| abstract |
A duplex container comprising a resin film or sheet formed into a bag by heat sealing, and a partition formed inside thereof, wherein a heat sealing unit is composed of a specific propylene resin composition obtained by multi-step polymerizing. This duplex container can provide a difference in heat sealing strength edge portion thereof that is larger than those in conventional ones, easily controls the temperature of a heat sealing mold when the partition is formed, and is excellent in safety, flexibility, transparency and heat resistance that permit application in a medical field. |