LAMINATE MADE OF POLYETHYLENE AND MEDICAL CONTAINER COMPRISING THE SAME

PROBLEM TO BE SOLVED: To provide a laminate made of polyethylene, which has excellent flexibility, a barrier property, and cleanliness (freeness from fine particles), does not deform even after a sterilization treatment, and can maintain high transparency, and to provide a medical container using the same.SOLUTION: There is provided a laminate containing an ethylene-based polymer of a specific amount blended, the ethylene-based polymer having a density of 920 to 960 kg/m, an MFR of 0.1 to 15.0 g/10 minutes, two peaks in a molecular weight measurement by gel permeation chromatography, a ratio (Mw/Mn) of a weight average molecular weight (Mw) and a number average molecular weight (Mn) in a range of 2.0 to 7.0, and, when molecular weight fractionation is carried out, 0.15 or more long-chain branch per 1000 carbon atoms of a main chain in a fraction having an Mn of 100000 or more. 【課題】柔軟性、バリアー性、クリーン性（低微粒子性）に優れ、滅菌処理後も変形せず、高い透明性が保持されるポリエチレン製積層体およびこれを用いた医療容器を提供する。【解決手段】密度が９２０〜９６０ｋｇ／ｍ３、ＭＦＲが０．１〜１５．０ｇ／１０分、ゲル・パーミエーション・クロマトグラフィーによる分子量測定において２つのピークを示し、重量平均分子量（Ｍｗ）と数平均分子量（Ｍｎ）の比（Ｍｗ／Ｍｎ）が２．０〜７．０の範囲であり、分子量分別した際のＭｎが１０万以上のフラクション中に長鎖分岐を主鎖１０００炭素数あたり０．１５個以上有するエチレン系重合体を特定量配合し、積層体とする。【選択図】なし