Chlorine-free multilayer film material, process for its...

Details Chlorine-free multilayer film material, process for its... Chlorine-free multilayer film material, process for its...

B - Operations, Transporting

32

B

B32B 27/28 (2006.01) A61F 5/445 (2006.01) B29C 47/06 (2006.01) B32B 27/08 (2006.01) B32B 27/32 (2006.01)

Patent

CA 2157635

The present invention relates to a chlorine-free multilayer film material comprising a) a gas-barrier layer (1) comprising a non-chlorine containing organic polymer which is substantially impermeable to oxygen gas; b) two tie layers (2) each contacting one side of said barrier layer; c) an inner surface layer (3); d) an outer surface layer (4); and e) two intermediate layers (5) positioned between said surface layers (3,4) and said tie layers (2), said barrier layers (5) comprising an ethylene-pro- pylene copolymer having a flexural modulus of less than 200 MPa and pref- erably less than 150 MPa, a process for the manufacture of this film mate- rial and its use for the manufacture of bags and pouches for ostomy/uros- tomy use.

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