| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polyolefin resin multilayer film which has high stiffness, excellent blocking resistance and reduced curling properties, jointly has low powdering properties and weatherability, and is suitable for a packaging material of food/beverage, medicines/medical supplies, an optical film, a liquid crystal member, electronic/electric components, precise parts, etc., and for the backside sheet of a solar battery. <P>SOLUTION: The polyolefin resin multilayer film comprises a three layer structure of an A-layer/B-layer/C-layer in which the A-layer and the C-layer are formed of a resin composition prepared by mixing 5 to 20 pts.wt. of a mixed resin of a low density polyethylene and propylene resin to 100 pts.wt. of an ethylene-α-olefin copolymer whose density is in a range of 0.920 to 0.938 g/cm<SP POS="POST">3</SP>, the B-layer comprises, as a main component, an ethylene-α-olefin copolymer having a density of <0.920 g/cm<SP POS="POST">3</SP>and is admixed with 0.01 to 0.3 wt.% of an antioxidant of a phosphorous-phenol compound, and the thickness of the C-layer is ≤2/3 of that of the A-layer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
