초록

The present invention relates to a chlorine-free multilayer film material comprising

대표청구항 ▼

[ What is claimed is:] [1.] A chlorine-free multilayer material comprising:a) a gas-barrier layer comprising a non-chlorine containing organic polymer which is substantially impermeable to oxygen gas;b) two tie layers each contacting one side of said barrier layer;c) an inner surface layer;d) an out

[ What is claimed is:] [1.] A chlorine-free multilayer material comprising:a) a gas-barrier layer comprising a non-chlorine containing organic polymer which is substantially impermeable to oxygen gas;b) two tie layers each contacting one side of said barrier layer;c) an inner surface layer;d) an outer surface layer; ande) two intermediate layers separately positioned between said surface layers and said tie layers, said intermediate layers comprising an ethylene-propylene copolymer having a flexural modulus of less than 200 Mpa and an ethylene content of greater than 10 percent by weight, wherein, at least one of said inner surface layer and said outer surface layer is a sealant layer comprising a material which is sealable by radio frequencies.[ D-3985).]