylene polymer having a density M1 of 0.935≤M1≤0.968; an intermediate layer (B) including a second ethylene polymer having a density M2 of 0.900≤M2≤0.920; and an inner layer (C) including a third ethylene polymer having a density M3 of 0.850≤M3≤0.905, wherein the outer layer (A), the intermediate layer (B), and the inner layer (C) are sequentially laminated to form the polyethylene film comprising the multi-layer structure, and wherein a falling ball impact strength per unit thickness and a puncture strength per unit thickness of the polyethylene film comprising the multi-layer structure are 3.0 to 15.0 g/μm and 0.2 to 0.4 N/μm, respectively, and a difference in melting point between the outer layer (A) and the inner layer (C) is 30 to 100° C.