| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a useful film which reduces curling due to the thermal history undergone in the annealing treatment and processing steps for improving antistatic properties, the prevention of dust and the like from attaching thereto, and dimensional stability and excels in workability and the adhesion to a hard coat layer. <P>SOLUTION: The optical laminated polyester film has a film haze of 2.0% or less, both values of the thermal shrinkage ratio in the lengthwise and crosswise directions of the film after the treatment at 150°C for 30 minutes in the range of 1.5-0.5%, and a difference in the values of the thermal shrinkage ratio between the lengthwise and crosswise directions of not greater than 0.5% and a coated layer on both surfaces of the film provided in the process of preparing the film, respectively, and contains an antistatic agent in at least one of the coated layers. <P>COPYRIGHT: (C)2009,JPO&INPIT |
