| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an easily adherable polyester film for optical use that has excellent adhesion to an optical functional layer under high-temperature high-humidity conditions. <P>SOLUTION: The easily adherable polyester film has a coated layer mainly composed of a urethane resin constituted of an aliphatic polycarbonate polyol as a constituent and a crosslinking agent at least on one side of the polyester film. The glass transition temperature of the urethane resin is below 0°C. The ratio of the absorbency around 1,460 cm<SP>-1</SP>derived from the aliphatic polycarbonate constituent to the absorbency around 1,530 cm<SP>-1</SP>derived from the urethane is 0.40-1.55 by an infrared spectroscopy. <P>COPYRIGHT: (C)2011,JPO&INPIT |
