| 摘要 |
PURPOSE: To obtain a base material for a container for medical treatment with excellent flexibility, transparency and heat resistance by using a polymer compsn. comprising polypropylene, polybutene-1, etc., with a polystyrene-poly-1,2- isoprene block copolymer or its hydrogenated products as a forming layer. CONSTITUTION: In a base material for a container for medical treatment being suitable for a container, a tube, etc., wherein a liq. handled in the medical field such as blood and medical fluid is stored, a polymer compsn. comprising polypropylene, polybutene-1 and a copolymer A wherein these are main components and a polystyrene-poly-1,2-isoprene block copolymer or its hydrogenated product B, is used as a forming layer. Among the components A, polypropylene or a copolymer wherein this is a main component, is a polypropylene with an ordinary stereospecific structure, namely, an isotactic or syndiotactic crystalline polymer and pref. a copolymer being rich in randomness. |
