Patent ID: 6905744
Filing Date: 2005-06-14
Classification: A61J,A61M,B29C,B29K,B29L,B32B,C08L,Y10T

Abstract:
1. A multilayered film comprising five layers, wherein: a first layer and a fifth layer are made of (A) an ethylene.α-olefin copolymer having a density of 0.930 to 0.950 g/cm a second layer is made of: (B) a mixed resin comprising 30 to 60% by weight of an ethylene α-olefin copolymer having a density of 0.910 to 0.930 g/cm (C) a mixed resin comprising 35 to 55% by weight of a polypropylene having a density of 0.900 to 0.930 g/cm a third layer is made of: the ethylene.α-olefin copolymer (A); or (D) a mixed resin comprising 40 to 60% by weight of a polypropylene having a density of 0.900 to 0.930 g/cm a fourth layer is made of: (E) a mixed resin comprising 35 to 55% by weight of an isotactic polypropylene having a melt flow rate (MFR) of 1 to 40 g/10 minutes (230° C.) and a melting point of 140 to 170° C., 40 to 60% of an ethylene.1 butene elastomer having a density of 0.860 to 0.900 g/cm