PROBLEM TO BE SOLVED: To provide a medical multi-chamber container which has a liquid agent compartment and a medicine compartment liquidtightly connected thereto, wherein the liquid agent compartment does not have deformation, transparency deterioration such as whitening, and blocking between inner layers even after sterilization at &ge121°C, but has excellent weak welding properties, has easy communication, and also has excellent steam barrier properties and impact resistance.SOLUTION: In the medical multi-chamber container, the liquid agent compartment is formed of a multilayer film having at least three layers of: an outer layer formed of an ethylene-based polymer an inner layer formed of a propylene-based copolymer and an intermediate layer positioned between the layers. The propylene-based copolymer is a polymer composition prepared with propylene and ethylene as the major components, wherein (1) ethylene content is equal to or not less than 7 wt.% and equal to or not more than 8 wt.%, (2) the fusion peak temperature is equal to or not less than 150°C and less than 160°C, and (3) the heat of crystallization is equal to or not less than 55 J/g and equal to or not more than 65 J/g.COPYRIGHT: (C)2012,JPO&INPIT【課題】121℃以上の滅菌後も変形、白化等の透明性悪化、内層同士のブロッキングがなく、弱溶着特性が良好で連通が容易であり、水蒸気バリア性、耐衝撃性にも優れた液剤区画室およびそれに液密に結合された薬剤区画室を有する医療用複室容器を提供する。【解決手段】そのような医療用複室容器は、液剤区画室が、エチレン系重合体で形成された外層、プロピレン系共重合体から形成された内層、およびこれらの層の間に位置する中間層の少なくとも3層を有して成る多層フィルムから形成され、プロピレン系共重合体が、プロピレンとエチレンを主成分として調製された重合体組成物であり、1)エチレン含有量が7重量%以上、8重量%以下2)融解ピーク温度が150℃以上、160℃未満3)結晶化熱が55J/g以上、65J/g以下であることを特徴とする。【選択図】なし
