| abstract |
PROBLEM TO BE SOLVED: To easily detect defects in optical inspection and minimize the amount of oligomer precipitation, for example, for producing liquid crystal components such as liquid crystal polarizing plates and phase difference plates, for producing PDP components, for producing organic EL components, etc. In addition to the production of various display components, a biaxially oriented polyester film and a release film suitable for various optical applications and the like are provided. SOLUTION: A film having a coating layer containing a silane compound on at least one surface of a polyester film having an orientation principal axis of 11 degrees or less and a film haze value of 10 to 25%. A biaxially oriented polyester film characterized in that the amount of oligomer on the surface of the coating layer when heated at 5 ° C. for 5 minutes is 3.0 mg / m 2 or less, and a release layer was provided on the coating layer of the film A release film, which is a release film and has a peeling force in the range of 10 to 100 mN / cm. [Selection figure] None |