| 摘要 |
PROBLEM TO BE SOLVED: To provide an unbreakable laminated film which can be formed stably having excellent handleability because of high specific density though a practically applicable reflective function in a visual ray region is provided, as well as a layer containing a large amount of an inorganic particles, and which enables a degradation (yellow coloring) by an UV ray to be suppressed. SOLUTION: The laminated film comprises an A layer and a B layer adhered to the A layer, and the A layer has a density of 1.00-1.25 g/cm<SP>3</SP>and contains 30-60 wt.% of a copolymerized polyester comprising a dicarboxylic acid ingredient composed of 5-15 mole% of isophthalic acid or naphthalene dicarboxylic acid and 85-95 mole% of terephthalic acid and 98 mole% or more of ethylene glycol as a diol ingredient and 70-40 wt.% of barium sulfate particles having an average particle size of 0.3-3.0μm, and the B layer has a density of 1.35-1.50 g/cm<SP>3</SP>and comprises polyester. COPYRIGHT: (C)2009,JPO&INPIT
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