| 摘要 |
PURPOSE:To obtain an agricultural film having excellent cold resistance, light transmission, mechanism strength and workability by forming a laminated film having specific structure while a specific ethylene-alpha-olefin copolymer and a specific ethylene-vinyl acetate copolymer, which have not been utilized as an agricultural film, as film layers respectively. CONSTITUTION:A laminated film is composed of an intermediate layer consisting of an ultra-low density ethylene-alpha-olefin copolymer having density of 0.910g/ml or less, the melting point of 116 deg.C or lower, a 1% modulus of 1200kg/cm<2> or less, a not more than 10wt.% n-hexane extract, and a melt index of 0.8-10g/ten min and both outer layers made up of an ethylene-vinyl acetate copolymer having the melt index of 0.5-5g/ten min and 5-15wt.% vinyl acetate content, the thickness of the intermediate layer occupies at least 35-90% of the whole thickness of the laminated film, and the whole thickness of the laminated film is 50-200mum. |
