Multi-chamber container

Abstract

A multi-chamber container having chambers formed of a film of which at least an innermost layer is a cyclic polyolefin, one chamber being partitioned from another chamber by a partition wall, and the partition wall having an easily peelable seal layer which contains a low-density polyethylene and a propylene/α-olefin copolymer. The multi-chamber container enables the contents of the chambers to be mixed together.

1 . A multi-chamber container having a plurality of chambers formed of a film of which at least an innermost layer is a cyclic polyolefin, wherein one chamber and another chamber are partitioned by a partitioning wall, and said partitioning wall comprises an easily peelable seal layer that contains a low-density polyethylene and a propylene/α-olefin copolymer.  
   
   
       2 . The multi-chamber container according to  claim 1 , wherein said easily peelable seal layer is a composition containing a low-density polyethylene and a propylene/α-olefin copolymer at a weight ratio of 80:20 to 20:80.  
   
   
       3 . The multi-chamber container according to  claim 1 , wherein said easily peelable seal layer is an easily peelable single-layer film or an easily peelable multi-layered film having an easily peelable layer on the surface thereof.  
   
   
       4 . The multi-chamber container according to  claim 1 , wherein said partition wall includes a weakly melt-adhered seal portion comprising said easily peelable seal layer and a strongly melt-adhered seal portion.  
   
   
       5 . The multi-chamber container according to  claim 1 , wherein the film constituting said plurality of chambers is a multi-layered film including a first layer of a cyclic polyolefin which is the innermost layer and a second layer of a linear polyolefin adjacent to said layer.  
   
   
       6 . The multi-chamber container according to  claim 5 , wherein the film constituting said plurality of chambers further has a gas-barrier layer and/or a printable layer on the second layer of said linear polyolefin.  
   
   
       7 . The multi-chamber container according to  claim 6 , wherein said gas-barrier layer is a metal foil, a metal-deposited layer or an inorganic material-deposited layer.  
   
   
       8 . The multi-chamber container according to  claim 6 , wherein said printable layer is a polyester layer or a polyester layer having an inorganic material-deposited thin film thereon.  
   
   
       9 . The multi-chamber container according to  claim 1 , wherein said plurality of chambers includes one for containing a liquid agent and one for containing a medicine.  
   
   
       10 . The multi-chamber container according to  claim 1 , wherein said multi-chamber container includes a pair of partition walls facing the ends on one of two chambers, an end of the other chamber is inserted and is melt-adhered between the partition walls, and the two chambers are partitioned by said partition walls.