LAMINATED FILM FOR MEDICAL TREATMENT CONTAINER AND MEDICAL TREATMENT CONTAINER USING IT

摘要

PURPOSE:To obtain a laminated film for a medical treatment container excellent in flexibility, transparency, heat resistance and processability and generating no change due to elongation by forming inner and outer layers and an intermediate layer from linear low density polyethylene resins having specific densities and specific melt flow rates. CONSTITUTION:In a laminated film for a medical treatment container suitable for receiving blood or a liquid medicine, the inner and outer layers thereof are formed from a linear low density polyethylene resin with a density of 0.920-0.940 and a melt flow rate of 0.5-5.0 and the intermediate layer thereof is formed from a linear low density polyethylene resin with a density of 0.890-0.930 and a melt flow rate of 0.5-5.0 or a blend compsn. consisting of said resin and an amorphous or low-crystalline ethylene-alpha-olefin elastomer with a density of 0.860-0.890 and a melt flow rate of 2.5-4.5. At this time, the intermediate layer is formed so as to occupy a thickness of 40-below 60% with respect to the whole of the laminated film. This laminated film is formed into a bag to produce a desired medical treatment container.