| 摘要 |
A white laminated film which has practically sufficient reflectivity at a visible range, can be formed stably, is free from deterioration (yellowing) by ultraviolet radiation, rarely deforms by heat and can be advantageously used as a reflector substrate for liquid crystal displays and internal illumination type electrically spectacular signs, is provided. The laminated film comprises a first layer of a composition which comprises 31 to 60 wt% of inert particles having an average particle diameter of 0.3 to 3.0 µm and 40 to 69 wt% of a polyester consisting of 1 to 100 mol% of naphthalenedicarboxylic acid and 0 to 99 mol% of terephthalic acid as a dicarboxylic acid component and ethylene glycol as a diol component, and a layer B of a composition which comprises 0 to 30 wt% of inert particles having an average particle diameter of 0.3 to 3.0 µm and 70 to 100 wt% of a polyester consisting of 3 to 20 mol% of naphthalenedicarboxylic acid and 80 to 97 mol% of terephthalic acid as a dicarboxylic acid component and ethylene glycol as a diol component and which is in direct contact with the first layer. |
