| 摘要 |
Disclosed is a white laminate film which shows a practically satisfactory refractive property in the visible light range, can be formed stably, is reduced in UV-ray-induced deterioration (yellow discoloration), has a reduced thermal deformation, and can be used suitably as a base material for a light-reflecting panel for use in a liquid crystal display or an internally illuminating electric signboard. A laminate film comprising: a first layer which is made of a composition comprising 31 to 60% by weight of inactive particles having an average particle diameter of 0.3 to 3.0 mum and 40 to 69% by weight of a polyester, the polyester comprising 1 to 100% by mole of naphthalenedicarboxylic acid and 0 to 99% by mole of terephthalic acid as the dicarboxylic acid components and ethylene glycol as the diol component; and a layer B which is provided with being contacted with the first layer and which is made of a composition comprising 0 to 30% by weight of inactive particles having an average particle diameter of 0.3 to 3.0 mum and 70 to 100% by weight of a polyester, the polyester comprising 3 to 20% by mole of naphthalenedicarboxylic acid and 80 to 97% by mole of terephthalic acid as the dicarboxylic acid components and ethylene glycol as the diol component. ® KIPO & WIPO 2008 |
