| 摘要 |
PURPOSE: To improve water content and oxygen barrier properties and to effectively apply to the cover material of electroluminescent device by sequentially laminating a fluorine resin layer, an adhesive resin layer, ethylene-vinyl alcohol copolymer resin layer, etc. CONSTITUTION: Fluorine resin layer made of chloritrifluoroethylene, ethylene fluoride-propylene copolymer synthetic resin, etc., is formed 50-300 or preferably about 50-200μm. Ethylene-vinyl alcohol copolymer resin layer (EVOH) having ethylene content of 20-60mol %, preferably 25-50mol%, saponification degree of 95% or more, preferably 96% or more obtained by saponifying an adhesive resin layer, ethylene-vinyl acetate copolymer is disposed with the resin layer. Further, an adhesive resin layer made of hot-melt layer is disposed at the outside of the EVOH layer. Such a multilayer structure is executed by a dry laminating method, a coextruding method, a coextruding coating method, etc.
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