| abstract |
Provided is a film for a capacitor that can improve dielectric strength retention at high temperatures and can also improve metal vapor deposition properties and formability. The film for a capacitor contains a hydrogenated dicyclopentadiene ring-opened polymer that is crystalline and has a heat shrinkage ratio of not less than 0.01% and not more than 1.0% when heated at 200° C. for 10 minutes, a plane orientation factor of 0.01 or more, a density of 1.03×10 6 g/m 3 or more, and a thickness of 15.0 μm or less. |