| abstract |
(57) [Summary] [Structure] Density 0.910 g / ml or less, melting point 116 ° C. or more, 1% modulus 1200 kg / cm 2 or less, n-hexane extract content 10% by weight or less, melt index (M I) 0.8 to 10 g / 10 minutes ultra-low density ethylene-α- Intermediate layer composed of olefin copolymer, MI 0.5 to 5 g / 10 minutes, composed of an ethylene-vinyl acetate copolymer having a vinyl acetate content of 5 to 15% by weight, unsaturated alkoxysilane, and both outer layers water-crosslinked with the silicone-grafted copolymer with an organic peroxide Laminated film and its method of manufacture by coextrusion. [Effect] This film is excellent in heat resistance, impact resistance, tear resistance, puncture resistance, cold resistance, light transmission, and has high abrasion resistance (scratch resistance) and weather resistance, and at low cost, It is suitable as a film for greenhouse cultivation, tunnel cultivation, mulch cultivation and the like. |