| abstract |
PROBLEM TO BE SOLVED To simultaneously solve the two problems of improving the dimensional stability of a stretched saturated norbornene resin film and suppressing the bowing phenomenon. SOLUTION: The dimensional change rate when suspended in an environment of 60 ° C. and a relative humidity of 90% or 90 ° C. for 500 hours is −0.1% to 0 in both the slow axis direction and the direction perpendicular thereto. 0.1%, thickness variation of 0 to 2 μm, Re variation of 0 to 5 nm, Rth variation of 0 to 10 nm, and slow axis deviation of −0.5 to 0.5 °. A saturated norbornene resin film characterized by [Selection figure] None |