Film for capacitor and method of producing same
AssigneeZeon Corporation
InventorsAyako Kato, Shinsuke Miyazawa
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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 1.03×106 g/m3 or more, and a thickness of 15.0 μm or less.
Claims2
A film for a capacitor comprising a hydrogenated dicyclopentadiene ring-opened polymer that is crystalline, and having:
- 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 1.03×106 g/m3 or more;
- and
- a thickness of 15.0 μm or less.
Dependencies are inferred from the claim text.